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MJ Tech: Modification and Repairs

For all your Comanche (MJ) needs.  An excellent place to ask questions, and to discuss modifications and issues.

32746 topics in this forum

  1. Frame Stiffeners

    By desertmike,
    • 14 replies
    • 3.6k views

  2. Windshield Replacement

    By BootsNTrucks,
    • 19 replies
    • 5k views

  3. AX-15 questions

    By scottie005,
    • 11 replies
    • 1.6k views

  4. Up and Down idle, seems worse in colder temps, need advice.

    By knever3,
    • 8 replies
    • 1.1k views

  5. Harmonic Balancer Installation Tips [1989 Jeep Comanche 4.0 I6]

    By james-mc,
    • 12 replies
    • 1.7k views

  6. Hard Starting, started 1 2

    By War_Pony89,
    • 37 replies
    • 4.9k views

  7. Going to pull the heater box one more time.....

    By watchamakalit,
    • 15 replies
    • 2k views

  8. An 86 Comanche....

    By KANTANKRUS,
    • 6 replies
    • 1.1k views

  9. Evapo-Rust

    By Rubikahn,
    • 10 replies
    • 7k views

  10. Moon visor wiring

    By Rubikahn,
    • 6 replies
    • 1.5k views

  11. steering upgrade questions

    By zomeizter,
    • 6 replies
    • 1.1k views

  12. Budget lift

    By bezjeep,
    • 11 replies
    • 2.7k views

  13. what should I look for in a renix comanche?

    By morks,
    • 3 replies
    • 910 views

  14. Headlight/running light issues

    By Roberts88-87,
    • 3 replies
    • 883 views

  15. Comanche bucket seats upgrade.

    By Kikapoo,
    • 3 replies
    • 1.5k views

  16. 91 comanche 4.0 pioneer fuel sending unit

    By Delee,
    • 11 replies
    • 2.1k views

  17. Reupholstering door panels

    By eaglescout526,
    • 18 replies
    • 3.4k views

  18. 87 comanche 2.5l headers upgrade

    By Kikapoo,
    • 4 replies
    • 1.1k views

  19. Turn signals (or blinky bits) 1 2 3 4 7

    By Jesse J,
    • 155 replies
    • 14.5k views

  20. Radiator mod- Close to Open

    By USFSOFFICIAL,
    • 9 replies
    • 1.5k views

  21. No Parking Lamps

    By 90LBPioneer,
    • 8 replies
    • 1.1k views

  22. Anyone using a MSD ignition on RENIX 4.0?

    By Coyote,
    • 19 replies
    • 4.9k views

  23. Ford FOTE-D5A fuel injectors

    By JimB,
    • 5 replies
    • 1.8k views

  24. Keeping two 88s all original - EGR tubes for 2.5L

    By lamarhooten,
    • 7 replies
    • 1.2k views

  25. Suspension and Tire options 1 2

    By CptVanGuard,   
    • 26 replies
    • 4.6k views
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