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11-04-2009, 08:04 PM

cubanchris81

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Location: Dover PA

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Year: 1998

Model: Cherokee

Engine: 4.0L Power Tech I-6

go green

I have a 98 xj 4 door gettin ready to put 5.5" tnt y-link lift with teraflex hd t.case. when I go to install cummins 3.9l 4BT will I have to put heavier springs in front too?

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11-04-2009, 10:31 PM

c-loss

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Year: 1988

Model: Cherokee

Engine: 4.0

Yes and I would do allot of bracing to the unibody rails.

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11-05-2009, 07:09 AM

4x4kid17

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deff let me know how this goes! me and my dad are highly interested in dropping a diesel into our jeep..

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11-05-2009, 09:59 AM

Mike1998XJ

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Year: 1998, 1999

Model: Cherokee

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The 4BT weighs 745#.

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11-05-2009, 10:38 AM

4.3L XJ

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Year: 1986

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Engine: 4.3L with headers and full 3" exhaust system

Sky jacker springs have higher spring rates. They might make a good choice. I can give you the name of a spring company that can wind yo some springs out of heavier wire. I had a set of theirs in my Ford pickup with a CAT 3208. Worked great.