There is news from Down Under in Australia...... A second automatic gearbox has been identified that fits and works readily in P6B (and P5B). In the UK and Europe, the upgrade to a ZF HP22/HP24, sourced from a Range Rover, is an established retro fit. That gives an additional overdrive 4th gear and lock up on the torque convertor. Both highly desirable. But the ZF has a very clear idea what gear it's going to let you drive in, it isn't possible to back off the throttle to encourage the box to change up.... So while it's a huge improvement, it isn't the perfect solution.
The Holden VN model Commodore came with a 5 litre V8 and a GM Turbo 700 4 speed auto, cable controlled and with torque convertor lock-up. The big news is that an adaptor has been identified to couple this transmission to the Rover V8. I've linked the supplier in the first reply below.
Given this adaptor, it should also be possible to source the transmission from the USA.
The adaptor is supplied here:
Rover v8 - BELLHOUSINGS & ADAPTORS
Further info on the transmission here:
GM Transmission Resource
and here:
Turbo-Hydramatic - Wikipedia
The Holden VN model Commodore came with a 5 litre V8 and a GM Turbo 700 4 speed auto, cable controlled and with torque convertor lock-up. The big news is that an adaptor has been identified to couple this transmission to the Rover V8. I've linked the supplier in the first reply below.
Given this adaptor, it should also be possible to source the transmission from the USA.
The adaptor is supplied here:
Rover v8 - BELLHOUSINGS & ADAPTORS
Further info on the transmission here:
GM Transmission Resource
and here:
Turbo-Hydramatic - Wikipedia