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Unread 07-31-2002, 07:43 AM   #1
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Join Date: May 2001
Location: KY
Posts: 3
4.0 Swap into '88 Wrangler

I have a '88 Wrangler with 4.2 and 5 speed. My 4.2 is shot and I want to swap to a later 4.0 FI. If I buy a wrecked late 90s Cherokee will I be able to use the later engine, transmission and transfer case? What problems will I encounter? What if I choose to swap in an automatic?
If I have a complete parts vehicle I will have access to all the other parts too.

'88 Wrangler
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Unread 07-31-2002, 08:29 AM   #2
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Join Date: Jul 2002
Location: west
Posts: 439
You could have a problem with the computer & map sensor. The hard parts should be fine. I you have a problem replace the map sensor.
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