I'm finishing up the rebuild of my NP 205. Thanks to the pages from Yukon, and parts from National Drivetrain. Oh, I hope you don't need an adaptor for your 350TH to Np205. I had oil leaking from my NP 205, so I pulled it expecting only to spend $125 on new berring and seal kit. The adaptor was severely cracked around the berring on T-case side. I tried to repair it, but the crack got worse as I heated the cast iron to accept welding. A new unit was located a a chevy dealer for $345

. I should have everything back together by the end of the weekend.