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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.

32851 topics in this forum

  1. Turn Signals Out

    By Norton,
    • 20 replies
    • 2.7k views

  2. Any thoughts on this load leveling device?

    By ghetdjc320,
    • 19 replies
    • 2k views

  3. Booster upgrade questions

    By Eagle_SX4,
    • 10 replies
    • 1.3k views

  4. SUA lift

    By HuntinHopin,
    • 4 replies
    • 884 views

  5. Headlight Confusion!

    By Spinnakerblue89,
    • 4 replies
    • 897 views

  6. Cruise control

    By Teqtony,
    • 15 replies
    • 1.5k views

  7. Long bed tonneau cover

    By MattK,
    • 8 replies
    • 1.1k views

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

    By knever3,
    • 54 replies
    • 6k views

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

    By AnotherOldJeepGuy,   
    • 10 replies
    • 1.7k views

  10. Overwhelmed with installing 4.0

    By Jacoop91,
    • 11 replies
    • 1.2k views

  11. Valve Cover Elbow Woes

    By Salvagedcircuit,
    • 2 replies
    • 666 views

  12. Front Suspension Replacement

    By RiversideMJ,
    • 17 replies
    • 3.8k views

  13. Brakes issues on my 90 comanche

    By Jossue,
    • 7 replies
    • 1.1k views

  14. problems starting

    By nathan,
    • 4 replies
    • 732 views

  15. comanche project gone bad.

    By dirtyoldjeeper,
    • 6 replies
    • 917 views

  16. Leaking component

    By Rusty_Panda,
    • 2 replies
    • 716 views

  17. Starter system issue

    By BentGear,
    • 8 replies
    • 1.1k views

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

    By Htchevyii,
    • 9 replies
    • 1.8k views

  19. Egr and vacuum line trouble

    By Rusty_Panda,
    • 9 replies
    • 1.2k views

  20. Fuel line problem, need part numbers.

    By Skylynx,
    • 11 replies
    • 1.4k views

  21. Durabak or Rustoleum?

    By Elwiscon,
    • 21 replies
    • 2.8k views

  22. What is this?

    By MrCronic,
    • 7 replies
    • 901 views

  23. Showing 10-11v gauge battery at 13.9

    By ja_racing,
    • 9 replies
    • 1.2k views

  24. '87 Dana 30 C.A.D. delete

    By Eagle_SX4,
    • 9 replies
    • 2.1k views

  25. PS pump

    By garyweb3,
    • 8 replies
    • 1.2k views
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