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Well I searched and I searched and I searched and did quotes and + signs and all the rest. I cannot find torque values anywhere here. I need them for the u-joint on the front of the 4wd shaft... For a 2001 ZR2.
Well THAT didn't work! Snapped off one of the bolts! The same web site calls for 65 lbs. for the pinion yoke. Doesn't make any sense to me. I got the bolt out but now need to tighten up the yoke. SO CAN SOMEONE POINT ME TO THE TORQUE VALUES???
Here is the best I could come up with closest to your application: 2004 S-series Front Axle Torque Specs
As far as reinstalling the pinion yoke, there isn't a torque value used there to my knowledge... That nut sets the preload on the pinion bearings inside the case and is only tightened to reach a rotational torque of 3-5 in-lb with new bearings for this particular front differential assembly (no ring gear installed). If you removed it without noting the number of threads and marking both the nut and the shaft for correct realignment when reinstalled, you'll be flat out guessing to put it back together. Good luck!
If you plan on keeping the vehicle, doing your own repairs, and do not want to be at the behest of other people for such information...perhaps you may want to invest in a set of factory service manuals or a subscription to any one of a number of online subscription information services (Mitchell1, AllDataDIY, etc.) if you cannot find an economical FSM set. I have been a long time user of AllDataDIY, but have just moved one of my lapsed subscriptions over to the Mitchell1 service to give it a try and already like their DTC layout much better.
While I can understand that you are in a bind, please understand that no one is paid to be here. Also understand that there are rules that everyone must abide by and that everyone agreed to when they joined. Please re-familiarize yourself with them.
Yeah, I get all that. Both the technical info. you provided and the ethical comment. Am looking for shop manuals but sort of had this little crisis I needed to deal with. Would have gone to a mechanic but they are a minimum of 2 weeks out so SOL on that. I did the best I could. Unfortunately I took the yoke off w/o understanding about the pre-load torque so that is why I was pleading for help. Once I had a better understanding of the whole thing I calmed down. Fortunately for me I have a second front end so I could spin the pinion and get a rough idea of the torque in a complete unit. So I did the best I could to apply that value to the one in my rig. Waiting for new strap bolts for the u-joint now. Just for SAG I added a photo of all the tools I needed to accomplish my original task which was to simply grease the joint....
This will give you a good estimate on which load not to exceed. Still the manufacturer may apply even less torque i.e. high grade bolts in an aluminium case or with conical or wave washers which take care of the neccessary tension.
Carefully read the table headers and figure if in-lbs or ft-lbs are to be applied.
Yeah, I wouldn't consider 55 ft lbs on a bolt that size if you are talking bout the four little ones that hold the U-joint in place. I can't even wing a torque value for them because I generally only use a torque wrench inside a motor and maybe on heads and very few other places. Clean bolts, a touch of blue loctite then the experienced gut-n-tite torque works for me.
Torque
