I used the 3.08 rear from under a '73 Chevelle wagon under my '55 1st Suburban. The GVW of the wagon was within a hundred pounds of the Suburban, so I figured the capacity and brakes would be okay.

At the same time I installed front disk brakes using a kit designed around 70's GM mid-size parts so I can ask for '73 Chevelle stuff at the parts counter.

I also swapped to a dual master, again using '73 Chevelle, and used the combination valve from that same car. I figured the weight distribution of the wagon compared to my suburban would be similar enough that it would work, and now almost four years later I'd say I was right. Not sure it would work as well on a pickup.


1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble...