Hubs interchangeable from 1/2 ton to 3/4 ton?

[stallion85]

Hubs interchangeable from 1/2 ton to 3/4 ton? Is this true? I got a line on a whole D44 I am going to grab for some spare parts for Moab and was wondering if I could use the hubs too.

Thanks

 

[big83chevy4x4]

the lockouts will, but the bearing hub will not as the 1/2 ton are 6 lug and the 3/4 ton ... blah blah

 

[TrcksR4ME]

There are two versions, big bearing and small bearing. Not sure if the spindles are different as well on those models, but they may be.

 

[divorced]

There are two versions, big bearing and small bearing. Not sure if the spindles are different as well on those models, but they may be.

small bearing hub = small bearing spindle
large bearing hub = large bearing spindle

I'm not sure if there is any rule on how to tell what size bearings the spindle has without disassembling it, but I have noticed that all of the ~pre-76 D44's with flat top knuckles I have taken apart came with the small bearing spindles, and the non-flat top knuckle D44's and all 10 bolts had the large bearing spindles. This is just what I have noticed from the dozen or so I have owned, so it may mean nothing at all.

 

[stallion85]

It has flat tops on it and I believe it is from a 75. Hmmm, oh well.....at least the shafts will do me some good. I could probably sell those flat tops for and just buy some hubs

 

[divorced]

I would take it apart and check it for sure, GM did some strange things back then. If you can't tell the difference, just post up a pic of the spindle.

 

[Beast388]

small bearing hub = small bearing spindle
large bearing hub = large bearing spindle

I'm not sure if there is any rule on how to tell what size bearings the spindle has without disassembling it, but I have noticed that all of the ~pre-76 D44's with flat top knuckles I have taken apart came with the small bearing spindles, and the non-flat top knuckle D44's and all 10 bolts had the large bearing spindles. This is just what I have noticed from the dozen or so I have owned, so it may mean nothing at all.

That has been my experience as well. Here is a pic of the 2 types of spindles for reference.

The large one is on the right.

 

[stallion85]

took me a minute to see the difference, but I see it now.....thanks Beast

 

[bigjbear]

the lockouts will, but the bearing hub will not as the 1/2 ton are 6 lug and the 3/4 ton ... blah blah

...if they are both internal spline.