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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.

32851 topics in this forum

  1. 2.5-4.0 swap

    By Halton Smith,
    • 4 replies
    • 1k views

  2. Removing old heater/ac vac lines

    By hgeranium,
    • 5 replies
    • 563 views

  3. Fastener Cross Reference

    By JimiGibbs,
    • 3 replies
    • 486 views

  4. OEM Rear Brakes 1989 Comanche

    By Dal3,
    • 2 replies
    • 582 views

  5. 91 metric ton shocks?

    By vhfr1289,
    • 2 replies
    • 562 views

  6. Glasstite Cap

    By GrizzzzBear,
    • 11 replies
    • 3.7k views

  7. How to wire up a different alternator

    By Warren99,
    • 1 reply
    • 967 views

  8. Renix stumbling around 2300RPM - SOLVED IT!

    By Smash6,
    • 12 replies
    • 1.4k views

  9. 1989 Jeep Comanche not shifting when cold or electrical issue

    By Jack p,
    • 2 replies
    • 561 views

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

    By Warren99,
    • 4 replies
    • 724 views

  11. 86 speedometer cable question

    By ratrapp,
    • 6 replies
    • 736 views

  12. Identifying a rear axle for parts

    By PomPom,
    • 1 reply
    • 537 views

  13. Pics of the Auto Transmission mounting location

    By Eagle_SX4,
    • 4 replies
    • 533 views

  14. Wire Over Driver's Shoulder Above Seatbelt?

    By NickyV,   
    • 7 replies
    • 1.3k views

  15. Diagnosing Clutch Issues: Help/Advice Wanted

    By NickyV,   
    • 9 replies
    • 1.6k views

  16. Intermittent low idle in drive+dies on initial acceleration

    By hgeranium,
    • 3 replies
    • 647 views

  17. Another Rear Bumper Question

    By JimiGibbs,
    • 3 replies
    • 485 views

  18. 16 gallon vs 23 gallon 1 2

    By eaglescout526,
    • 47 replies
    • 6.7k views

  19. Throttle body modification...

    By Master Guns,
    • 2 replies
    • 491 views

  20. OEM Rear Bumper Question

    By JimiGibbs,
    • 1 reply
    • 409 views

  21. Different radiator needed for engine swap

    By Warren99,
    • 2 replies
    • 537 views

  22. Voltage gauge inaccurate for anyone else?

    By hgeranium,
    • 3 replies
    • 650 views

  23. What are these vacuum lines?

    By Warren99,
    • 3 replies
    • 631 views

  24. Coolant Reservoir Tank Cap Question 1990 4.0

    By AnotherOldJeepGuy,
    • 17 replies
    • 2k views

  25. 86 cluster indicator light panel wiring diagram?

    By coheed,
    • 2 replies
    • 537 views
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