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4jb1 Mu bellhousing bolt patterns and v8s

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4jb1 Mu bellhousing bolt patterns and v8s

Postby nb422 » Wed Jul 30, 2014 5:57 pm

Hi guys. At work there is a 307 Chev v8 in a 1993 Mu mated up to the diesel factory auto. We have the engine out at the moment to do up and upon it's initial drive the auto was very slack for a v8 so the owner wants to mate a manual box to the engine. My question here is what is the bellhousing bolt pattern of the auto shared with? The factory auto is bolted directly to the engine with no adapter plate so need to find a box that shares this bellhousing pattern. We have a manual box from a 4jb1 but there is a different bolt pattern between auto and manual.

Any help is much appreciated,
Cheers. Jordan
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Re: 4jb1 Mu bellhousing bolt patterns and v8s

Postby isuzurob » Thu Jul 31, 2014 4:15 pm

depends what the mu was originally, there is only the 4jb1 or 4jg2 bellhousings(they are the same) and 2.6 petrol 4ze1 engine, could have some other gearbox modified to fit though
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Re: 4jb1 Mu bellhousing bolt patterns and v8s

Postby nb422 » Thu Jul 31, 2014 5:48 pm

Its certed for the factory auto from a 93 4jb1 mu. And by the way the auto feels, and looks.. it seems like the factory one
nb422
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Posts: 213
Joined: Thu Dec 13, 2012 8:03 pm
Age: 17
Country: New Zealand
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Vehicle: 1993 Isuzu MU 4jb1 EGR Blocked, Free flow exhaust, 33x12.5 Mudstars on 15x10s. 32x10.5r16 on 15x8 -44.
Spring over axle, winch bar, 50mm bodylift, balljoint flip. Exo cage soon to come. Fully certified even.

Re: 4jb1 Mu bellhousing bolt patterns and v8s

Postby geeves » Thu Jul 31, 2014 5:57 pm

sounds like the bellhousing has been modified. At a guess the comadoor v8 box should bolt up the mod the transfer case off the auto to fit
Sanding your knuckles before starting work can help. That way you cant skin them
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Re: 4jb1 Mu bellhousing bolt patterns and v8s

Postby nb422 » Thu Jul 31, 2014 6:11 pm

Yeah possibly, i'll have a look next time im there
nb422
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Posts: 213
Joined: Thu Dec 13, 2012 8:03 pm
Age: 17
Country: New Zealand
City: Hamilton
Vehicle: 1993 Isuzu MU 4jb1 EGR Blocked, Free flow exhaust, 33x12.5 Mudstars on 15x10s. 32x10.5r16 on 15x8 -44.
Spring over axle, winch bar, 50mm bodylift, balljoint flip. Exo cage soon to come. Fully certified even.

Re: 4jb1 Mu bellhousing bolt patterns and v8s

Postby mrMUMU » Sat Apr 28, 2018 8:36 am

What was the end result with this
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