The u-joints on the DJ had a tad of play in them but moved well and didn’t seem to cause any problems. I had to remove the driveshaft since I am currently working on the transmission and decided to rebuild the u-joints with new grease.

Well the little play in the u-joints was cause the end caps are missing some of the rollers for the bearings! What is also weird about these u-joints is they are internal clipped instead of external clipped like ever previous jeep driveshaft I have worked on.

Both u-joints are different. One end has a 429 stamping and the other is USA 4 – 3. Maybe that last one is some sort of soccer score? ;) Googling 429 u-joint the Moog 429 pops up but that part does not match the physical dimensions of this 429 u-joint.

These u-joints don’t match up with the typical 1310 style u-joints you see on Jeep driveshafts and there are no part catalogs for the DJ-5G to tell us what the cross parts are for these. So we are going to need to measure everything.

Inner locking area is around 2.1″ wide.

End caps are around 1.079″ in diameter.

End cap to End cap span is in the 3.2″ range.

This website has a good list of different u-joints by size. I would love to find a more comprehensive list if someone knows where I can find one.

Doge 7260 is the only u-joint that comes close to the measurements. Thats 2.125″ inner lock and 1.078″ cap diameter.

Dana Spicer 5-3228X is the u-joint I ordered. This has the grease insert in the cap which makes greasing easy. The ones with the grease insert on the cross or spider part is always a PITA to get grease in… doesn’t get broken by rocks tho!

While waiting for the u-joints. I wire-wheeled the slip yoke and driveshaft and gave it a coat of everyone’s favorite rust-oleum semi-gloss black. Turns everything into a new old stock part!

Then the u-joints arrived.

They look the part and measure up the same. Lets press them in!

That driveshaft is way to nice for this rusty jeep!