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  1. General Discussion
    I’ve finally got my 1998 Chevy K2500, 1st gen Cummins swap running and driving (huge thanks to everyone for all the help). My tach is getting signal from the “W” terminal on the factory GM, CS130D alternator from the original gas 5.7. I replaced the factory GM alt pulley with a Ford 3G 6G, 8 rib...
  2. Cummins Tech Section
    Need some help. I’ve got a 1987 4BT in my 84 CJ7 which came factory with a tach, that I’d like to keep. Will I need a new tach? If not how do I wire this one up? My mechanic mentioned something about Autometer selling something to attach to the alternator but he wasn’t very sure. Any help is...
  3. General Discussion
    So, I'm just about finished pouting about my XJ, and mostly convinced NOT to do another OM617a. I am also convinced that decent, somewhat inexpensive, used B3.3Ts do not exist in my section of reality. That leaves me with the 4BT as the next best option to replace my OM617. Having gone through...
1-3 of 3 Results