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Will a GQ RB30 Bellhousing fit MQ L28 4 Speed Box?

Posted: Fri Apr 17, 2009 9:11 pm
by smen
I'm looking at doing an RB25DET (got one sitting in the shed) conversion in an MQ and was wondering if the RB30 Bellhousing will fit the L28 4 Speed box to save re-drilling holes and also I'm assuming the engine won't be on a lean this way.

Re: Will a GQ RB30 Bellhousing fit MQ L28 4 Speed Box?

Posted: Fri Apr 17, 2009 11:03 pm
by crankycruiser
smen wrote:I'm looking at doing an RB25DET (got one sitting in the shed) conversion in an MQ and was wondering if the RB30 Bellhousing will fit the L28 4 Speed box to save re-drilling holes and also I'm assuming the engine won't be on a lean this way.
im not sure on this.. but why not jsut get a g box out of a rb30 patrol and use that with the rb25? 25 will bolt straight on

Posted: Fri Apr 17, 2009 11:22 pm
by tna racing
need to olingate some holes. not sure wich ones though!

Re: Will a GQ RB30 Bellhousing fit MQ L28 4 Speed Box?

Posted: Fri Apr 17, 2009 11:23 pm
by smen
crankycruiser wrote:
smen wrote:I'm looking at doing an RB25DET (got one sitting in the shed) conversion in an MQ and was wondering if the RB30 Bellhousing will fit the L28 4 Speed box to save re-drilling holes and also I'm assuming the engine won't be on a lean this way.
im not sure on this.. but why not jsut get a g box out of a rb30 patrol and use that with the rb25? 25 will bolt straight on
How hard is it to swap a GQ box into an MQ. I thought the transfer case was on the wrong side?

Posted: Fri Apr 17, 2009 11:24 pm
by smen
tna racing wrote:need to olingate some holes. not sure wich ones though!
The elongation of holes is done when using the 4 speed box I believe.

Posted: Fri Apr 17, 2009 11:47 pm
by tna racing
smen wrote:
tna racing wrote:need to olingate some holes. not sure wich ones though!
The elongation of holes is done when using the 4 speed box I believe.
Yes.

wouldn't a rb30 box be too long?

and im not sure about bellhousing

Posted: Sat Apr 18, 2009 8:59 am
by grinch2
the rb30 patrol bellhousing is part of the gearbox and will not seperate as far as i know

Posted: Sat Apr 18, 2009 9:08 am
by NutterGQ
Rb30 \rd28 have non removable bellhousing, also mq has offset tailshaft doesn't it?

Posted: Sat Apr 18, 2009 9:55 am
by smen
What problems will I run into trying to get the GQ RB30 box in?

Will the gearbox mounts line up?
Will I need to swap drive shafts? If so, are there drive shafts that will fit?
Will I need to swap rear/front axles?

Posted: Sat Apr 18, 2009 10:07 am
by NutterGQ
dont bother, your diff is offset if i'm right its just not that easy, the factory box and the RB/RD don't bolt straight in, cross member is diff etc etc.....if you want to use an RB25 (and i wouldn't) buy a GQ for $2000 and bolt it straight in.

Posted: Sat Apr 18, 2009 10:10 am
by smen
Can you point me in the direction of a $2000 GQ?

I haven't actually bought a patrol yet. I wanted to know if the RB25DET swap could be done in an MQ.

Sounds like it will be MUCH easier in a GQ. Thanks for your help.

Posted: Sat Apr 18, 2009 10:26 am
by NutterGQ
at fowles they regularly struggle fpr 2 - 2.5k

also getting cheap private, have picked up good units for 2-3k

also on here an patrol 4x4 all u need to do is actually look.

Posted: Sat Apr 18, 2009 1:06 pm
by Jacked
every gq on here is 12 grand pluss.... tell him his dreamin

Posted: Sat Apr 18, 2009 1:20 pm
by cooki_monsta
thats incorrect, i have seen petrol shitter that people have sold on here for 2k to 3k

Posted: Tue Apr 21, 2009 2:08 pm
by NutterGQ
I bought mine in excellent conditioon 3years ago for $3200 and just sold it for 8K and its hardly a shitter, try looking before speaking.