I just picked up a 73' CJ5 with no engine, tranny, or t-case. In bringing it back to life I want to use the stock Dana 30 and Dana 44 axles, but I am not sure which is the best direction to head regarding engine/powertrain. I like the idea of a Ford 302/T18 combo; however, I am wondering if this may be a bit much for the stock axles (especially with lockers)? My other line of thought is to keep it simple and go with a later model 4.0L with a stock or common tranny/t-case combo. I would like to run 33's when I have it put together. Depending on tranny/t-case combo, I am wondering if I can keep the stock 3.73 diffs? or does stepping up to the 33's commit me to atleast 4.11's regardless of tranny/t-case?
This is my first jeep, and I'm looking to build a reliable rig that can hit some moderate trails. I feel I have a huge opportunity here given that I have "clean slate" to start with. Thanks for any constructive input.
I have the 304, T18a tranny and the dana 300 TC with the stock dana 30 and 44 axles w/lockers. The 3.73 with 33 would be okay, I have 35's and I went with 4.27 gears.ust didn't want to go up to the 4.56 due to the small pinion gear for the 30. But my set-up works pretty good. Hope that helps
Thanks for the feedback. Should I shy away from a solid locker, such as a Detroit? I figured I would address the 3.73 gears once I got it on the road to see how it felt in low range and where the speedometer tops out. Looking for a set-up that can pull 55 mph on the highway, not much more. I have a trailer for any longer trips.
Considering I have no tranny or t-case either, are there any advantages to going with a more recent 4.0, in terms of available parts, ease of install, etc.?
I was thinking in terms of the mounting and/or fabrication required to support an engine/tranny conversion, vs installation of a newer "jeep" product. If both would require similar fabrication and/or conversion hardware, then I would lean towards the 302 conversion. If a 4.0 can be a simple "bolt in" installation project, then I might lean that way, knowing I would need to upgrade some wiring for the EFI.