Front and Rear Shock Torque Specs needed.
Thread Starter
Burning Brakes
Joined: Jun 2014
Posts: 799
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From: Landenberg PA
Front and Rear Shock Torque Specs needed.
Hi folks, going to change out my shocks in the next few days. Does anyone have the torque specs for the upper and lower bolts for both the front and rear. Thanks in Advance.
Race Director
Joined: Apr 2007
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From: South Western Ontario
https://www.corvetteforum.com/forums...ar-shocks.html
Post #16. The info is fairly easy to find with a small amount of effort.
Post #16. The info is fairly easy to find with a small amount of effort.
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This might help you out with torque numbers on various C5 parts.
Le Mans Master
Joined: Feb 2012
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From: OK
FYI...
There is still some controversy, but from everything I can find on the research I've done... the REAR LOWER shock bolt torque spec is WRONG on that sheet... NOT 162 ft lbs...
Bill Curlee used 100 lbs of torque for his Rear Lower shock bolts... I figured if Bill was comfortable with that so was I, so that's the one I used. Many rear lower shock bolts have been busted trying to reach the 162 ft lbs...
Copied from a GM service manual bulletin
1997 - 2005 Chevrolet Corvette 2004 - 2005 Cadillac XLR Lower Rear Shock Attaching Bolt May Break After Torqued
.
.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in the PI.
Condition/Concern:
The rear shock lower attaching bolt may break when tighten to the proper torque of 162 ft lbs (220 +/- 40 N/m) after being removed for service.
.
Recommendation/Instructions:
Anytime the rear lower shock bolt is removed for service. Replace the shock attaching bolt with part number: 14048990 and Nut with part number: 11516383. The bolts are torqued to yield and are one time use only. Torque the bolt to the new torque of 107 ft lbs (145 +/- 10 N/m) as opposed to the current released torque of 162 ft lbs (220 +/- 40 N/m) in SI2000.
Note: When tighten the new bolt to factory spec, The nut must be held secure and the torque should be applied to the bolt head only.
.
Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
.
There is still some controversy, but from everything I can find on the research I've done... the REAR LOWER shock bolt torque spec is WRONG on that sheet... NOT 162 ft lbs...
Bill Curlee used 100 lbs of torque for his Rear Lower shock bolts... I figured if Bill was comfortable with that so was I, so that's the one I used. Many rear lower shock bolts have been busted trying to reach the 162 ft lbs...
Copied from a GM service manual bulletin
1997 - 2005 Chevrolet Corvette 2004 - 2005 Cadillac XLR Lower Rear Shock Attaching Bolt May Break After Torqued
.
.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in the PI.
Condition/Concern:
The rear shock lower attaching bolt may break when tighten to the proper torque of 162 ft lbs (220 +/- 40 N/m) after being removed for service.
.
Recommendation/Instructions:
Anytime the rear lower shock bolt is removed for service. Replace the shock attaching bolt with part number: 14048990 and Nut with part number: 11516383. The bolts are torqued to yield and are one time use only. Torque the bolt to the new torque of 107 ft lbs (145 +/- 10 N/m) as opposed to the current released torque of 162 ft lbs (220 +/- 40 N/m) in SI2000.
Note: When tighten the new bolt to factory spec, The nut must be held secure and the torque should be applied to the bolt head only.
.
Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
.
Last edited by 73Corvette; Sep 11, 2015 at 09:40 AM.
Administrator
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From: In a parallel universe. Currently own 2014 Stingray Coupe.
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St. Jude Donor '03 thru '26
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
That is good to know. Thanks for the update.
