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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.

32670 topics in this forum

  1. Overwhelmed with installing 4.0

    By Jacoop91,
    • 11 replies
    • 856 views

  2. Valve Cover Elbow Woes

    By Salvagedcircuit,
    • 2 replies
    • 489 views

  3. Front Suspension Replacement

    By RiversideMJ,
    • 17 replies
    • 2.9k views

  4. Brakes issues on my 90 comanche

    By Jossue,
    • 7 replies
    • 745 views

  5. problems starting

    By nathan,
    • 4 replies
    • 558 views

  6. comanche project gone bad.

    By dirtyoldjeeper,
    • 6 replies
    • 687 views

  7. Leaking component

    By Rusty_Panda,
    • 2 replies
    • 494 views

  8. Starter system issue

    By BentGear,
    • 8 replies
    • 777 views

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

    By Htchevyii,
    • 9 replies
    • 1.3k views

  10. Egr and vacuum line trouble

    By Rusty_Panda,
    • 9 replies
    • 922 views

  11. Fuel line problem, need part numbers.

    By Skylynx,
    • 11 replies
    • 955 views

  12. Durabak or Rustoleum?

    By Elwiscon,
    • 21 replies
    • 2k views

  13. What is this?

    By MrCronic,
    • 7 replies
    • 693 views

  14. Showing 10-11v gauge battery at 13.9

    By ja_racing,
    • 9 replies
    • 946 views

  15. '87 Dana 30 C.A.D. delete

    By Eagle_SX4,
    • 9 replies
    • 1.7k views

  16. PS pump

    By garyweb3,
    • 8 replies
    • 876 views

  17. 4wd swap question

    By Ricky8227,
    • 1 reply
    • 392 views

  18. Need some dimensions - yet another lift thread

    By Tex06,   
    • 4 replies
    • 637 views

  19. Turn signal gremlin

    By Whitaker717,
    • 10 replies
    • 1.6k views

  20. radio backlight bulbs

    By Pete M,
    • 6 replies
    • 570 views

  21. Dash Connector ID Please

    By AnotherOldJeepGuy,
    • 3 replies
    • 589 views

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

    By Salvagedcircuit,
    • 8 replies
    • 1.1k views

  23. 86 battery tray question

    By ratrapp,
    • 8 replies
    • 856 views

  24. '97 up console install in '89

    By Colt6920,
    • 11 replies
    • 1.1k views

  25. Need a quick measurement with some dial calipers

    By ghetdjc320,
    • 3 replies
    • 460 views
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