Jeep 1:Used to have a 93 YJ 2.5l- 3.5" Black Diamond, Chevy TBI 5.7l V8, SM 465 4 speed, 8.8 rear( 4.10, L/S), rhinoline, Mile Marker 9000, NP 231, Had to sell it due to college
Jeep 2: 89/91 YJ, 4BT Cummins, NV4500, NP 231, Old Man Emu 2.5" suspension lift, 1" body lift.....Runs and drives, but very much a project
Interned at Novak Conversions 2 summers ago
04Xmatt, that thing looks sweet. I wanted to do this swap until the only 4bt I could get were new ones for 3500. Not the route I could go with so I ended up getting a rebuilt 304 I'm planning on dropping in this summer. I would like you to keep us updated on how it runs on the HWY and off road with that heart transplant. One thing folks never seem to do. It helps us that want to do it get more asskicking into doing it...
__________________ In a world full of copy cats, be an original...
A Fine Example of Needless Government Spending
Originally Posted by berserker
Sometimes it a good idea to pull a vacuum hose before the wife rides in it--you can tell her you need a new ____ and once you get your new ____ you can reconnect the hose. :)
84 Cj 7 w/ 4-Banger, 4.5" BDS lift, 1/2 Trans Drop, Twin Stick, 32" Tire, Front Aussie Locker, No Sound System Yet, No Armor, Warn 8274 Not Installed, Webber Carb Upgrade, Luckycheese Ing. Upgrade...
Really nice looking build. Do you still own/drive it? If so, how are you liking it?
A question: I have heard some say that a 4-speed is not a good match, especially for highway driving. How do you find it to be? I have an 83 CJ7 with a T-176/Dana30 that I was thinking about mating to a 4BT that I just bought. I was hoping it could be a bolt for bolt swap as my 4BT is a Ford style. I too have the AMC20 stock rear end. What would you do different now, looking back?
Well my 4bt CJ is just about done. Just waiting on a few more minor parts to show up. Been driving around and pretty much all the bugs are worked out of it. Specs are as follows..
105hp Cummins 4bt
SM465 4 speed
Aluminum radiator with dual electric fans
4inch suspension lift
1 inch body lift
yj roll bar
Black rock wheels
Has dana 30 and amc 20 with 4.10s for now. New axles are in the works.
Few pics of build
That is a Really good looking Jeep. I have my 4bt swap done and have been driving mine around and love it. I had the T150 and dana 20 behind my 4bt for about 8 months but even with the 3.54 gears the T150 wasnt cutting it for Highway speeds at 2500 RPMs i was at about 68 mph. I ended up selling the Chevy adapter plate and flywheel for 950 bucks and bought a ford adapter play and flywheel for 500 and installed a ZF5/dana 300. much better with the low first gear and the OD.
Did you use the fluid filled mounts or the flat rubber ones? I used the Rubber ones and the vibrations are harsh and I am thinking about changing to the Fluid filled mounts.
Cummins 3.9 4bt
Spring Over Axle
The rest is stock. Once I manage to break the AMC 20 I have a Ford 9 Inch to install. I have a Big list of more to do to it like once I have all the kinks out I will finish up the skid plate and put a Traction bar on it.