BackDraft U Joints

[FST FOX]

I am replacing my U joints, now my back U-Joint broke and while I have this Driveshaft out I am going to replace the front as well, the local parts guy seemed lost with out an exact vehicle to look up, so does anyone have part #'s for these U joints

[Cashburn]

They are right on the joint.

[Rwillia4]

You can actually put a stronger sealed u-joint in the front that doesn't need grease. I think it is a Chevy. The back can't be changed to a larger one because of the back flange is small to fit the rear diff.

There is probably a fix for the rear flange also because the rear flange does not fit the rear diff correctly (the centering diameters are different sizes).