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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.

31921 topics in this forum

  1. Cracked Flexplate Noise 1 2 3 4

    By AZJeff,
    • 77 replies
    • 9.4k views

  2. Bench Seat vs Bucket Seats: which do you prefer? 1 2 3

    By comanche47,
    • 53 replies
    • 6.9k views

  3. Dana 30 axle shaft questions

    By thejim42,
    • 13 replies
    • 4.4k views

  4. Rol Fogs

    By Muncher,
    • 14 replies
    • 881 views

  5. Who’s running 35x12.50x17s?

    By JordanTMiller,
    • 6 replies
    • 819 views

  6. Renix 2.5L Overflow Tank Cap

    By Minuit,
    • 7 replies
    • 1.5k views

  7. Blower motor turns backwards

    By olddude,
    • 4 replies
    • 655 views

  8. Taillight Stolen

    By Manche757,
    • 21 replies
    • 2.1k views

  9. Ac smell

    By Muncher,
    • 7 replies
    • 1k views

  10. 1989 jeep mj eliminator 4wd

    By Davidsamplesmjjr,
    • 18 replies
    • 837 views

  11. wiring possible ground issue

    By jeeppapa,
    • 1 reply
    • 430 views

  12. can i convert my rear mj axle to coils? without welding anything or paying a arm and a leg?

    By Davidsamplesmjjr,
    • 19 replies
    • 977 views

  13. front lower control arms

    By Davidsamplesmjjr,
    • 14 replies
    • 1k views

  14. Gear recommendations

    By scguy,
    • 11 replies
    • 1.1k views

  15. Looking for a new rear bumper, any suggestions

    By EverGear,
    • 3 replies
    • 625 views

  16. 42Re-Aw4 Swap

    By jimoshel,
    • 14 replies
    • 15.6k views

  17. Headlights work marker lights don’t

    By Aidanfenn,   
    • 3 replies
    • 607 views

  18. LS swap guys! Need some input!

    By krustyballer16,
    • 14 replies
    • 747 views

  19. RPMs drop to zero, while driving - Can't solve 1 2

    By Big Dan,
    • 43 replies
    • 2.9k views

  20. Does my truck have ac

    By 89restoration,
    • 5 replies
    • 605 views

  21. Tailgate won’t open

    By ratty,
    • 10 replies
    • 1.2k views

  22. Overheating Diagnosis [1989 Jeep Comanche 4.0L I6] 1 2 3

    By james-mc,
    • 51 replies
    • 3.7k views

  23. 302 or 347 in a COMANCHE???

    By kaidenlem,
    • 8 replies
    • 799 views

  24. Leaf spring overhaul: bushings, bolts, pads, coating, shackles 1 2 3

    By A-man930,   
    • 59 replies
    • 13.9k views

  25. Wrong Rotors? - SOLVED- Break Pads and Rotors for 1988 Jeep Comanche RWD

    By CoastChief,
    • 22 replies
    • 1.6k views
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