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-   -   Worried about control arm shaft torque (https://67-72chevytrucks.com/vboard/showthread.php?t=680420)

BamaDave 08-25-2015 11:00 PM

Worried about control arm shaft torque
 
I put new poly bushings in. Installed the control arms and now I am torquing the shaft nuts. 115 upper & lower. Does that sound right? Pass side looked good. Driver side upper has me concerned. When I got them to 115, the nuts were hardly touching the bushings, I mean I could spin them around the shaft. What gives?

chrismoore701 08-26-2015 07:33 AM

Re: Worried about control arm shaft torque
 
I could be wrong on this, but tighten the back nuts and then the front, then torque

BamaDave 08-26-2015 08:26 AM

Re: Worried about control arm shaft torque
 
I don't see how that would matter seeing how I have them mounted on the truck. I did not torque them while they were off. Maybe someone else will chim in.

BamaDave 08-26-2015 12:35 PM

Re: Worried about control arm shaft torque
 
Anyone?

RodsGreen10 08-26-2015 01:40 PM

Re: Worried about control arm shaft torque
 
Quote:

Originally Posted by BamaDave (Post 7287983)
I put new poly bushings in. Installed the control arms and now I am torquing the shaft nuts. 115 upper & lower. Does that sound right? Pass side looked good. Driver side upper has me concerned. When I got them to 115, the nuts were hardly touching the bushings, I mean I could spin them around the shaft. What gives?

Shaft nuts are 75 ft lbs.
Control arm bushings are 115 ft lbs
Lower control arm shaft u bolts 80 ft lbs
That is per GM Torque Specs.

tinydb84 08-26-2015 07:51 PM

Re: Worried about control arm shaft torque
 
I had to trim my poly bushings about 1/16'' to get the washers to touch the bushing when torqued down properly. Don't go to far or you will crush the bushing and clamp down on the arm.


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