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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.

32742 topics in this forum

  1. what year for donor? engine swap Q's

    By r.j.c.omanche,
    • 7 replies
    • 1.7k views

  2. Easiest way to Do this

    By BookspanS,
    • 12 replies
    • 1.7k views

  3. XJ Add-a-leafs

    By jtdesigns,
    • 6 replies
    • 1.4k views

  4. Gear ratio

    By mx215,
    • 1 reply
    • 909 views

  5. Manual trans questions 1 2

    By Redramman,
    • 26 replies
    • 3.1k views

  6. Door Ajar Switches

    By robfg67,
    • 2 replies
    • 986 views

  7. 4.0 main bearing questions

    By Sugarfoot,
    • 0 replies
    • 802 views

  8. Runs great, but dies unexpectedly sometimes - Please advise!

    By bilgamesh,
    • 15 replies
    • 1.7k views

  9. Off key, truck keeps running!

    By TajMan,
    • 21 replies
    • 3.8k views

  10. I need a wiring diagram for Headlight Switch

    By SloatsburgComanche,
    • 5 replies
    • 2.1k views

  11. Another Motor problem

    By turbotyla,
    • 3 replies
    • 1.1k views

  12. Power Steering Question

    By HOrnbrod,
    • 4 replies
    • 1.1k views

  13. The horrid glowing dash light is back.

    By james750,
    • 8 replies
    • 1.3k views

  14. how to tell gear ratio

    By jeepman09,
    • 5 replies
    • 1.6k views

  15. sensor question

    By manche,
    • 1 reply
    • 885 views

  16. external visor

    By manche,
    • 12 replies
    • 1.6k views

  17. Brake Schematic 89 Comanche

    By lennyKatan,
    • 0 replies
    • 849 views

  18. Leaky Sunroof???

    By lil_loco,
    • 0 replies
    • 791 views

  19. Grand Cherokee front sway bars

    By jtdesigns,
    • 5 replies
    • 1.1k views

  20. master cylinder bleed...clutch

    By thejum57,
    • 3 replies
    • 1.1k views

  21. What is the BTDC timing degree for a 4.0 LO enging?

    By stonehands,
    • 17 replies
    • 3.6k views

  22. any issues with rough country lifts???

    By r.j.c.omanche,
    • 17 replies
    • 2k views

  23. Brake help

    By lennyKatan,
    • 5 replies
    • 1.3k views

  24. need help to remove my 88MJ 6' bed

    By motorr50,
    • 6 replies
    • 4.2k views

  25. 89' need help with motor shock

    By JunkMaster,
    • 4 replies
    • 1.2k views
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