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nissan conversion

Posted: Mon Aug 23, 2010 7:48 pm
by Angry Ant
puttting gq td 42 into a 2.8 gu using gq motor and box but engine is hittin fire wall and cant line up gear box need some advice

Re: nissan conversion

Posted: Mon Aug 23, 2010 7:55 pm
by Clanky
you need a 4.2 GU box - different selector housing and gearstick.


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Re: nissan conversion

Posted: Mon Aug 23, 2010 7:56 pm
by Angry Ant
Clanky wrote:you need a 4.2 GU box - different selector housing and gearstick.
you know any one wit a 4.2 gu box

Re: nissan conversion

Posted: Mon Aug 23, 2010 8:09 pm
by Clanky
Yeah , but they are kinda using it for driving around.... :D

Re: nissan conversion

Posted: Wed Aug 25, 2010 3:05 pm
by MuddyTroll
Yep. Need a 4.2 box. Did mine 2 years ago. 4.2 motor will sooner or later tear a 2.8 box to pieces.

You will also need to rework the engine mounts a little. The drivers side mount will be destroyed every month if you don't rework the mounting point. Passenger side is OK though. Tail shafts will need redoing because of the 4.2 box too. Rear one becomes shorter and front gets longer due to the transfer case sitting further back. Gearbox mounts do line up OK though. Diffs are geared down. You will either need to change the ratios or use 35" tyres like I did to get the speedo and power curve back in spec.

Let me know how you go.

Re: nissan conversion

Posted: Wed Aug 25, 2010 6:40 pm
by Clanky
MuddyTroll wrote:Yep. Need a 4.2 box. Did mine 2 years ago. 4.2 motor will sooner or later tear a 2.8 box to pieces.

You will also need to rework the engine mounts a little. The drivers side mount will be destroyed every month if you don't rework the mounting point. Passenger side is OK though. Tail shafts will need redoing because of the 4.2 box too. Rear one becomes shorter and front gets longer due to the transfer case sitting further back. Gearbox mounts do line up OK though. Diffs are geared down. You will either need to change the ratios or use 35" tyres like I did to get the speedo and power curve back in spec.

Let me know how you go.
The 4.2 wont fit a 2.8 box - end of story
Tailshafts - just buy the 4.2 tailshafts and rear diff flange, original rear diff flange you remove will fit the front - cheap and easy. The 2.8 ones are small and crappy.
You can swap the 4.6 diffs in yours for 4.1's out of a 4.2D to fix the gearing instead of 35's if you wish. You can also run 33's your original diffs and put in the Marks4wd overdrive 5th gear
Work off the passenger mount for the correct position as its the same for the 4.2. I have a drawing for a plate to fix the drivers side - will see if I can find it

Re: nissan conversion

Posted: Wed Aug 25, 2010 7:01 pm
by Clanky
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Re: nissan conversion

Posted: Wed Aug 25, 2010 7:16 pm
by tommy182
that right there is helping a bloke out, good onya champion.. my mate had this problem, didnt realise the mounts were different till he droped the motor in then......... aww shit haha

Re: nissan conversion

Posted: Wed Aug 25, 2010 7:36 pm
by Clanky
Certainly easier to get it done whilst its out. :D

I have more info if required - just ask

Re: nissan conversion

Posted: Wed Aug 25, 2010 10:36 pm
by purplebus
Clanky wrote:Certainly easier to get it done whilst its out. :D

I have more info if required - just ask

awesome work helping out a stranger. you dont wanna run for PM do you..?
gotta be better than the others. ;)

Re: nissan conversion

Posted: Thu Aug 26, 2010 12:52 pm
by MuddyTroll
Nice work clanky.

I welded up a new engine mount to suit. Reinforced the hell out of it and it works well and hasn't let me down yet. Doing up a plate like yours never really entered my mind. Truly brilliant idea and simple too.

I take my hat off to you. Well done. ;)

Re: nissan conversion

Posted: Thu Aug 26, 2010 7:29 pm
by Clanky
purplebus wrote:
Clanky wrote:Certainly easier to get it done whilst its out. :D

I have more info if required - just ask

awesome work helping out a stranger. you dont wanna run for PM do you..?
gotta be better than the others. ;)
Me for PM? But im not Ginger nor do I wear speedos at the beach....then again I could go a new policy direction and wear a mankini
:shock:


No problems on the help, donations are acceptable for my new political party! :armsup:

Re: nissan conversion

Posted: Thu Aug 26, 2010 7:32 pm
by Clanky
MuddyTroll wrote:Nice work clanky.

I welded up a new engine mount to suit. Reinforced the hell out of it and it works well and hasn't let me down yet. Doing up a plate like yours never really entered my mind. Truly brilliant idea and simple too.

I take my hat off to you. Well done. ;)
Thanks, maybe I should write up the whole saga an put it up here. Havent finished the swap completely ( only minor stuff to do) as yet due to house renos.
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