Help!!! Transmission guys

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Help!!! Transmission guys

Postby 99_trooper » Fri May 07, 2021 7:31 pm

Ok, new guy here.
My questions are about transmission. On one of the Facebook Isuzu groups. One of the guys was saying that bell housing on 2.5 & 2.6 are the same as the GM 60° V6, ok. But he also stated that the 3.2 & 3.5 also shared the same 60° V6 bolt pattern. It was also stated that any transmission from a GM 60° V6 will bolt up. I'm still learning my way around this website.

So is this true?

My 1999 Trooper codes:
G80 =LSD
S7C =4.30 Gear ratio
V05 =HD radiator
7EX =Shift on the FLY
YM4 =Laminated tinted glass
6MK =Doors mirrors folding w/DEF
RMQ = 4l30 A/T weak tranny [w/ power/winter buttons] & TOD
1st mod: manual hubs

Now for a funny one
8AA =GOOD QUALITY ethylene glycol AntiFreeze
So do you get so so AntiFreeze w/other codes

This one I can't find. Just under the Vin# is
M.D. (UBS7VF) then (AI/JJ) ???
Does anybody know what this means?

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Re: Help!!! Transmission guys

Postby DSUZU » Fri May 07, 2021 9:21 pm

There is no "2.5". You may be thinking about the 2.3 and 2.6. Those DO share the same "bell housing" pattern, but it is nothing like a GM 60 degree V-6. It is my understanding that the 3.2 bell housing pattern MAY be the same as the GM 60 degrees. IIRC, there is a place on each side where there are two bolt holes and one set fits the 3.2 and (again IIRC) the other hole fits the GM pattern. Hopefully, someone else can add further details about the GM / 3.2 bell housings. Dennis
1991 LS Trooper 2.8 V6 5 speed conversion (Sold)
1989 LS Spacecab 2.6 5 speed 4x4 manual hubs, Rodeo torsion bars, extended shackles, 2" lift, K&N air filter (drop in), dump bed conversion, burgundy interior change, warn brush bar. Engine is bored .020 oversize and upgraded to 1994 pistons, head and EFI system.
Previously owned: 1987 Trooper II LS, 1989 Trooper (parts only), 1994 Trooper 3.2 Auto, 1997 Rodeo 2.6 5 speed, 1993 shortbed pickup 2.3 (project - sold) 1992 Rodeo 4x4 LS (parts car, devoured by Spacecab needs) plus some 70 plus other non Isuzu vehicles over the years. 1994 Amigo devoured to provide head and EFI system.
Heavily damaged by engine compartment fire while driving on March 24th 2018, condemned by insurance company and taken on March 30th 2018 :cry:.
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Re: Help!!! Transmission guys

Postby Shawn Anthony » Sat May 08, 2021 1:50 am

The 3.2L & 3.5L Isuzu V6 share the same engine block. these engines fit the GM 60 degree v6 bolt pattern. This pattern is different than the 60 degree 4 cylinder pattern. Thus the 2.3 & 2.6L Isuzu 4 cylinders which share the same engine block & will not bolt to the V6 transmissions.

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