<VV> Late axle retaining bolt

[BobHelt at aol.com]

In a message dated 12/15/2005 9:41:55 AM US Mountain Standard Time,  
mmcguire at hiwaay.net writes:

Are you  guys sure of using that lower torque???????

Engineering wise, let me  tell you the torque is for much more than keeping 
the 
fastener from  backing off.  It's to keep the bolt from seeing as high of an  
Osclitory stress and breaking in fatigue.  I'd use the factory  torque-unless 
it's definatly a typo.   For a Grade 8 3/8-16 bolt  dry 375 in-lbs and 330 in-
lbs lubed.  Per MSFC-STD-486 REV B.   That's a tension torque.



Michael



Yes. The shop manuals are not clear on this spec. In act it really is not  so 
specified. I have also personally checked the breakaway torque on two  
different stock and unmolested diffs and found that torque to be 30 lb-ft.
Regards,
Bob Helt