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Old 09-03-2017, 11:08 PM   #1
ACK
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Shock Torque Specs Confirmation

Was reassembling and torquing down the rear suspension on the C10 and just can't get over the torque specs for the shocks ... 130-150 ft. lb. for the upper eye and 55-75 ft. lb. for the lower. The upper mounts were pinching the heck out of the bushings and I still had a ways to go, so I stopped and moved on because it just didn't feel right. I know they're book torque specs, but would feel better if I heard from others confirming they ratchet down that much on the shocks.
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Old 09-04-2017, 06:45 AM   #2
The Rocknrod
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Re: Shock Torque Specs Confirmation

http://www.chuckschevytruckpages.com...que_specs.html
Ya that does "seem" rather high but thats what the chassis torque specs show.
1/2" grade 8 fasteners torque at 90 foot pounds and 5/8" grade 8 are 159/180 ft lbs. So I guess they're using the 5/8 size fasteners?
Maybe someone in engineering can assist.

Last edited by The Rocknrod; 09-04-2017 at 07:28 AM.
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Old 09-04-2017, 07:43 AM   #3
PGSigns
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Re: Shock Torque Specs Confirmation

I think that spec is for the big nut on the back side of the upper shock mount stud and no the nut that goes on the shock end.
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Old 09-04-2017, 09:01 PM   #4
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Re: Shock Torque Specs Confirmation

Thanks for the replies. I started cranking down to spec and it looked so bad I backed off and tightened all to 45 ft. lb. I did a little reading and it appears there's 2 bushing styles and I'm pondering if the previous owner installed shocks with the non-stock style bushing, hence the brackets pinching like heck.
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Old 09-04-2017, 10:53 PM   #5
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Re: Shock Torque Specs Confirmation

Quote:
Originally Posted by The Rocknrod View Post
http://www.chuckschevytruckpages.com...que_specs.html
Ya that does "seem" rather high but thats what the chassis torque specs show.
1/2" grade 8 fasteners torque at 90 foot pounds and 5/8" grade 8 are 159/180 ft lbs. So I guess they're using the 5/8 size fasteners?
Maybe someone in engineering can assist.
Yep i guess the torque is so high because of the bolt size.
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