Thread: Td5 Auto. Will a V8 one do?

The gearbox internally is the same.

Originally Posted by Collins

The gearbox internally is the same.

And it should be the same at the back end, as the T/C is the same, so maybe I'm right about the bellhousing and convertor being the main difference?

I dont know about a td5 box but the tdi zf4hp22 auto is valved differently to the equivalent year v8, but maybe the td5 electronic part changes all that. I think i read that the torque converters are different as well, somebody more knowledgable than me should chime in soon.
Richard

The torque convertor and the gearbox electronic control unit differ, otherwise the gearbox itself is the same.
If you had a copy of RAVE you could confirm this. It is a very handy reference & can be procured via "Daves Shop"

The Bell housing is completely different and the Governer extension housing is different to the V8. Microcat lists different part numbers also for the extension housing
The TD5 one is longer in the part compared to the V8 one.
We recently had 2 side by side and it was clearly evident that the governor housing was different.

I not say they can't be changed, The TD5 gearbox mounting has bigger mounts, than the smaller V8 ones, hence the governor extention housing is longer in size to fit the mount ,if that makes sense

Originally Posted by Roverlord off road spares

The Bell housing is completely different and the Governer extension housing is different to the V8. Microcat lists different part numbers also for the extension housing
The TD5 one is longer in the part compared to the V8 one.
We recently had 2 side by side and it was clearly evident that the governor housing was different.

I not say they can't be changed, The TD5 gearbox mounting has bigger mounts, than the smaller V8 ones, hence the governor extention housing is longer in size to fit the mount ,if that makes sense

Don't suppose you've got one down in your factory in the gully??

"The ZF 4HP22 was used in both the 4.0L V8 & the Td5.
The ZF 4HP24 was used with the 4.6L V8 and is 15mm longer.

Different torque convertor housings are used to accomodate differences between the V8 & Td5 engine interfaces"

The above is extracted from RAVE.

Despite being the same gearbox, I was always under the impression that the TD5 and V8 autos were different in their setup, eg shifting etc and although they will drop in, they do not suit the other motor.