This on an 83 W150 shaft that goes from the transfer case to the front differential. I need the two U joints that go on the transfer case end of the shaft. The caps on the joints are two different sizes, on pair being slightly larger diameter than the other. Does anyone know where I can get them? If you have a part number that would be awesome.

 

Take one into the parts store with you, they should be able to match 'em up.

 

The garage has had at least eight different joints, all wrong. Not helped by a little miscommunication/misunderstanding between the mechanic and the shop manager. We think we’re onto the right ones now.

 

you likely need to measure the caps or holes and order universal joints as needed. you can compare them with the sizes on rockauto. i would say if you can't find them find a good driveline shop and they will find them for you even if it needs a combination joint with 2 different sizes. worst case scenario it looks like rockauto has a complete front driveshaft but it is a tiny bit on the expensive side
https://www.rockauto.com/en/catalog/...ive+shaft,2308

 

Those should be Chevy 3R ujoints.... Since it's a Saginaw CV that dodge used. I've changed joints in many.

Edit: caps should be the same size (1-1/8" IIRC) and inside clip. If not all the same size cups, I'd be concerned something is worn.

 

Dana/spicer used to have site that you could enter a vehicle and it would tell you every joint on it. This is all they have now.

 

The 3R and S44 are synonymous. The S44 shows up in the link.