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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.

32883 topics in this forum

  1. 4.0 Engine ID question

    By JACKED88,
    • 16 replies
    • 1.9k views

  2. I cant get back into 2wd

    By Wakerider933,
    • 14 replies
    • 2.2k views

  3. replacing leaky coolant pump..how to measure hub height

    By azscott,
    • 4 replies
    • 2.3k views

  4. Renix OBA question

    By LoTGoD,
    • 6 replies
    • 1.3k views

  5. AX-15 fluid type?

    By james750,
    • 16 replies
    • 5.4k views

  6. CTS -Coolant Temperature Sensor ....Where is it exactly?

    By ocean,
    • 7 replies
    • 2.3k views

  7. 89 comanche cluster

    By biggwheels,
    • 11 replies
    • 2.4k views

  8. custom headers

    By 90MJext,
    • 2 replies
    • 987 views

  9. 89 or 90 vs 97 hub assembly

    By james750,
    • 4 replies
    • 1.1k views

  10. What size

    By jeepaholic,
    • 5 replies
    • 1.3k views

  11. 2.5 cylinder head 403 casting # bolt size 5/8????

    By ocean,
    • 11 replies
    • 1.6k views

  12. Window scrapers or rubbers

    By Al Evitts,
    • 8 replies
    • 1.5k views

  13. Starting Comanche build but need advice

    By stageman,
    • 8 replies
    • 1.5k views

  14. transfer case troubles!

    By batafish22,
    • 13 replies
    • 2.6k views

  15. 96 xj doors to 89 mj

    By poopypants,
    • 10 replies
    • 3.7k views

  16. starter relay

    By GATOR88,
    • 11 replies
    • 1.8k views

  17. Help me figure out this '89 Pioneer. Buy or not to buy?

    By AutoMoto,
    • 9 replies
    • 1.4k views

  18. so now mine is overheating.......whats the next step?

    By 90eliminator,
    • 6 replies
    • 1.4k views

  19. Bogging and backfiring

    By Voodoochiled445,
    • 24 replies
    • 8.6k views

  20. ? for those that have swapped wire harnesses

    By 87mjdriver,
    • 8 replies
    • 1.9k views

  21. FAILED Smog Check - Inoperative EGR System -> Now PASSED 1 2

    By SuperWade2,
    • 48 replies
    • 4.8k views

  22. Removing Tail Pipe?

    By Luvtohunt,
    • 4 replies
    • 2k views

  23. engine swap

    By banjobill80,
    • 16 replies
    • 2.9k views

  24. Stange turn signal/parking light behavior

    By Akula69,
    • 10 replies
    • 1.7k views

  25. the MJ production number thread

    By 89eliminator,
    • 16 replies
    • 2.4k views
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