Cummins 4BT Powered: 1997 Jeep Wrangler TJ

The 2nd generation of the Jeep Wrangler was known as the “TJ” and it was built from 1997 through 2006. This is probably the best year you can get for a car, if you ask the luddites around the DT HQ — it is new enough to have safety features like seat belts and ABS, but old enough to not have insane electronic integration (CANbus taillights…yeah…that’ll be easy to fix in 20 years) and touchscreen climate control. This next example has been further guaranteed to survive the apocalypse by having a Cummins 4BT inline-4 turbo diesel installed in the front. It won’t be fast, but it’ll torque all day long. Find this 1997 Jeep Wrangler TJ offered for $18000 in Phoenix, AZ via craigslist. Tip from Rock On!

From the seller:

1997 jeep wrangler tj
condition: excellent
cylinders: other
drive: 4wd
fuel: diesel
odometer: 120000
paint color: red
size: mid-size
title status: rebuilt
transmission: manual
type: offroad
1997 Jeep Wrangler TJ Salvage title due to theft. Stolen and stripped.
Conversion to 4bt cummins turbo diesel.
The 4bt is out of a 1994 Freighliner service vehicle.
This 4bt utilizes the coveted “P” pump that allows for all current high performance modifications. It is huge.
All engine front accessories use the fixtures off a 5.9L cummins diesel (dodge 3500 series truck).
Bell housing and clutch are the same as used on a 5.9 cummins engine.
The clutch has a life time warranty from Autozone.
A/C compressor is one used on a 1984 Jeep CJ.
Belt is a: gates XL-11A1170 7460.


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There is a four (4) inch front lift.
Front axle is a Dana 30 with a Detroit Tru-Trac.
Front axle gear ratio is: 4:11
The front brakes are dual piston calipers off of a 1999 Jeep Cherokee
The front rotors concentric drilled to fit hubs that are 5 on 4-1/2 (the cherokee is 5 on 5 so redrilling is necessary for bigger rotor).
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The rear has a 3 (three) inch lift.
Rear axle is a Dana 44 with a ARB air locker.
Rear gear ratio is: 4:11
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Transmission is a NV 4500HD with a chevrolet 5th gear. giving a 44% overdrive.
Transmission output is from a gas NV 3500.
Transfer case is a New Process 231
T-case has had the slip yoke eliminated.
T-case has double sprags installed to handle torque and their source is from a
New Process 241 “C” unit.

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