12 bolt torque arm pictures
Thread Starter
Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
12 bolt torque arm pictures
Before installing my fresh 4l60e I took some pictures for those interested in my straight axle setup. I am utilizing a torque arm similar to an F-body. The torque arm and transmission mounts are connected to a birdcage in the inside console connecting the outside framerails to a bar running in front of the seats to two bars connecting the rollbars. Unfortunately the computer storing the interior pictures died and took the pictures with it. The console now covers the birdcage. This is strong enough to support the car if a jack was placed on the mounts.
Thread Starter
Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
It is like a long ladder bar. My fabricator friend did spend a lot of time at the drawing board figuring out center of gravity and roll centers and other stuff I have no clue about. In the first picture shown is a zerk fitting on the bottom front of the torque arm that services a hardened sliding shaft so the arm won't bind during rear suspension movements. The reason he chose this approach is because he thought a 4 link suspension would have such short arm lengths that it would be difficult to get the weight transfer of the torque arm without chopping up the car. In essence, when the tires plant, the front of the differential wants to go up. This force is transferred to the belly of the car via the torque arm which lifts the front of the car and transfers weight to the rear tires. There are other C4s out there with 4 links that work really well, so obviously this is just one approach. Here is a picture of weight transfer.
Last edited by 383vett; Dec 9, 2012 at 11:18 PM.
Melting Slicks
Joined: Sep 2003
Posts: 2,270
Likes: 118
From: N. Babylon NY
Cool car Willie!
I purchased a Strange 9" with alum center for my 92. Just waiting to get it in the shop. I too have a friend who will be setting it up. As of now I am going with a Triangluated 4 link with no locator. I am hoping it will still handle well. The other option will be a Watts Linkage.
When I get it started I will post photos.
Regards,
Steve
I purchased a Strange 9" with alum center for my 92. Just waiting to get it in the shop. I too have a friend who will be setting it up. As of now I am going with a Triangluated 4 link with no locator. I am hoping it will still handle well. The other option will be a Watts Linkage.
When I get it started I will post photos.
Regards,
Steve
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Thread Starter
Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
Cool car Willie!
I purchased a Strange 9" with alum center for my 92. Just waiting to get it in the shop. I too have a friend who will be setting it up. As of now I am going with a Triangluated 4 link with no locator. I am hoping it will still handle well. The other option will be a Watts Linkage.
When I get it started I will post photos.
Regards,
Steve
I purchased a Strange 9" with alum center for my 92. Just waiting to get it in the shop. I too have a friend who will be setting it up. As of now I am going with a Triangluated 4 link with no locator. I am hoping it will still handle well. The other option will be a Watts Linkage.
When I get it started I will post photos.
Regards,
Steve
Safety Car
Joined: Sep 2010
Posts: 3,752
Likes: 190
From: Indiana PA
Wow, cool setup. Very well designed and thought out. Its neat that it is hidden inside the console. Sounds like you got a good chassis fab guy. Obviously you've been running this setup without failure and its proven.
Gotta love it.
Gotta love it.
Thread Starter
Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
Safety Car
Joined: Sep 2010
Posts: 3,752
Likes: 190
From: Indiana PA
Melting Slicks
Joined: Jul 2003
Posts: 2,284
Likes: 4
From: Canton MI
Looks good , A short 4-link set will work fine they are just a bit more sensitive to adjustments . The links on my car are on the short side but i was able to pull a 1.26 60foot with my SBC .
