OK, a buddy of mine who was a RAM dealer tech told me to monitor my rear ujoints.

They are the nongreaseable types.

I have a two-piece rear driveshaft, and it is all steel.

I will take the rear shaft out to inspect the joints and carrier bearing.

I want to have all new joints on hand; I like the greasable units, preferably the zerk in the cap and not at the center of the cross, as it's a more robust unit.

I will pull out the driveshaft and move all joints on both axes and feel for any lumpiness.

I get so many variations when looking these up.

I am assuming all three will be the same part.

Has anyone else done these?

Can you confirm?

And is your driveshaft steel or aluminum?

When I got the truck, I went under it and was surprised at how many parts were not painted, so I sprayed all the bare metal parts with a case of Krylon black.

I was told in other forums my driveshaft was aluminum by the resident dick swingers.

I explain rust is a form of oxidation associated with steel.