MAU
MUA
AUM
AMU
UMA
UAM
Whatever.
I believe there's a version of the MUA-5 with a bell housing specifically for GM. That's the one you would have, and would need. But maybe I don't understand the question.
MAU5 transmission interchangeability between models and engines
90 Trooper XS 2.8 swapped for a 3.4
(Both GM)
Are the 5 speed transmissions interchangeable between Isuzu and GM engines?
MAU5 specifically
(Both GM)
Are the 5 speed transmissions interchangeable between Isuzu and GM engines?
MAU5 specifically
1 - 9 of 9 Posts
MUA
AUM
AMU
UMA
UAM
Whatever.
I believe there's a version of the MUA-5 with a bell housing specifically for GM. That's the one you would have, and would need. But maybe I don't understand the question.
The MUA5 you need for any GM 60 degree V-6 has to come from another 1989-1991 V-6 Trooper or a 1991-1992 V-6 Rodeo*, or one of the rare V-6 pickups*. This is NOT a GM transmission (probably confused with the GM 4L30E automatic trans). I don't know of any GM manual transmission that fits Isuzus.
Some 2.6 MUA5s that can work by swapping parts, but that becomes "involved"
* using a transmission from a Rodeo or pickup requires removing the remote shifter box (3 bolts) and installing the shift lever where the box went. Dennis
Some 2.6 MUA5s that can work by swapping parts, but that becomes "involved"
* using a transmission from a Rodeo or pickup requires removing the remote shifter box (3 bolts) and installing the shift lever where the box went. Dennis
Dennis, that's better than I was able to offer.
Isn't it true that you could use any Isuzu MUA-5 transmission, provided you re-use the existing GM bell housing (front case half) on the donor transmission?
Isn't it true that you could use any Isuzu MUA-5 transmission, provided you re-use the existing GM bell housing (front case half) on the donor transmission?
That is correct. However there are output shaft variations too.Dennis, that's better than I was able to offer.
Isn't it true that you could use any Isuzu MUA-5 transmission, provided you re-use the existing GM bell housing (front case half) on the donor transmission?
The 4 cyl trans has a larger-diameter input shaft. Jerry Lemond said you could take a V6 pilot bushing and have the i.d. machined to fit the 4 cyl input shaft.
The V-6 input shaft is also a little longer, about 3/8" I think. Input shaft will bottom out against the crank and won't let the bellhousing mate up against the block if it's not cut off. Don't ask me how I know......The 4 cyl trans has a larger-diameter input shaft. Jerry Lemond said you could take a V6 pilot bushing and have the i.d. machined to fit the 4 cyl input shaft.
Mike
And THAT'S why I said it was "involved". Dennis
Longer input shaft would impact a 4 cyl trans fitted with a V6 case, and the only other issue would be the pilot bushing i.d., AFAIK.
The other way (V6 trans fitted with a 4 cyl case) should be OK long as there's enough of the shorter input shaft into the 4 cyl pilot bearing.
The other way (V6 trans fitted with a 4 cyl case) should be OK long as there's enough of the shorter input shaft into the 4 cyl pilot bearing.
1 - 9 of 9 Posts
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