Click for Coverage
  • JP Magazine
  • Dirt Sports + Off-Road
  • 4-Wheel & Off-Road
  • Four Wheeler

Heavy-Duty Jeep Drivetrain

Posted in Project Vehicles on January 23, 2014 Comment (0)
Share this

Oh yea, oldschool baby! So 12…15 years ago adding a doubler from an NP203 to some other heavy duty T-case was a pretty hot set up. This was the poor man’s heavy-duty way to add more gearing to long wheelbase rigs. Back in 2003 or so I drove from Durham, North Carolina, to Roanoke, Virginia, to get this Dodge NP203 lowrange box. The plan at the time was to adapt it behind a NV3500 and infront of a NP231 in a ’01 XJ that I was building at the time. As you probably know plans change and projects get sold. Fast forward 10 year or so and somehow I am still lugging this Dodge NP203 range box around when an idea for a new Jeep build went from an idea to a collection of parts. Since buying the NP203 range box it had spent time in my parents garage of back in Durham. I then drug it to Southeast Ohio where it took up space in another garage for several years. In 2009 the NP203 went from Ohio to Arizona where a few more years resting on concrete. Finally a few weeks ago the NP203 finally went from large dirty, greasy, dusty, space sucking boat anchor to being part of an upcoming project I am working on. Thanks to Off Road Designs ( the well traveled NP203 range box has a new home between a Chevy NP205 (with a new 32-spline input) and a Dodge NP435. Anyways I am out of town, but desperately want to get back to wrenching on this project so I’ve been drooling over pictures of it until I can get back to it. Yea, it’s oldschool. Yea, it’s tough and heavy, but the best part is even though its old school, running an NP203 range box as a doubler is still cheap and it also still works.


We've got videos! From mud to the beach, we have more coverage than most of the girls we shoot. Enjoy our dirt every day lifestyle and motto! Let's Go Watch The Videos!

Connect With Us

Newsletter Sign Up

Subscribe to the Magazine

Sponsored Links

Browse Articles By Vehicle

See Results