4.2TD into a GU 2.8

Submitted: Wednesday, Jan 26, 2005 at 15:48
ThreadID: 19791 Views:3081 Replies:6 FollowUps:4
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Has anyone replaced a 2.8TD with a 4.2TD? if so, what 's involved. will the gearbox hold up and what sort of dollars would I be looking at.
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Reply By: kesh - Wednesday, Jan 26, 2005 at 16:44

Wednesday, Jan 26, 2005 at 16:44
I believe the 2.8td used the gearbox from the Nissan skyline car and may not handle the torque of the 4.2 I dont think it applies to the transfer case and rest of transmission though.
AnswerID: 94999

Reply By: Pezza - Wednesday, Jan 26, 2005 at 18:29

Wednesday, Jan 26, 2005 at 18:29
Hi selastic man,
Kesh is correct, the box won't handle it. We have a GU 2.8TD with with a worn motor so are doing research on conversion options now. Off road wrecking in brisbane will do a 4.2TD-gearbox combo with between 50 and 100 thou. k,s on it drive in drive out utilising my 2.8 intercooler for 12 grand. Alternatively a 4by specialist in ipswich will fit a brand spanker 6.5 turbo with box for 20-22 grand. Not sure about the workmanship of the wrecking mob as have had nothing to do with them. Will be doing more research in coming weeks. Also debating with the cook (alias BOSS) whether the V8 is worth the extra 10 G's.Will post decision and eventual outcome if others are interested.
P.S Am a new visitor and this is my first post after reading forum for a few weeks, so I hope this works.
AnswerID: 95006

Reply By: H2O - Wednesday, Jan 26, 2005 at 20:42

Wednesday, Jan 26, 2005 at 20:42
There is a 3.0lt on ebay at the moment. Not sure if you want to go there.
AnswerID: 95018

Reply By: Truckster (Vic) - Wednesday, Jan 26, 2005 at 21:23

Wednesday, Jan 26, 2005 at 21:23
Look at Brunswick diesel..

go with the 6,5 Turbo diesel Chev... $10kish for conversion drive in drive out
AnswerID: 95028

Follow Up By: Selastic Man - Thursday, Jan 27, 2005 at 08:30

Thursday, Jan 27, 2005 at 08:30
Thanks for the response guys, sounds like the 4.2 could be as much drama as the chev. I will be ringing around today to get some prices and advice, the problem i have is that spending the money to rebuild the 2.8 (not sure its worth it) v's conversion to a 4.2 or chev.
Maybe an option to put a V8 petrol in and then go on gas. Could be slightly cheaper option without sacrificing drivability.
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Follow Up By: Member - Davoe (WA) - Thursday, Jan 27, 2005 at 10:22

Thursday, Jan 27, 2005 at 10:22
16k including gearbox actually. There is one getting around kalgoorlie that had a 2.8 blow up and that was the all up cost
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Follow Up By: Truckster (Vic) - Thursday, Jan 27, 2005 at 11:40

Thursday, Jan 27, 2005 at 11:40
Considering AJ on here says his mate just picked up a 2.8 GU for $9k Im lookin for one too! It is becomin a good value unit to start upgrading... $16k for conversion, $10k to buy, $26k you have a MACHINE!
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Follow Up By: Member - Hugh (WA) - Thursday, Jan 27, 2005 at 15:22

Thursday, Jan 27, 2005 at 15:22
Truckster,

That's got to be the first positive use you've found for a 2.8 GU!

Hugh
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Reply By: Member - David C (QLD) - Thursday, Jan 27, 2005 at 09:00

Thursday, Jan 27, 2005 at 09:00
I have just done the conversion myself.

Firstly the gearbox WILL handle the torque as I have heard from a guy with LPG injection (Powershot 2000) and chipped and it has held up so far (10,000km). I ran a Motsons with mine (330nm) without problems to the gearbox. Saying that though I don't know if it will bolt up to a TD42T.

It is a little involved to do the conversion. I paid $10,000 to do mine but I got the TD42T, gearbox, mounts, instrument cluster, complete wiring loom and got to keep my intercooler (I had to connect myself though). Also had to pay another $400 for hoses, belts, shroud and another $150 for ratios (4.1's).

You have to move the engine mounts or manufacture a thick plate to position engine (one mount forward 30mm and one back 30mm). Change the gearbox crossmember. Need accelerator pedal and cable. Change ratio's to 3.9's or 4.11's depending on tyres. Muck around with wiring. Need to get the air hose and air cleaner lid for the TD42T, Muck around with the aircon and aircon idle up and a few other minor things. Best to find a doner car and do the conversion.

If I may say IT IS BLOODY WORTH EVERY SENT!!!!

Regards
David
AnswerID: 95084

Reply By: awill4x4 - Thursday, Jan 27, 2005 at 22:26

Thursday, Jan 27, 2005 at 22:26
The gearbox has to be changed, it won't bolt up to either the Nissan TD 42 or Chev V8 diesel, if converting to TD42 or chev V8 then use the TD42 gearbox.
Regards Andrew.
AnswerID: 95260

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