Ive never rebuilt one yet, but it looks pretty basic. So I guess my first stop is finding seals and gaskets. I usely buy my stuff from Randys R &P but want to explore all my options.

Its out of an 83

Save your money, and just buy a good used one.

i am pretty sure marlin said the kits is like 150$
and you can expect to pay close to that fora good used one

Im thinking about putting some marlin 4:7's in it while I have it apart.

I have alot of used case laying around. The reason I want to go into the case is to gain the knowledge of taking it apart and putting it back together plus it needs seals anyways. Its the only thing left on the truck that I havent gone through

If you're gonna put 4.7's in it, then another option is to
buy one from Marlin, already re-built. Let his shop do
the work. The gears and re-built kit will put the cost
pretty close to that, anyway.
Thats what I did 7 years ago. No problems with it since.

Originally posted by Dennis Bart
Im thinking about putting some marlin 4:7's in it while I have it apart.

Well Shit when you put in 4.7's you damn near rebuild the whole front hi/low box. Just make sure the 4wd components in the rear of the case are in good shape. You get alot of bearings when you put in the 4.7's.