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Old 09-13-2021, 11:20 PM   #11
kipps
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Join Date: Jul 2014
Location: North-central Virginia
Posts: 1,099
Re: Cummins conversion questions

Quote:
Originally Posted by Wildstreak View Post
the truck its going into is a 88 3+3 1ton 4x4, it has a 454 th400 np205. I found a kit to adapt the np205 to the nv4500 from advanced adapters. Im just starting to piece everything together.
Be aware that your Cummins nv4500 has a different output shaft(29-spline) than a GM nv4500(32-spline).

Another option to consider is to find a transfer case from a first-gen Cummins truck(pre-1994). Those were a passenger side drop, and should bolt right up to your transmission.
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1987 C6P V20 truck, 2010 LMG 5.3, AFM delete, 2010 Camaro exhaust manifolds, 1997 nv4500, 1991 np241c, hydroboost, 2005 14bff axle & driveshaft, drop-n-lock gooseneck, 4.10 gears, stock suspension, rims, and tires. Still a work in progress. Any questions or suggestions are welcome!
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