What axles came under a '80 model 250 crewcab 4x4? Where can someone find info. if they have VIN #? Thanks for any help! Steve

The rear axle will be a D60 the front axle depends on the GVWR. The light duty GVWR will have a D44 while the heavy duty will have a D60. both will have 4.10 gears.

would there be a 60 under a 2wd crew cab as well?

spline count too please!
what trucks came with 30 spline FF D60's and which came with the 35 spline FF D60s?

All the 3/4 ton trucks used a D60 rear axle reguardless of whether 2wd or 4wd. All of them I have seen have been 30 spline.

cool. I found one locally the yard wants $200 for it.
One of these days I'm gonna walk in with $150 cash and see what happens.
It's complete, still on the truck and looking pristene.
For $200, maybe I can get him to throw in the wheels.
Is there much for converting this thing to 6 bolt?
If so, I know I have to stick with the standard 30 spline inner
but I can go 35 spline outer right? Using 14 bolt parts...
All I've found is for front conversions..