Guys...I just did a 700R4 conversion and have been led directly to a transfer case problem. I've been trying to eliminate noise from typical wear, hence swapping my (literally crumbling) 3 speed tranny for the R4, however, my transfer case is hurt. The guy who helped me with the conversion has offered to sell me a used one for $125, but it's from a 73, I own a 70 fj40 and am wondering if it'll even work, or if I should just bite the bullet and rebuild the thing. If I decide to rebuild, any experience on how much that costs and who sells the best kits? Thanks for the help, I'm almost done with this job!!