Thread: What Diesel to replace V8 in Disco 1

Originally Posted by Tank

Are these boxes (TH400,700r4) more suitable to go behind an Isuzu 3.9 than a ZF 4sp V8 box, have they been modded to be suitable to go behind a 3.9, Regards Frank

Justin has destroyed 2 ZFs behind a 4BD1 I believe. There seem to be plenty of people in the US who are using the TH400 and 700r4 with success.

If I wanted an auto behind my 4BD1 I would use one of those.

Originally Posted by Tank

Has anybody done this conversion, if so, what needs to be done with the wiring, do 300TDi's have a computer, I cant see any reason they would, so what's involved re: the wiring setup, Regards Frank.

I swapped a 300TDi into my 93 RR Vogue. The easiest way to go is get a TDi 300 and auto box as a unit, However you need to be 100% certain that it is a TDi box. This is the way I went but it turned out that the box and TC were actually V8 items. I have now been off the road for 12 months. Hopefully Blknight.au will have me back driving fairly soon after I bit the bullet and got another box and TC... this time guaranteed TDi items.

Anyone looking for a reconditioned ZF and TC to suit V8 ??

Originally Posted by loanrangie

Marks do a TH400 to lt230 and i think they are the same as the 700r4 in the extension housing area.

That's the one.

Originally Posted by loanrangie

Marks do a TH400 to lt230 and i think they are the same as the 700r4 in the extension housing area.

Nah they are different, been there tried that, 700 is the way to go.

Originally Posted by 51jay

I swapped a 300TDi into my 93 RR Vogue. The easiest way to go is get a TDi 300 and auto box as a unit, However you need to be 100% certain that it is a TDi box. This is the way I went but it turned out that the box and TC were actually V8 items. I have now been off the road for 12 months. Hopefully Blknight.au will have me back driving fairly soon after I bit the bullet and got another box and TC... this time guaranteed TDi items.

Anyone looking for a reconditioned ZF and TC to suit V8 ??

What are the distinguishing features that help you tell the difference between the TDi and the V8 boxes, Regards Frank.

Externally I don't think you can tell the difference. The TCs are different in appearance though, once you separate the box from the engine

[QUOTE=Tank;685192 I believe the 3.9's are harsh on autos, they must have unusual power pulses or something, Thanks for the Ideas, Regards Frank.[/QUOTE]

the suzis are harsh on everything, an alison box can be made up to work but you need a super heavy duty torque converter. They dont so much kill the box as mangle the TC.

Originally Posted by Blknight.aus

the suzis are harsh on everything, an alison box can be made up to work but you need a super heavy duty torque converter. They dont so much kill the box as mangle the TC.

I wonder if someone like Dominator could knock up a Super Duty Torque convertor, I'd imagine a tough flex plate wouldn't go astray either, Regards Frank.