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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.

32574 topics in this forum

  1. Fuel Pump wiring

    By 87MJTIM,
    • 13 replies
    • 927 views

  2. Running hot fan question

    By Colt6920,
    • 7 replies
    • 665 views

  3. renix

    By rick smith,
    • 9 replies
    • 823 views

  4. Windshield Glass Replacement

    By kriswinner,
    • 7 replies
    • 695 views

  5. Column shifter to floor shift

    By Ken Seymour,
    • 4 replies
    • 442 views

  6. Are my synchronizers toast?! 1 2 3

    By InTacosWeTrust,
    • 55 replies
    • 3.5k views

  7. Turn Signals Out

    By Norton,
    • 20 replies
    • 2k views

  8. Any thoughts on this load leveling device?

    By ghetdjc320,
    • 19 replies
    • 1.3k views

  9. Booster upgrade questions

    By Eagle_SX4,
    • 10 replies
    • 752 views

  10. SUA lift

    By HuntinHopin,
    • 4 replies
    • 577 views

  11. Headlight Confusion!

    By Spinnakerblue89,
    • 4 replies
    • 585 views

  12. Cruise control

    By Teqtony,
    • 15 replies
    • 1k views

  13. Long bed tonneau cover

    By MattK,
    • 8 replies
    • 710 views

  14. Cruise control switch/stalk, can't find one 1 2 3

    By knever3,
    • 54 replies
    • 4.5k views

  15. Wiper Stuck in Intermittent - Long Delay (1990) - Fixed

    By AnotherOldJeepGuy,   
    • 10 replies
    • 1k views

  16. Overwhelmed with installing 4.0

    By Jacoop91,
    • 11 replies
    • 757 views

  17. Valve Cover Elbow Woes

    By Salvagedcircuit,
    • 2 replies
    • 430 views

  18. Front Suspension Replacement

    By RiversideMJ,
    • 17 replies
    • 2.6k views

  19. Brakes issues on my 90 comanche

    By Jossue,
    • 7 replies
    • 667 views

  20. problems starting

    By nathan,
    • 4 replies
    • 473 views

  21. comanche project gone bad.

    By dirtyoldjeeper,
    • 6 replies
    • 618 views

  22. Leaking component

    By Rusty_Panda,
    • 2 replies
    • 442 views

  23. Starter system issue

    By BentGear,
    • 8 replies
    • 699 views

  24. Renix intermediate pipe BRE mandrel bent stainless. Installed 7-2025

    By Htchevyii,
    • 9 replies
    • 1.2k views

  25. Egr and vacuum line trouble

    By Rusty_Panda,
    • 9 replies
    • 803 views
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