The Stovebolt Site Forums The Shop Area Name that part ... Rear Axle out of 1954 3800 Panel

I’m trying to figure out what axle this is. It’s on my 1954 Chevy Panel 3800. It has 8 lugs.

Eaton ho 52 3/4 ton or ho 72 1ton they are basically the same, depending on single or dual tires.

The casting number on the differential carrier "3682126" cross references to GM Part# 3682125. That carrier number was used for 1946-52 3600 and 3800 Chevy rear axle differentials and similar GMC 150 and 250 Models. To identify the actual axle details, please provide the stamped identification letters/numbers located along the top center of the carrier as shown in the attached 1954 Shop manual picture. That info will help to further identify the axle.

But ... for all intents and purposes, as Lumbersawyer says .... same axle used for 'late 47 through '72 on 3/4 and 1-tons. The '68 - '72s have an optional 4.11 gear set in the 3rd member that's a direct bolt in replacement. Look for a '68 - '72 3/4-ton with coil springs and automatic tranny. The other good news is that the later Bendix brakes will bolt right up to replace the Huck brakes. But you'll need everything from the backing plates out, including the backing plates. Might as well just get the whole axle assembly. Then, sell your 5.56 gear set to a rock crawler and make your money back.

See ourTech Tip for all the deets:

Thank you all for the help. I confirmed it is an Eaton HO72. Getting the wheel bearing spring clip out was very tough. I ended up using vice grips and a pry bar.