https://www.dieseltruckresource.com/forums/ Discuss conversions here. For instance, if you want to put a REAL engine in a FORD, this is where you would talk about it! en Wed, 20 May 2026 08:21:03 GMT vBulletin 60 https://www.dieseltruckresource.com/forums/images/misc/rss.jpg https://www.dieseltruckresource.com/forums/ https://www.dieseltruckresource.com/forums/cummins-conversions-157/transmission-question-337094/ Tue, 19 May 2026 20:15:46 GMT I recently swapped a 1990 12v cummings with Torqueflite 727 2wd into my 1972 Chevy K10 4x4 with NP205 transfer case. I want to keep the 4wd and NP205 transfer case. What all do I need to mate these 2... I recently swapped a 1990 12v cummings with Torqueflite 727 2wd into my 1972 Chevy K10 4x4 with NP205 transfer case. I want to keep the 4wd and NP205 transfer case. What all do I need to mate these 2 together? i read i need a coupler with the different spline threads and a 4x4 tail shaft. Is that all i need and does anyone know where to buy these parts? Any info or help would be appreciated. Thanks ]]> Cummins Conversions 12vK10 https://www.dieseltruckresource.com/forums/cummins-conversions-157/transmission-question-337094/