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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Feb 2000 Posts: 5,213 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 5,213 | I am running a 75 Trans Am rear axle in my 37. I also used 2" wider rear fenders. I don't think I needed the fenders wider but it does look better to me. I have seem some trucks with the tire right at the edge of the fender, I like them to fit under it a little. The axle width was the same as I took out. It had a 55 Chevy axle under when I bought the truck. I just cut off the spring perches and welded them to the new TA axle.
You can us a 70-78 Firebird/Camero axle, some even had rear disk if you can find one. I had mine mounted and bed on before I figured out the tires weren't centered in the fender. I never thought to move axle back, I allready had the driveshaft made. I ended up cutting the running boards back about 3/4" and moving the fenders forward.
The above post is right on, on the angles. Its really easy to do using a cheap angle finder. Try Harbor frieght, they have one that works OK for little money.
Talk to the brake people about what master cylinder to use. I ended up with a 68-72 Mustage manual disk/drum unit. It has a 1" bore. I had to install a adjustable proportioning valve in the rear brake line to keep from locking up rear tires to easy. I also have the Camero type disk's up front. Joe | | |
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