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  1. S

    Propane stroker?

    How much power could I get out of a 4.7 stroker with 11-1 compression running on propane. Propane is roughly 108 octane and Got propane.com has a kit that retrofits 4.0 jeep engines on propane with no computer or sensors. It would stand to reason that a lot of power could be made without the...
  2. S

    A little more transfer case help

    Thanks to everyone who responded and answerd questions about installing a YJ 231 into my XJ. I have one more question. After removing my old case I noticed one difference besides the shift lever needing to be swaped. there are two elec. plugs on my original, and only one on the new one. In place...
  3. S

    xj 231 vs. yj 231 ?

    The transfer case in my 94 xj is about shot and I have found one for sale, but it is for a yj. He says the spline count is 23 just like mine. Are there any differences? Will it bolt up correctly? Thanks SASS
  4. S

    NP 231 help

    I have a 1994 xj with auto trans and 4.0 engine. My transfer case chain has stretched and is allmost gone.I can hear it rubbing the inside of the case. I am going to pull a part this saturday to get another, but need a little help on wich years will work as far as the...
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