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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.

32890 topics in this forum

  1. Long bed tonneau cover

    By MattK,
    • 8 replies
    • 1.2k views

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

    By knever3,
    • 54 replies
    • 6.4k views

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

    By AnotherOldJeepGuy,   
    • 10 replies
    • 1.8k views

  4. Overwhelmed with installing 4.0

    By Jacoop91,
    • 11 replies
    • 1.3k views

  5. Valve Cover Elbow Woes

    By Salvagedcircuit,
    • 2 replies
    • 730 views

  6. Front Suspension Replacement

    By RiversideMJ,
    • 17 replies
    • 4.1k views

  7. Brakes issues on my 90 comanche

    By Jossue,
    • 7 replies
    • 1.2k views

  8. problems starting

    By nathan,
    • 4 replies
    • 805 views

  9. comanche project gone bad.

    By dirtyoldjeeper,
    • 6 replies
    • 1k views

  10. Leaking component

    By Rusty_Panda,
    • 2 replies
    • 791 views

  11. Starter system issue

    By BentGear,
    • 8 replies
    • 1.2k views

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

    By Htchevyii,
    • 9 replies
    • 1.9k views

  13. Egr and vacuum line trouble

    By Rusty_Panda,
    • 9 replies
    • 1.3k views

  14. Fuel line problem, need part numbers.

    By Skylynx,
    • 11 replies
    • 1.5k views

  15. Durabak or Rustoleum?

    By Elwiscon,
    • 21 replies
    • 3k views

  16. What is this?

    By MrCronic,
    • 7 replies
    • 972 views

  17. Showing 10-11v gauge battery at 13.9

    By ja_racing,
    • 9 replies
    • 1.3k views

  18. '87 Dana 30 C.A.D. delete

    By Eagle_SX4,
    • 9 replies
    • 2.2k views

  19. PS pump

    By garyweb3,
    • 8 replies
    • 1.3k views

  20. 4wd swap question

    By Ricky8227,
    • 1 reply
    • 583 views

  21. Need some dimensions - yet another lift thread

    By Tex06,   
    • 4 replies
    • 897 views

  22. Turn signal gremlin

    By Whitaker717,
    • 10 replies
    • 2.1k views

  23. radio backlight bulbs

    By Pete M,
    • 6 replies
    • 910 views

  24. Dash Connector ID Please

    By AnotherOldJeepGuy,
    • 3 replies
    • 856 views

  25. Reproduction Fender & Header Panel / Front Clip Quality?

    By Salvagedcircuit,
    • 8 replies
    • 1.6k views
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