The Stovebolt Site Forums The Shop Area Engine Shop Need info on ....1 ton rear ends with floater hubs ? ? ?

I'm kinda swinging in the dark. I was wondering if anyone knows about the axles and hubs on a 1 ton rear end from 1957 on up ? Are they all the same ? What years interchange etc. ? Thanks for your patience, Willis

If you stick with the 10 bolt, axles will interchange from 48 to 72. But you have to use the correct length, which varied. I know that you can cheat on the length a little, I learned that from an older junkyard man.

Hubs are another story and are dependant on bearing size. I think an interchange manual would be a good place to start.

Like Fred said, the Eaton H0xx series axle started with the 47.2 trucks and kept going through 72. There were several gear ratios and widths available, parts should be relatively easy to find at your local Napa or Car Quest. The internals of the carrier changed slightly around 63 or 64. Search for Eaton axle on here, everything you can want to know has been covered (except whether the later finned brake drums are the same size as the earlier smooth drums...I'd like to know that myself).

Thanks guys ! I'm new to this site and I am impresssed with the quick replies.

I do know that the no spin rear end availible in the later ones is very tough.
Also that a certain size
(I think it was 11.5 inch)
brake drums used on certain 4x4 models are almost inpossible to find

The Detroit Locker unit (sold by GM as an option, I think they called it NoSpin) was available as an aftermarket part, too. I have one in a 4.57 differential, it's going to be installed in my 4.10 open pumpkin. It's the only one I've ever seen on eBay in four years of looking - but I got it for the opening bid. From what I understand, the DLs will work in any of the 47-72 Eaton H0xx differentials.

I used to use the latter model drums on those by haveing the holes drilled out & use the latter larger studs.

Wrenchbender,
could you please give us some details? What years with what drums? This sounds like one of those hints that money can't buy!

Actually the 1946 DR 3/4 ton and DS 1 tons used the full floating eaton axle complete with 8 lug wheels and were the first trucks to use the forthcoming advance design hubcaps

I used to get the equivelant size drum from 77 up. The single rear wheels were 13X2 1/2. Than get the new studs to match & drill the holes in the hub to allow them to be pressed in. I used to have the machine shop I traded with do it but a guy could do it himself with the right size drill bit & a drill press. You will need new lug nuts because they are a larger size. The wheels fit fine.

I am going to swap an Eaton under my truck.

Currently I am taking it apart to convert to disc brakes, using brackets for a 14 bolt.

Also, if you can't find a No-Spin (Detroit) for these the 14 bolt detroit locker WILL fit inside the carrier, but you will have to use 14 bolt axle shafts to match (30 vs 17 splines).
The ring gear is like 10.25", a little smaller than the 14 bolt.