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  1. JEEP YJ, CJ and TJ and Universal 4BT Engine Mounts!!

    Vendor Showcase
    FarmStrongInc If you are looking for quality American made off road parts and custom fabrication services at a reasonable price, you have come to the right place! Farm Strong Inc. was founded by a hard working American guy who is committed to providing quality products backed by friendly...
  2. Stock Jeep Auto transmission

    Transmission, Adapter, Transfercase Discussion
    Hey guys I'm researching to do a 4bt swap into my 97 wrangler and I am looking for the cheapest auto trans option. I currently have a stock 4.0L I6 TJ with the 32rh trans that has a recent rebuild on it. Is it possible to keep my stock transmission behind a 130 hp-145 hp rated 4bt? It would...
  3. Hello from Teaxs

    Personal Introductions
    Hi all, I am new to the 4bt world but not to diesels, I am a mechanic by trade. I have years of experience with Cat's, EMD's, Wartsila's and Cummins. I own a Jeep Wrangler that I am wanting to add some power to. I was interested in Bruiser Conversions but thought to myself why not save the...
  4. OM617 to 99 TJ Wrangle HELP!

    Mercedes OM617 & Variants
    Hello everyone, I'm new here for now but am in the process of creating a build thread for my 1999 TJ Wrangler I'm swapping an om617 mercedes diesel into. I have all the pictures together and description but wont be posting until it's complete. Anywho, I am stuck right now though.. When I...
  5. 2002 Jeep Wrangler 4bt swap

    Other Engine Swaps
    Hey yall. This is my first post on the site, as i just made my account. I have a 2002 Jeep Wrangler TJ with a 4.0 straight 6 on it with about 174,xxx miles total. Me and a bunch of guys at my church are planning to go crazy on it. I'm funding the whole deal because it's mine, but they all...
  6. Need help

    General Discussion
    Hello I am new to this site as a member but I have been here many times. I have been given 2 4bt engines and I intend to put them in my 92 Jeep Wrangle. All I have is the engines and everything needed to make them run. I have no adapters or other drive train pieces. I was wondering what...
  7. 4bt wrangler tranny help!!!

    Transmission, Adapter, Transfercase Discussion
    I need some help/opinions... Im restoring my old jeep that had been totaled and am swapping the 4.0L for a 4bt. My plan is to use it to tow my toys around. Id like an automatic... Is the Allison 1000 a good option? does the allison 545 adapter work with it? Some people iv talked to say yes and...
  8. 4 BT Custom designed motor mounts

    General Classifieds
    Fellas, Let me introduce myself, my name is TJ Legel, I graduated Penn State with an MET degree in May. For my senior project I designed motor mounts for a 4bt into a Jeep YJ swap. My swap Thread can be seen below...
  9. Jeep YJ 4bta

    Buildup Showcase Threads - All Engines, Vehicles
    Hello all, So i know this isn't the ideal build thread seeing that i have completed it almost a year ago, but i feel i have knowledge now that i can share with others, so i will do a write up. Currently i have the 4bt in my jeep yj with the ax-15 np231 and dana 35 rear, dana 30 front. I am more...
  10. 3/4 Ton Dodge Jeep YJ with a 4bt

    Buildup Showcase Threads - All Engines, Vehicles
    Just like the title sounds! I am using all the drivetrain out of a 1994 dodge diesel to build my jeep. I started off with a stock 1990 YJ and gutted the drivetrain. I currently have the dana 60 front and 70 rear mocked up with the 4bt, 47rh auto, and NP241 mated and begging to go in. :D
  11. Suspension/Steering thoughts

    General Discussion
    I swapped a dana44 from a 88 wagoneer into my 97 wrangler. Everything looks great except for 3 things. The track bar I ordered seems to be too short. I have about 6" of lift on the jeep. The track bar I ordered is adjustable. But it doesn't adjust out far enough. Here's a link...
  12. 4BT Conversion Parts for a Jeep Wrangler TJ

    General Discussion
    Does anyone know of a place that sells conversion parts to swap a Cummins 4BT into a Jeep Wrangler TJ? I am in the process of purchasing a bread truck with the 3.9 Cummins and I will soon be needing all the custom conversion parts (motor mounts, etc.) for the swap. Any info (websites, prices...
  13. hey, hope some one can help

    General Discussion
    hi, i have 1991 jeep wrangler with a 350 chevy and th400 trans right now. i am look to maybe do a diesel swap. i was originally gunna do a 4bt swap, but have found out about 4bd1t and t2 and a whole bunch of other stuff that i have no idea about. also a lot trans cuz i guess a three speed with...
  14. Anyone know where to find a cummins 4bt?

    General Discussion
    Hi I'm looking to swap a 3.9 liter cummins into my 1995 jeep yj. Anyone know where to find one besides ebay. I live in Ohio near Cincinnati.
  15. wrangler 4L conversion to detroit v8 diesel

    Detroit, Perkins, Caterpillar
    Hi, I am in the U.K. and have had a jeep (1999) for some years, an old friend told me that after WWII it was common to convert engines from petrol to diesel getting greater MPG and Horses he mentioned two engines a detroit v8/v6 diesel (2 stroke), or 3 cyclinder straight. Does anyone know if...