Ok, here's the setup. '73 K5 350/TH350/NP203. Just had the tranny rebuilt. Was slipping real bad in 3rd on the highway or at speeds 55 and over, for a length of time. Never slipped at lo speeds or in "lo range". The tranny fluid smelled like a local brush fire (very burnt), so I had the tranny rebuilt. Never looked at the T-Case, but prolly should have. After getting it back from the shop, it still slips on the highway in 3rd gear, but I am suspecting the t-case because it also slams both driveshafts when you put it in gear, and wont turn front/rear shafts equally in lo-loc. Does this sound like the T-case is bad? Or do I still have a tranny problem? I cant image in the tranny is bad after rebuild... I cant afford a doubler or a NP205 swap. I also like having full-time 4WD. And how much would u guys pay for a used NP203 that is "said" to be good, from '78?