Are these transmission box's interchangeable between models? for example disco 3 2.7 into a sport 2.7 or 4.2sc into a 2.7 and how about the L322 disco 4 etc. I've been on the look out for a lower mileage example but not sure what will fit. I have a chance of one from a 4.2sc ffrr. I'd have to use the mechatronic from my own box with it. 2008 RRS 2.7 TDV6 S Poverty model

I think the 4.2 maybe different.

Yeah I asked about using a D4. I think the answer was yes, but no guarantee.

Done some cross referencing and found that RRS 2.7, 4.2sc, 4.4 all have the same gear ratios the difference as i can see is the torque converter size. 255mm = 2.7, 260mm = 4.4, 280mm =4.2. Disco4 2.7 has same ratios and torque converter as rrs 2.7 and 4.0L has same but 260mm torque con. I can't find specs for the ffrr to compare though. 2008 RRS 2.7 TDV6 S Poverty model

The Supercharged (and TDV8?) had modified epicyclics in order to handle the grunt. But that wouldn't cause a problem if used in a lower output model. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

You'll need to swap over the mechatronic unit also - e.g. keep the one that belongs to your car. Unless you feel like re-coding the new one to your VIN. That's the easy part of course! Every home should have one!

'06 RRS SC Rimini Red
'04 Audi S4 Avant
Escort Mk II Sport