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-   -   Pinion set up help (https://67-72chevytrucks.com/vboard/showthread.php?t=732284)

ratfreak8871 03-08-2017 11:30 PM

Pinion set up help
 
Overtightened my pinion nut to 35in./lbs. Should I run it, replace it, or back it off to 25in./lbs, and run it???

Dc42d76 03-09-2017 12:53 AM

Re: Pinion set up help
 
Pinion nut does not tighten to 24 inch lbs . 24-32 inch lbs is the force needed to turn the pinion after it is tightened. New crush sleeve ? Old crush sleeve ?

ratfreak8871 03-09-2017 01:09 AM

Re: Pinion set up help
 
New sleeve bearings everything. Found spec on this all over the place anywhere from 12 - 29 in. Should I take it back to 35?

ratfreak8871 03-09-2017 02:09 AM

Re: Pinion set up help
 
Yes that's what I'm getting at,

homemade87 03-09-2017 08:23 AM

Re: Pinion set up help
 
Its not preferable to back off the pinion nut once you have gone to far . 35in lbs may be ok on a new bearing . If it is an old bearing I would start over for sure . But if new bearing I would back it off to 30in lbs and you should be fine . If you back it off to much the bearing will become loose and not have the proper pressure to keep it seated . If too much it will damage the bearing .

MikeB 03-09-2017 12:37 PM

Re: Pinion set up help
 
New crush sleeves are cheap. You can also get a set of shims instead, which is what I plan to use next time. More user friendly and not affected by pinion nut torque. These are for 8.5" 10-bolt.

https://www.ringpinion.com/b2c/Produ...px?ProdID=8280

https://static.summitracing.com/glob...a-55048_ml.jpg

Port&PolishMan 05-15-2017 07:19 PM

Re: Pinion set up help
 
Quote:

Originally Posted by homemade87 (Post 7880635)
Its not preferable to back off the pinion nut once you have gone to far . 35in lbs may be ok on a new bearing . If it is an old bearing I would start over for sure . But if new bearing I would back it off to 30in lbs and you should be fine . If you back it off to much the bearing will become loose and not have the proper pressure to keep it seated . If too much it will damage the bearing .

Dam'd If Ya _Do and Dam'd If ya Don't ? __ _ WTH

OK - Next Up - what the H are these Guys doing - First Video . .

https://youtu.be/OwrH2kBoyhw

Second Video - I able to Actually Follow what this Guy is Doing . .

https://youtu.be/OwrH2kBoyhw

Learn How to &^&%$&$ Communicate . .

homemade87 05-16-2017 07:15 AM

Re: Pinion set up help
 
Quote:

Originally Posted by Port&PolishMan (Post 7943560)
Dam'd If Ya _Do and Dam'd If ya Don't ? __ _ WTH

OK - Next Up - what the H are these Guys doing - First Video . .

https://youtu.be/OwrH2kBoyhw

Second Video - I able to Actually Follow what this Guy is Doing . .

https://youtu.be/OwrH2kBoyhw

Learn How to &^&%$&$ Communicate . .

Both the links to the videos are of the same video . But what he is doing is torquing the nut to crush the sleeve . Video is not complete info at all . Once the slack is out and the bearings start to seat is when you get preload . At this point you measure for drag and sneak up on it . Video stops short of this .


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