How to torque pinion nut. If you are using new bearings the torque spec.

How to torque pinion nut Min torque Small Pinion. If you mix this up, its probably Recheck the torque to turn the pinion until it gets to the point where the amount of torque it takes to turn the pinion is between 15-25 in. Lbs. lbs to I have searched and searched and found varying information. Technical Contributor: Offline: Age: 35. I found out today after they installed the pinion seal the torque measured on the pinion jumped to 35 in-lbs. the actual torque applied to the nut is in the 150+ft/lb range. Start tightening the pinion nut towards 200 Ft. It must be torqued to a certain resistance, as the That front pinion nut has a very large torque range and it's not for getting the nut tight, it's for setting your bearing pre-load. The pinion shaft seal is leaking badly, but our manual doesn't really say how to torque the nut after replacment of the seal. New Bearings: 1. Don't overtighten. Pinion. So once the pinion nut is snugged up with no play left, you slowly and carefully continue to tighten the pinion nut until you get to the specified inch pounds of torque that it takes to turn the pinion gear. 67 c10, 292, 12 bolt rear differential. If the rotating torque measurement is below 1. Pinion preload is the amount of torque it takes to turn the pinion ONLY, with the carrier removed. Over tightening pinion nut can cause issues with the differential, so accuracy is crucial. ). With a torque wrench and Flange Wrench C-3281 tighten the pinion nut to 285 Nm The pinion rotating torque should be: Original Bearings: 1 to 2 Nm (10 to 20 inch lbs. So we can use the wrench to spin the whole pinion and measure the effort it takes to keep it moving. the pinion nut should be torqued to produce a rolling resistance of somewhere between 6-10 inch pounds (used bearings, new bearings are different), if the nut is torqued to a set value of say 145 ftlbs and the rolling The torque reading on the pinion nut corresponds to a resulting clamping force against the bearings. This is without The torque of the nut puts preload on the pinion bearings-- to loose, or to tight, will damage the bearings and ring/pinion gears. You use a impact to jam the nut down a little at a time to get the bearing load. Thread starter old guys rule; Start date May 23, 2024; May 23, 2024 #1 old guys rule FBBO Gold Member. Is a NO NO?? He didn't use a torque wrench, but after doing a little searching here Some time in 2008 polaris changed to the nyloc pinion nut and every year after that the 800 2 and 4 seat have the nyloc nut Even some of the steel nuts are not holding torque because Polaris/Spicer didn't put loc tite on the nut so over time it's loosing torque like on the ranger models but it's not coming off like our rzr models The problem is, to correctly get the preload set, you have to measure the torque at the pinion. ) The pinion rotating torque should be: ² Original Bearings: 1 to 3 N·m (10 to 20 in. Use old pinion nut to set preload using new solid spacer and shims (might take a few tries) getting preload to approx. Going from the specs out of the old Performance American Style book, I Have a question about the torque on the pinion nut. Once the nut pulls the inner and outer pinion bearings together on to the crush sleeve, it will go from about 50-60lbs of torque needed to turn the nut to about 350-400lbs, that is when the crush sleeve starts to "crush" and that is ALL your trying to avoid. I have to qualify the pinion preload on the new gears. m (10-20 lb in) for used bearings, or 1. The pinion nut needs to be replaced or Loktite applied to the old nut. 0-2. They then reshimmed the solid spacer so it I used an 1/4" inch-lb torque wrench with two adapters and a 1 1/16" socket to check the preload. When you torque down on that nut you are crushing the crush sleeve, which sets the distance between the two pinion bearings. 7-3. Torque to 240 FT/LBS and call it a day. Not been fun trying to figure out what size that nut is. Either something is binding, or the pre-load was not set correctly in the first place. The amount of torque is measured in bearing preload. From the pics, it looks like all he did was replace the seal. 75" Rear End Torque Specs All specs are lbs-ft, unless noted Bearing Cap Bolts 90 Ring Gear Bolts 55 Pinion Flange Nut:. 3 N. A later XJ factory manual from a friend says torque the pinion shaft nut to 160 ft lbs, test torque, new bearings 15 to 35 inch pounds, used bearings 10 to 20 inch pounds. If preload torque or rotating torque is exceeded a new collapsible spacer must be installed. Post Reply. is 15-25 in. I have 21 in/lbs rotational. It has the nitro gears, tjm locker and solid spacer. ) The pinion nut needs to be replaced or Loktite applied to the old nut. To maintain proper contact, the thickness of About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright The pinion nut is going to be much tighter than 75lb. I stopped by the shop and they had the pinion installed at 25 in-lbs and 180 torque on the pinion nut. Save Share Reply Quote Like. ) CAUTION: Never loosen pinion gear nut to decrease pinion gear bearing rotating torque and never exceed specified preload torque. If you are using your old bearings the torque spec. I've followed section 35-350 closely and without trouble up to the point of tightening the new pinion nut. 25" 15 to 25 in-lbs. I only got about 100 lbs of torque on the pinion nut before I hit the proper depth. Supporting Member. The procedure is different for used bearings, and more-complicated for an assembled axle, but it still Pinion nut torque Thread starter R. I used a 3/4 drive breaker bar 'Larger Dave' is giving you the Rotational Pre-Load for the pinion. Most of them, however, ar 1/4 drive. Reply. If its too loose like I said you get slop in the bearings and in the worse case, play between Sig by Torque. I used a big cheater pipe and a dewalt electric impact wrench (345 ft lbs of torque) granted I may not be in the best position to do this job since Im doing it Page 47 describes setting the pinion nut torque to 200-220 ft lbs and the torque-to-rotate should be 20-40 in lbs. Step 2: Secure a Tight Fit. Dana 44 rear. I did it in the driveway last time I did it but you need the proper torque Simply torqueing the pinion nut to 200 ft-lbs is NOT the correct method to set the pinion bearing preload. Tighten pinion nut to obtain the torque reading obtained in disassembly plus 5 inch lbs. If you use a brand new nut every time as your supposed to it can take more than 125 lbs' to turn the thing up the pinion let alone tighten it down. If you over torque that clamping force is greater than the bearings can tolerate and over time they will wear faster than if you had proper preload. " torque wrench to check the rolling torque. You can do this by hand with an impact, if you have one. Tighten the pinion nut, in small increments, as needed, until the torque required in order to rotate the pinion is between 1. Possible Cause #2: Worn carrier or pinion bearings can create excessive Have a quick question regarding the nut for the pinion. Then you use an inch-pound torque wrench to set the bearing pre load. My concern is that I possibly over tightened the nut. Do some searching to get the specific details and precedure for setting it correctly. Tips and https://www. 2 pounds pulling on the torque wrench 1999 - 2016 Super Duty - Pinion Preload Sterling 10. So tighten the nut right up to where it gets difficult, then take a torque reading with an inch pound torque wrench. Use a press to ensure proper installation. That is zero movement up, down, side to side, fwd and back. Tighten nut minutely to avoid overtightening the nut because you can't loosen and retighten the nut. The nut is tightened gradually in small steps, and then the rotating torque for the gear is checked with a dial-type (NOT a click-type) torque wrench. Turn the pinion nut with the torque wrench and see how much torque it takes to turn the pinion, BY ITSELF. Check torque required to keep yoke spinning several roatations with an inch lb torque wrench. ² New Bearings: 2 to 5 N·m (15 to 35 in. The local stores didn't have anything that fit and I spent a few bucks to figure that out. I was watching my mechanic do the job. Advice about changing the rear pinion seal on the Duramax 3500, and some tools needed. It must be torqued to a certain resistance, as the pinion is rotated. If the pointer shows too little inch lb resistance that tells me to tighten the nut more to reach the proper resistance when it comes to bearing preload. Original shims behind rear/inner pinion bearing race and on pinion shaft. You turn the pinion nut until the pinion preload torque is in spec. 170 Large. 10 in-lbs (using old bearings) without seal or carrier installed and using 125 ft-lbs of torque on the pinion nut (since I'm using the solid spacer and shims, and this is what they call out for pinion nut How does one reinstall and tighten the pinion nut on a 12 bolt rear after replacing the pinion seal? I know that when the pinion gear is first installed - the pinion nut should be tightened until the pinion requires approximately 25 in. Use an old pinion nut that's still in good shape to check the preload!Once that is set install a new nut and loctite it! I just installed a new pinion seal on my front diff that I had built from Just differentials. The reason for pre-load is to keep the pinion and ring gears in alignment no matter what the incoming torque is from the driveshaft. I searched already and don't find a minimum torque for the FRONT pinion nut. The reason why it's so hard to turn the pinion nut is because not only are you crushing the crush collar but you're also pressing the outer pinion bearing onto the pinion gear. 5 - Hi All, First time here. I replaced the entire axle assembly on my 2001 250 SD 4X4. You have to chrush the collar until you can acheive 14-19 in lbs You can also make small adjustments to the bearing preload by increasing the amount of torque on the pinion nut. AMC Nut Joined: Apr/27/2009 Location: New Mexico Status: Offline Points: 382 Post Options. Is there a proper way to do this. 8. 7 N. First off, the torque for the pinion nut is totally on the 'rolling torque'. It's possible you either have over tightened it and the crush sleeve is junk and you are out of threads if you can't turn the nut by hand. as in how tight the nut is. walks you through how easy it is to use his Pinion Nut Socket t A carrier break is the point where the numeric increase in gear ratio necessitates a new/different carrier be used. My guess is 30 to 35 pounds at least. The reason why it's so hard to turn the pinion nut is because not only are you crushing the crush collar but you're also pressing Rotational torque is the amount of torque that needs to be applied to the pinion nut in order to rotate the pinion (and the ring gear, etc. Meaning air impact. My original nut is stuck in a socket lol Would this new nut with a washer integrated be a suitable replacement? Part number: Omix-Ada 16584. Joined Dec 16, 2018 Messages 4,094 Location Kenai. 25?). The turning torque should change very little if at all until all the slack is taken up, if you back the pinion nut off 1-2 turns and take a turning torque reading, this will tell you roughly how much you need to add to your new/used turning torque specs to account for the differential carrier and axles being installed, 3-6 lb-in would be a I replaced the rear axle pinion nut on my 02 ram with the corporate 9 axle (9. That means using two adapters to get the wrench(1/4 dr. Too much preload and you destroy the Torque wrench sold here https://amzn. to/3MCu5ldI am an amazon affiliate, so purchasing through the links I provide supports the channel with a small referral The D44 uses shims to set the pinion bearing pre-load, so no matter how tight you make the pinion nut, it should have the correct pre-load. Report Post Thanks(0) Quote Reply Topic: AMC 20 pinion torque Posted: Aug/09/2016 at 1:47pm: I have made a solid spacer to take place of the crush sleeve. You will need a "torque to rotate" torque wrench. Start date Jun 1, 2008; This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and The pinion nut was loose so i tightened it i wrenched on that bitch for an hour and a half. In my opinion crush sleeves shuold not be reused unless you absolutely have to. I use a really friggin big pipe wrench around the yoke to hold it, and a torque wrench on the nut. You tighten a little and see if the pinion moves in and out. What you need to measure is the total torque to rotate. When it begins to get seriously tight then you are getting close. Some manufacturers recommend about 125 foot pounds of torque on the nut, but I usually go for closer to 200 foot pounds. The torque value should be checked before the pinion nut is backed off and if the value is greater than 8 in/lbs, that value should be noted and re-established when the system is reinstalled. The pinion nut does not have a torque spec. lbs. Swapped gears. Then use a new pinion nut and torque to proper bearing load. 5 uses a crush sleave to set the pinion preload instead of shims like a dana, so the amount of torque required on the pinion nut can vary. Put your nut-bolt combination on top of the pinion gear nut. Step 7. I do not have the specs. If you haven't aready disassembled the pinion nut, take a preload reading in the present state (don't change anything that will affect this, like removing an axle after you take the reading and What are you guys using to hold your pinion yoke when tightening down the pinion nut? I'm thinking of making a long wrench using about a 5' length of heavywall square tubing, with two peices of heavy flatbar on the end, welded 90 degrees to the bar and drilled to mate with the yoke strap bolts. m (10 lb in) for used bearings, or 1. K. ps. Torque to 240 FT/LBS, and call it a day. You need to get the crush sleeve down (if its new) and once you have where the sleeve will 'crush', you need to tighten the nut a little bit at a time and use an "inch-lbs. Does anyone know the torque spec for the pinion nut? Edit: before anyone asks, I called JT and they said “rattle gun it” as tight as possible. Even though it is a solid spacer you will be surprised by how much the preload changes by increasing the torque The 741 uses shims to set pinion brg prelaod and pinion depth. Posted: Mon Apr 21, 2014 1:47 pm . I have tried using a long socket wrench + a breaker bar as well as using the long socket wrench in combination with a bottle jack, as you see in the photo. Use an old pinion nut that's still in good shape to check the preload!Once that is set install a new nut and loctite it! Install flange washer and a new nut on pinion and tighten pinion nut until there is zero end-play. ft. Is this true and if so what is rotational torque? My best guess is with the rear in the air you spin the rear tires with the torque wrench on the pinion nut and the wheels should spin with 8-15 ft pounds on the torque wrench. This is some hard tightening (cheater bars, elbow grease). What I normally do is mark the relationship between the pinion nut and the pinion shaft before disassemby, then torque the nut until the marks line up when reassembling. It's not like a dana set up where you use shims to set the preload and the torque on the nut is always the same value (175 ft/lbs for a D60 if I remember correctly). The pinion nut is a locking nut ( distorted thread type ) designed to NOT loosen so you cant use a torque spec. When you first put the pinion nut on (if you haven't removed the pinion), it will take practically no torque (effort) to turn the pinion. That is if you did not remove the pinion bearings and change shims. The act of increasing the numerical ratio of a gear set results in the diameter of the pinion gear becoming smaller. I had blue loctite on the nut threads. The extra drag you feel is axles, carrier, drums, shoes, etc. lowbrowcustoms. They say to only tighten the pinion shaft nut enough to take out the slack. Find a matching pair of nuts and bolts that aligns with the size of your pinion gear nut. Also, make sure that the thread of your bolt matches with the pinion gear nut as well. The best I can tell you is to raise both the rear wheels off the ground and remove both the rear wheels, then make sure the brakes aren't dragging. chevelles. Did that front and rear. 742. To little and bearings could move, gear alignment will suffer etc. Discover more answers. Local time 12:19 AM Joined Sep 14, 2016 Messages 1,456 Reaction score 508 The Sterling 10. They are crush nuts and wont back off for nothing (typically). Top Profile ; TimmyA Post subject: Re: Torque setting for pinion nut on El Falcon. Must use a dial torque wrench not a click style. resistance of the pinion by itself after there is some amount of "squeeze" put on the bearing from tightening the pinion nut. Just because your Any torque wrench that will measure in inch lb. When reinstalling the pinion nut, use a torque wrench to tighten it to the manufacturer’s specified torque. It says, as shown in the image, to tighten it slowly until reaching the turning torque measured with a small torque wrench before beginning the job. It took 10 turns to take the nut out but now Im only at 8 and 1/8 turn and I cant turn it any longer. Also, you should NOT reuse the same crush collar if so equipped (GM differentials). From the manual: With a torque wrench tighten the nut to 285 N·m (210 ft. /lbs. Torque it to 240 ft lbs but keep turning the pinion as you torque it and if it gets to tight to turn stop and add shims. com/collections/fast-eddy-coChris Graves, creator of Fast Eddy Co. The Sterling 10. Quote xspiriment. Either way, the nut should be tightened to produce 24-32-in-lb of torque to turn the pinion gear with a new bearing. I have read that it get 8-15 Ft pounds of rotational torque. Tighten the pinion nut a little at a time it doesn't take much to over do it and crush the sleeve too far. com/forums/33ums/33-transmission It can be kind of a pain when the axle is still in the vehicle. Run the nut on with the impact and keep going until there is zero movement in the flange. The large shim under the pinion inner brg on the pinion is used to set pinion depth. The amount you tighten the nut (with or without the crush sleeve) is based on the amount of force measured in inch pounds it takes to rotate the pinion. I also Loktite a new nut as they are prone to loosen. . 12 bolt pinion nut torque value (seal change) Jump to Latest I marked the old nut and took a rotational torque measurement with the axles pulled but carrier installed. When changing a ring & pinion and doing final install of pinion there is no torque spec on the pinion nut itself. 240 Chrysler Differential The torque spec is NOT for the pinion nut itself; it's for the pinion gear bearings. If you are using new bearings the torque spec. (You use your beam style torque wrench on the pinion nut and see how much torque it goes up to to get the rear end to start turning) Tighten the nut to 285 N·m (210 ft. Our 2003 Lincoln Town Car had a leaking pinion seal - so was time to replace. Again, tighten a little and recheck how much torque it takes to move the pinion. Install the Pinion Bearing: Once you achieve the correct pinion depth, you can now press the pinion bearing onto the pinion shaft. 741 120 Tapered Pinion. May 21, 2023 #2 There is no torque spec. The torque sequence will then have to be repeated. 10 gears (see thread here: https://www. Pinion crush sleeves deform as designed and are generally considered single use and is why you may need to torque the pinion nut past the witness mark you made. and he took off the nut with an air gun, popped out the seal, cleaned up the inside, put the new seal in and got the gun and put back on the nut. 7 to 4 Nm (15 to 35 inch lbs. 63 f100. Make sure the size matches as precisely as possible. Specs I've seen are 160-200 ft/lbs for nut torque and in/lb for preload ranging from 15 for used bearings, or 13-30 for new bearings. that how i would do it. I measured the depth of the pinion shaft to the yoke before and after seal install. I use an old style pointer inch lb torque wrench to rotate the pinion by the nut and watching the pointer on the torque wrench for the proper preload. Are you replaceing the pinion seal-? They say to only tighten the pinion shaft nut enough to take out the slack. Do NOT torque the nut to 200lb ft, there is a crush sleeve in there and if you torque the nut to much it crush to far and ruin the bearings. Changing rear pinion flange yoke on 8 3/4 with 742 case with 1 7/8" pinion all new parts what would be the torque on the pinion nut? I know it has the pinion shims and not the crush sleeve. For tightening the nut, yes your Dana 35 has a crush sleeve but in my personal opinion and what was recommended to me by Tom Wood years ago when I was replacing my previous TJ's Dana 35 yoke is to just torque that nut to 165-180 ft-lbs. Thanks . 250 foot pounds is a lot of torque! If you're wondering how to calculate the torque wrench setting: - 44" from pinion nut to middle of torque wrench handle - 24" long torque wrench (socket center to middle of handle) - 250 ft-lb desired X 12 inches/foot = 3000 inch-pounds - 3000 inch-pounds / 44 inches = 68. about right? The running torque value is the most important. What is the torque setting for the pinion nut on El Falcon 1998 that has a squash spacer. 15/16 or so) that fits the pinion nut. You ahve to buy a new in that case. Lastly if the pinion nut torque required to reach correct preload is less than 180Nm then the crush sleeve should be replaced. ) to fit the socket(1/2 dr. x3, Easier in the Many mechanics use an impact gun while others insist the nut should be torqued by hand. place on the yoke for referance and go ahead and dissaseamble and replace the seal then when you reasemble tighten your pinion nut like and 1/8th of a turn past your mark and that should be tight enough and you should still have pinion barring preload. m (15 lb in) for new bearings, continue to tighten the pinion nut. Blackjack Evil Winch Doctor. Can’t I retorque the new nut till I get back to the 21 in lbs rotational Or should I reinstall the old nut with lock tite and set back at the mark? Must use a new pinion nut. The torque on the nut should not affect how Pinion Preload (New) Pinion Preload (Reused) Ring Gear Backlash Ring Gear Bolt Torque Carrier Bearing Cap Bolts ; AAM 9. If it takes more than 25 in lbs to turn the pinion, then you have tightened it too much and you need to back the nut off. The smaller shims that go on the pinion collar are used to set preload. I pulled the driveshaft loose at the rear yoke only to find that there is a 12point nut on the yoke. This does jot apply to my type of set up, no crush washer C. I'm in the middle of changing the pinion seal on a replacement differential I bought for my wagon. Is 40 to 45 Ft. I use a 3/4 inch combination wrench about 10+ inches long, and I am not weak. to turn. There’s a difference between the amount of torque applied to the pinion nut to get it tighter during installation and the measurement in inch/pounds of the force required to keep the pinion nut rotating once you get it to move in I have Dana 44 rear axles with crush sleeves, I was wondering how to torque the pinion nut? And to what torque spec. 04 It fits just fine, however just wanted to make sure before i torque down. replace the U-joint like you said. When tighetening the pinion nut, we are checking rotational torque, not the actual tighteness of the nut. You tighten a little and see if the pinion I just finally got around to replacing my leaky pinion yoke on my used 12-bolt with 4. m (15 While the torque value on the pinion nut is important, the critical setting related to the nut torque is the rolling resistance of the pinion shaft bearings. Pinion nut torque. That's how much force it takes to rotate the pinion shaft and the factory spec is 10-20 inch-lbs. Too much bearing preload will quickly overheat and c You have to tighten until the sleeve starts to crush/play is out of the pinion. You can find many guides on YouTube for this, but not many that go over Facto I used an 1/4" inch-lb torque wrench with two adapters and a 1 1/16" socket to check the preload. FBBO Gold Member. If not done correctly you can easily destroy your rear axle. I slipped the tapered pinion on with some lube, a Jim's pinion stop tool, and tightened it up to well over twentyfive I suspect. If you’re performing maintenance or replacing the pinion seal, complete the necessary tasks before reassembling the components. What happens if pinion depth is wrong? Again, you’ll need to determine the proper spacing by using a pinion depth setting tool to ensure proper installation. It's not like a dana set up where you use shims to set the preload Trying to remove the pinion nut to replace a leaking front pinion seal. the problem was that the pinion yoke was the round style and I have the ujoint / strap style so I had to change the yoke. From the manual: With a torque wrench tighten the nut to While tightening the pinion nut, the crush sleeve compresses to allow the bearings to preload slightly. Pinion Bearing Preload Torque Wrench A pinion bearing preload torque wrench is a specialized tool that is used to apply the correct amount of torque to a pinion nut, in order to achieve the correct preload on the bearings. I installed the original yoke from my truck, used the That's how much force it takes to rotate the pinion shaft and the factory spec is 10-20 inch-lbs. 0 N. The actual torque required to achieve that preload will vary dependant on the rear end condition and set-up. Step 8. Reinstall the Companion Flange Start tightening the pinion nut towards 200 Ft. The turning torque is measured when just the pinion is in place without the carrier. (note make sure the pinion bearing is well oiled when doing this procedure. The torque of the nut puts preload on the pinion bearings-- to loose, or to tight, will damage the bearings and ring/pinion gears. The upside is you won't need the extra tool to hold the pinion flange, you just need a large torque wrench (which you should have used to torque the pinion nut). Dave 03 2500HD ccsb 4x4 AFE intake and filter Edge Juice w/ attitude 4" exhaust 6" CST lift 35 The other way of doing it is going to be removing the diff cover, remove the pinion shaft bolt, remove the pinion shaft, remove C clips, remove axles, remove carrier caps, remove carrier, remove pinion and replace crush sleeve, replace pinion and torque the pinion nut to specs for used bearings and then replace everything else the way you took Technically this is exposed to be done with no carrier in the rear. 489. that low will work. Pinion preload is a very small amount of torque SOURCE: I need the torque specs. and check the rotation torque, If the preload starts tightening up too early or too late, compared to the nut torque, adjust the shims. is 10-20 in. Generally speaking to much preload will overheat and destroy the bearings. This is why we use a beam or dial type. 10 to 20 in-lbs. 4 N. Remove pinion seal. uaih scex bzylbe coj aukk jiyl qhlxrcy qdnh fppivra qtojjy irt muqz snzr hwfcwan ceqm