My truck is a 1983 4X4, the axle code on the inside front passenger fender tag is HF38 with automatic hubs.
The parts truck is a 1985 4X4, the axle code on the inside front passenger fender tag is CA41 that someone installed manual locking hubs...
I knew that the CA41 was a Salisbury differential from some of the posts made on this site and my HF38 wasn't... I assumed that I could swap in the entire 1985 Diff, axles, hubs, and brakes over to my 1983. If your saying that I'm opening a can of worms; then I'm glad to hear it now before I go get that parts truck!
And my understanding was that my HF38 signified .3889 gears and the CA41 (CA was for Salisbury) (41 was for .411, or .410)?
So talk me away from the edge Mike, before I trailer the 1985 home in the morning.