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1972K20 · 03-23-2016, 09:51 PM

I'm in the process of getting parts for a 12V Cummins/4L80e/NP205 build. I'm planning on using a 2wd version of the 4L80E because I've read it's easier to adapt a NP205 to the 2wd 4L80E because of the output shaft. The Cummins will be stock, but I want the trans to hold up to towing occasionally. When I have the 4L80E rebuilt, I'd like to do some upgrades. I'd like to do it myself, but I don't think I can. What up-grades would you recommend? Do you know of any reputable shops in Alabama that could do this kind of work? Would you recommend someone that has never rebuilt a transmission to try rebuilding a 4L80E?

03-23-2016, 09:51 PM	#69
1972K20 Registered User Join Date: Nov 2010 Location: Alabama Posts: 739	Re: 4L80E & TH400 Tech. I'm in the process of getting parts for a 12V Cummins/4L80e/NP205 build. I'm planning on using a 2wd version of the 4L80E because I've read it's easier to adapt a NP205 to the 2wd 4L80E because of the output shaft. The Cummins will be stock, but I want the trans to hold up to towing occasionally. When I have the 4L80E rebuilt, I'd like to do some upgrades. I'd like to do it myself, but I don't think I can. What up-grades would you recommend? Do you know of any reputable shops in Alabama that could do this kind of work? Would you recommend someone that has never rebuilt a transmission to try rebuilding a 4L80E?