Interesting development...
Over at Protouring.com, a company called Power trian control solutions came up in discussion.
they make a valve body that converts a 4L80E to a six speed using the overdrive gear as a gear splitter.
Talked to the guys at PTCS just now...
Take it for what it's worth...
I guess they developed the valve body for a military application that, according to the tech guy, was far more brutal on the trans than what I'd subject it to.
Since the car is only driven <5000 miles/year, if the long term durability of the transmission is even partially degraded (which they contend it isn't), seems like it would still last me a long time.
They're stuff to do the conversion is ~$2000 (controller, paddle shifters, valve body, and harness). So if I can get a low mileage used factory GM transmission for ~$1000 or less, could probably do this pretty cheaply. Probably would get the lower gear set too from TCI for $900.
|