MJ Tech: Modification and Repairs

32756 topics in this forum

1. 4.10 TJ Rubicon gearing in 3.07 MJ Dana 44

   By thousender, December 9, 2025
   • 14 replies
   • 944 views
   • 
   • ghetdjc320
   • December 11, 2025

2. No start

   By woodard78, December 6, 2025
   • 11 replies
   • 748 views
   • 
   • hgeranium
   • December 10, 2025

3. Getting high beams to work again

   By hgeranium, December 2, 2025
   • 5 replies
   • 580 views
   • 
   • A-man930
   • December 10, 2025

4. Heater Core Recommendations

   By Blaine.D, February 1, 2023
   • 21 replies
   • 4k views
   • 
   • 89 MJ
   • December 9, 2025

5. Thermostat opening temp opinions

   By hgeranium, December 7, 2025
   • 6 replies
   • 580 views
   • 
   • hgeranium
   • December 8, 2025

6. What’s this on my oil dipstick?

   By hgeranium, December 8, 2025
   • 4 replies
   • 592 views
   • 
   • watchamakalit
   • December 8, 2025

7. Manifold install 1 2

   By eaglescout526, November 26, 2025
   • 29 replies
   • 1.7k views
   • 
   • 75sv1
   • December 8, 2025

8. Vinyl/rubber flooring

   By derf, December 4, 2025
   • 4 replies
   • 576 views
   • 
   • Salvagedcircuit
   • December 8, 2025

9. upper control arm help

   By vhfr1289, December 5, 2025
   • 6 replies
   • 596 views
   • 
   • llhat
   • December 8, 2025

10. help

    By Dylanh86, December 5, 2025   

    • carburetor
    • fuel pump
    • 1 reply
    • 432 views
    • 
    • Gojira94
    • December 6, 2025

11. 88 Instrument Cluster Help

    By RNMashups, November 10, 2025
    • 7 replies
    • 715 views
    • 
    • RNMashups
    • December 4, 2025

12. Oil blow-by and a strange liquid

    By hgeranium, December 2, 2025
    • 7 replies
    • 633 views
    • 
    • llhat
    • December 3, 2025

13. Bent Axle

    By Eagle_SX4, December 2, 2025
    • 12 replies
    • 878 views
    • 
    • Eagle_SX4
    • December 3, 2025

14. Replacing the radio in the 89 Eliminator

    By grey89elim, December 1, 2025
    • 9 replies
    • 742 views
    • 
    • Smokeyyank
    • December 2, 2025

15. 1986 LWB Comanche sending unit

    By LoSwap88, December 2, 2025
    • 1 reply
    • 405 views
    • 
    • eaglescout526
    • December 2, 2025

16. Need Source for Body Graphics

    By AZJeff, December 1, 2025
    • 6 replies
    • 571 views
    • 
    • fiatslug87
    • December 2, 2025

17. 86 2.8 serpentine belt question

    By ratrapp, November 30, 2025
    • 8 replies
    • 532 views
    • 
    • ratrapp
    • December 1, 2025

18. Niche Problem

    By TheNerfsmith, November 29, 2025
    • 0 replies
    • 273 views
    • 
    • TheNerfsmith
    • November 29, 2025

19. Quartz clock stuck at 1:00, not blinking

    By hgeranium, November 29, 2025
    • 3 replies
    • 313 views
    • 
    • eaglescout526
    • November 29, 2025

20. The wiring in this truck is something special

    By 90comanchegirl, November 28, 2025
    • 3 replies
    • 454 views
    • 
    • eaglescout526
    • November 28, 2025

21. Braided cover on lower coolant hose - needed?

    By AnotherOldJeepGuy, November 25, 2025
    • 5 replies
    • 447 views
    • 
    • AnotherOldJeepGuy
    • November 28, 2025

22. Sun Visor Compatibility

    By robfg67, November 28, 2025
    • 4 replies
    • 426 views
    • 
    • fiatslug87
    • November 28, 2025

23. Will fitted XJ front floor mats fit a Comanche?

    By dasbulliwagen, September 14, 2022
    • 14 replies
    • 3k views
    • 
    • dasbulliwagen
    • November 27, 2025

24. Windshield washer pump

    By hgeranium, November 23, 2025
    • 3 replies
    • 386 views
    • 
    • eaglescout526
    • November 26, 2025

25. Speedo noise question

    By PomPom, November 25, 2025
    • 2 replies
    • 356 views
    • 
    • PomPom
    • November 25, 2025