freight train

Hi fellow 1st genners. I am buying up a few spare parts for when we need them for our trucks. I have a question. When I look up the correct part # for either a Timken or National carrier bearing kit I see two different sizes. A 1.38" and a 1.57". Does anyone know if our 1st gens use all the same size or are they different from a 1989 to 1993 trucks. My 1992 W350 CC has one but so does my dads 1991 D250. Would the lighter duty D250 take the smaller or all take the same size? If so which size is it? Thanks

samiam4

I think all D70's are the same. But manuals D250's had D60's.


Michael

freight train

Sam I wasn't clear, my fault here. I am referring to the center support bearing on the driveshaft. Not in the rear end.

jerseybud

Its the big one, 1.5. My 93 used that one- pretty sure all the diesels got the big one

freight train

Thanks Bud.