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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.

32852 topics in this forum

  1. 86 fuel tank vent valve hose diagram

    By ratrapp,
    • 7 replies
    • 4.9k views

  2. Cracked Flexplate Noise 1 2 3 4

    By AZJeff,
    • 77 replies
    • 23.9k views

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

    By comanche47,
    • 53 replies
    • 14.1k views

  4. Dana 30 axle shaft questions

    By thejim42,
    • 13 replies
    • 6k views

  5. Rol Fogs

    By Muncher,
    • 14 replies
    • 1.7k views

  6. Who’s running 35x12.50x17s?

    By JordanTMiller,
    • 6 replies
    • 1.8k views

  7. Renix 2.5L Overflow Tank Cap

    By Minuit,
    • 7 replies
    • 2.7k views

  8. Blower motor turns backwards

    By olddude,
    • 4 replies
    • 1.3k views

  9. Taillight Stolen

    By Manche757,
    • 21 replies
    • 3.5k views

  10. Ac smell

    By Muncher,
    • 7 replies
    • 2k views

  11. 1989 jeep mj eliminator 4wd

    By Davidsamplesmjjr,
    • 18 replies
    • 2.4k views

  12. wiring possible ground issue

    By jeeppapa,
    • 1 reply
    • 878 views

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

    By Davidsamplesmjjr,
    • 19 replies
    • 2.6k views

  14. front lower control arms

    By Davidsamplesmjjr,
    • 14 replies
    • 2.3k views

  15. Gear recommendations

    By scguy,
    • 11 replies
    • 2.3k views

  16. Looking for a new rear bumper, any suggestions

    By EverGear,
    • 3 replies
    • 1.1k views

  17. 42Re-Aw4 Swap

    By jimoshel,
    • 14 replies
    • 20.5k views

  18. Headlights work marker lights don’t

    By Aidanfenn,   
    • 3 replies
    • 1.2k views

  19. LS swap guys! Need some input!

    By krustyballer16,
    • 14 replies
    • 2.3k views

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

    By Big Dan,
    • 43 replies
    • 6.2k views

  21. Does my truck have ac

    By 89restoration,
    • 5 replies
    • 1.3k views

  22. Tailgate won’t open

    By ratty,
    • 10 replies
    • 2.5k views

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

    By james-mc,
    • 51 replies
    • 8k views

  24. 302 or 347 in a COMANCHE???

    By kaidenlem,
    • 8 replies
    • 1.9k views

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

    By A-man930,   
    • 59 replies
    • 19.9k views
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