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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.

32873 topics in this forum

  1. Column shifter to floor shift

    By Ken Seymour,
    • 4 replies
    • 819 views

  2. Are my synchronizers toast?! 1 2 3

    By InTacosWeTrust,
    • 55 replies
    • 5.4k views

  3. Turn Signals Out

    By Norton,
    • 20 replies
    • 2.8k views

  4. Any thoughts on this load leveling device?

    By ghetdjc320,
    • 19 replies
    • 2.1k views

  5. Booster upgrade questions

    By Eagle_SX4,
    • 10 replies
    • 1.3k views

  6. SUA lift

    By HuntinHopin,
    • 4 replies
    • 904 views

  7. Headlight Confusion!

    By Spinnakerblue89,
    • 4 replies
    • 921 views

  8. Cruise control

    By Teqtony,
    • 15 replies
    • 1.6k views

  9. Long bed tonneau cover

    By MattK,
    • 8 replies
    • 1.2k views

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

    By knever3,
    • 54 replies
    • 6.1k views

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

    By AnotherOldJeepGuy,   
    • 10 replies
    • 1.7k views

  12. Overwhelmed with installing 4.0

    By Jacoop91,
    • 11 replies
    • 1.2k views

  13. Valve Cover Elbow Woes

    By Salvagedcircuit,
    • 2 replies
    • 693 views

  14. Front Suspension Replacement

    By RiversideMJ,
    • 17 replies
    • 4k views

  15. Brakes issues on my 90 comanche

    By Jossue,
    • 7 replies
    • 1.2k views

  16. problems starting

    By nathan,
    • 4 replies
    • 765 views

  17. comanche project gone bad.

    By dirtyoldjeeper,
    • 6 replies
    • 953 views

  18. Leaking component

    By Rusty_Panda,
    • 2 replies
    • 753 views

  19. Starter system issue

    By BentGear,
    • 8 replies
    • 1.1k views

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

    By Htchevyii,
    • 9 replies
    • 1.9k views

  21. Egr and vacuum line trouble

    By Rusty_Panda,
    • 9 replies
    • 1.3k views

  22. Fuel line problem, need part numbers.

    By Skylynx,
    • 11 replies
    • 1.4k views

  23. Durabak or Rustoleum?

    By Elwiscon,
    • 21 replies
    • 2.9k views

  24. What is this?

    By MrCronic,
    • 7 replies
    • 927 views

  25. Showing 10-11v gauge battery at 13.9

    By ja_racing,
    • 9 replies
    • 1.2k views
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