91 explorer
Postmaster
Joined: Dec 2001
Posts: 3,742
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From: UT
What transmission do you have: auto (A4LD) or manual (M5OD)? The A4LD has a reputation of barely holding up to the 4.0 in stock form. Supercharge the 4.0, and I expect an A4LD is going to create issues.
I don't know what the M5OD will hold up to, but it has a pretty good reputation.
I don't know what the M5OD will hold up to, but it has a pretty good reputation.
Fleet Owner
Joined: Mar 2003
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From: Blue Hill Township
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Joined: Feb 2007
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I had a '91 Explorer with the M5OD and it was a terrible transmission. When i bought the vehicle it had 99,000 miles on it and there was a ton of play in the transmission. I put 30,000 miles on the transmission and it is still working, but not smoothly. I would recomend not swapping that transmission in if you can help it.
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Well the more power you put in ,it will push your problems back,if not the trannie it will be the rear drive . I find if you put too more power up front ,you have to beef up what is behind it or it wont be able to take the torque.