Torque Spec
Thread Starter
Burning Brakes
Joined: Mar 2019
Posts: 843
Likes: 149
From: Iowa
Torque Spec
I am getting ready to tackle putting in my new Super Pro Bushing kit, I was looking up torque specs for all of the locations that I will be working on and no spec showed up for the Two large nuts on the Upper Control Arm, I downloaded Corvette Centrals replacement guide and it states that GM never intended for these bushings to be replaced. So I am asking for advice from C4 forum members who have tackled this job.
Thank You
Hawkeye56
Thank You
Hawkeye56
Pro
Joined: Sep 2019
Posts: 716
Likes: 135
From: Buchanan, Michigan
I am getting ready to tackle putting in my new Super Pro Bushing kit, I was looking up torque specs for all of the locations that I will be working on and no spec showed up for the Two large nuts on the Upper Control Arm, I downloaded Corvette Centrals replacement guide and it states that GM never intended for these bushings to be replaced. So I am asking for advice from C4 forum members who have tackled this job.
Thank You
Hawkeye56
Thank You
Hawkeye56
Thread Starter
Burning Brakes
Joined: Mar 2019
Posts: 843
Likes: 149
From: Iowa
Thank you for your advice, But from what I have read the lock nut is red lock title and you have to heat the nut up to remove, So I do not know if what you suggest would work. I am afraid that I would get a false reading.
Thanks Hawkeye56
Thanks Hawkeye56
Le Mans Master
Joined: Aug 2017
Posts: 6,937
Likes: 1,487
From: New Jersey
I used 40 on mine for the front upper large nuts. That came from corvette central... it is only an aluminum piece. And that loctite is strong. I couldn't get it with a breaker and needed my impact. Passenger side was worse than driver for some reason.
Link to article
Link to article
Last edited by 84 4+3; Mar 9, 2021 at 12:58 PM.
Thread Starter
Burning Brakes
Joined: Mar 2019
Posts: 843
Likes: 149
From: Iowa
I used 40 on mine for the front upper large nuts. That came from corvette central... it is only an aluminum piece. And that loctite is strong. I couldn't get it with a breaker and needed my impact. Passenger side was worse than driver for some reason.
Link to article
Link to article
Thanks Hawkeye56
Le Mans Master
Joined: Aug 2017
Posts: 6,937
Likes: 1,487
From: New Jersey
the original is aluminum actually. The shaft that goes through the middle that locates the 2 bushings that is. The nuts may be steel but it wasn't very tight once it broke free.
Thread Starter
Burning Brakes
Joined: Mar 2019
Posts: 843
Likes: 149
From: Iowa
Thank You for the information
Hawkeye56
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Le Mans Master
Joined: Aug 2017
Posts: 6,937
Likes: 1,487
From: New Jersey
It is the only spec not listed in any GM book to the best of my knowledge. It was considered a non service part to the base of anything I could find and the assembly was sold complete in my research. I will tell you it is tough aluminum. I broke several case hardened self tappers and bits trying to fix a screw up. IIrc it is both forged and heat treated so it is pretty tough.The ride tech one is more reputable for sure. Glad they agree.
Thread Starter
Burning Brakes
Joined: Mar 2019
Posts: 843
Likes: 149
From: Iowa
All good. It is the only spec not listed in any GM book to the best of my knowledge. It was considered a non service part to the base of anything I could find and the assembly was sold complete in my research. I will tell you it is tough aluminum. I broke several case hardened self tappers and bits trying to fix a screw up. IIrc it is both forged and heat treated so it is pretty tough.
The ride tech one is more reputable for sure. Glad they agree.
It is the only spec not listed in any GM book to the best of my knowledge. It was considered a non service part to the base of anything I could find and the assembly was sold complete in my research. I will tell you it is tough aluminum. I broke several case hardened self tappers and bits trying to fix a screw up. IIrc it is both forged and heat treated so it is pretty tough.The ride tech one is more reputable for sure. Glad they agree.
👍