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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.

32479 topics in this forum

  1. 3" lift ?

    By trapperbb,
    • 13 replies
    • 1.9k views

  2. Auto swap vs 4x4 swap

    By Wesleypipesyo,
    • 19 replies
    • 2.9k views

  3. Part number for locking plate clip ring

    By Keyav8r,
    • 10 replies
    • 1.3k views

  4. High idle after injector swap

    By dscowell,
    • 9 replies
    • 1.3k views

  5. Quick question about no heat

    By Randy in Maine,
    • 24 replies
    • 3.7k views

  6. OEM Blazer Fog Lights 1 2

    By Zenobian_84,
    • 25 replies
    • 4k views

  7. 89' ECM fried what relays connections I need to check?

    By rustybottoms88,
    • 0 replies
    • 691 views

  8. E brake cable question

    By big66440,
    • 4 replies
    • 1.1k views

  9. 4.0L compression test

    By Bobolink,
    • 1 reply
    • 828 views

  10. window

    By vracanelli,
    • 1 reply
    • 1.1k views

  11. Dual Diaphragm Booster/MC: Which distribution block to use?

    By Minuit,
    • 23 replies
    • 2.3k views

  12. No LEFT signal or brake light

    By xjrev10,
    • 10 replies
    • 1.5k views

  13. Yet another no start. Renix 6 cyl

    By MancheKid86,
    • 4 replies
    • 1.3k views

  14. wheel spacers need help 1 2 3

    By redwolf624,
    • 73 replies
    • 11.1k views

  15. Who has over 200,000 on a daily driver? 1 2 3

    By 88AMComanche,   
    • 56 replies
    • 8.7k views

  16. Pillar lights on at half brightness

    By Rockfrog,
    • 11 replies
    • 1.3k views

  17. gear ratio questions

    By dustyinthedirt,   
    • 16 replies
    • 2.9k views

  18. 2.8 to 4.0 swap

    By akadeutsch,
    • 3 replies
    • 1.7k views

  19. Engine swap

    By mj86,
    • 17 replies
    • 2.1k views

  20. rear main seal 1 2

    By dj5,
    • 28 replies
    • 8.3k views

  21. marvel mystery oil?

    By Dom U,
    • 15 replies
    • 2.6k views

  22. Ladder/lumber rack

    By Dando,
    • 13 replies
    • 4.3k views

  23. New blower motor not functioning....must be something else.. 1 2

    By Rohls,   
    • 30 replies
    • 4.9k views

  24. Light bar oppinions

    By Jacob Ochs,
    • 10 replies
    • 1.8k views

  25. Flush coolant just in engine?

    By 91Pioneer,
    • 9 replies
    • 2.8k views
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