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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.

32820 topics in this forum

  1. Weird sputtering

    By Muncher,
    • 6 replies
    • 631 views

  2. Interior Question

    By TheNerfsmith,
    • 3 replies
    • 442 views

  3. Help get my truck running. 1 2

    By camjeep3,
    • 33 replies
    • 3.2k views

  4. B pillar courtesy light questions

    By hgeranium,
    • 12 replies
    • 877 views

  5. Skyjacker 3" lift with disconnects still around? Other recommendations?

    By War_Pony89,
    • 7 replies
    • 841 views

  6. Tranny ID help

    By SledNeck91604,
    • 21 replies
    • 93.9k views

  7. Help with Brakes and Wiring

    By TheNerfsmith,
    • 4 replies
    • 504 views

  8. 86 tach wiring

    By Agreen,
    • 20 replies
    • 3.5k views

  9. Oil issues, wow not leaking though

    By Ole Tsula,
    • 2 replies
    • 376 views

  10. Keep 89 Renix, or swap to 94 HO engine?

    By jakesmog,
    • 3 replies
    • 521 views

  11. Door handle gaskets / seals

    By farmboi,
    • 22 replies
    • 2.8k views

  12. Valve cover gasket

    By terryt,
    • 4 replies
    • 560 views

  13. Off road noise!

    By TheMaddTitan13,
    • 15 replies
    • 4.8k views

  14. Dash Bezels.

    By Eagle_SX4,
    • 1 reply
    • 370 views

  15. Steering wheel doesn’t return to center

    By hgeranium,
    • 9 replies
    • 1.4k views

  16. 2.5-4.0 swap

    By Halton Smith,
    • 4 replies
    • 958 views

  17. Removing old heater/ac vac lines

    By hgeranium,
    • 5 replies
    • 492 views

  18. Fastener Cross Reference

    By JimiGibbs,
    • 3 replies
    • 438 views

  19. OEM Rear Brakes 1989 Comanche

    By Dal3,
    • 2 replies
    • 532 views

  20. 91 metric ton shocks?

    By vhfr1289,
    • 2 replies
    • 502 views

  21. Glasstite Cap

    By GrizzzzBear,
    • 11 replies
    • 3.6k views

  22. How to wire up a different alternator

    By Warren99,
    • 1 reply
    • 892 views

  23. Renix stumbling around 2300RPM - SOLVED IT!

    By Smash6,
    • 12 replies
    • 1.3k views

  24. 1989 Jeep Comanche not shifting when cold or electrical issue

    By Jack p,
    • 2 replies
    • 495 views

  25. Will a 5V Sine wave work on an MJ Tach?

    By Warren99,
    • 4 replies
    • 671 views
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