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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. Help get my truck running. 1 2

    By camjeep3,
    • 33 replies
    • 2.6k views

  2. B pillar courtesy light questions

    By hgeranium,
    • 12 replies
    • 631 views

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

    By War_Pony89,
    • 7 replies
    • 583 views

  4. Tranny ID help

    By SledNeck91604,
    • 21 replies
    • 93.7k views

  5. Help with Brakes and Wiring

    By TheNerfsmith,
    • 4 replies
    • 342 views

  6. 86 tach wiring

    By Agreen,
    • 20 replies
    • 3k views

  7. Oil issues, wow not leaking though

    By Ole Tsula,
    • 2 replies
    • 254 views

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

    By jakesmog,
    • 3 replies
    • 354 views

  9. Door handle gaskets / seals

    By farmboi,
    • 22 replies
    • 2.2k views

  10. Valve cover gasket

    By terryt,
    • 4 replies
    • 401 views

  11. Off road noise!

    By TheMaddTitan13,
    • 15 replies
    • 4.5k views

  12. Dash Bezels.

    By Eagle_SX4,
    • 1 reply
    • 286 views

  13. Steering wheel doesn’t return to center

    By hgeranium,
    • 9 replies
    • 925 views

  14. 2.5-4.0 swap

    By Halton Smith,
    • 4 replies
    • 799 views

  15. Removing old heater/ac vac lines

    By hgeranium,
    • 5 replies
    • 365 views

  16. Fastener Cross Reference

    By JimiGibbs,
    • 3 replies
    • 322 views

  17. OEM Rear Brakes 1989 Comanche

    By Dal3,
    • 2 replies
    • 389 views

  18. 91 metric ton shocks?

    By vhfr1289,
    • 2 replies
    • 347 views

  19. Glasstite Cap

    By GrizzzzBear,
    • 11 replies
    • 3.2k views

  20. How to wire up a different alternator

    By Warren99,
    • 1 reply
    • 568 views

  21. Renix stumbling around 2300RPM - SOLVED IT!

    By Smash6,
    • 12 replies
    • 895 views

  22. 1989 Jeep Comanche not shifting when cold or electrical issue

    By Jack p,
    • 2 replies
    • 337 views

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

    By Warren99,
    • 4 replies
    • 470 views

  24. 86 speedometer cable question

    By ratrapp,
    • 6 replies
    • 459 views

  25. Identifying a rear axle for parts

    By PomPom,
    • 1 reply
    • 385 views
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