While these are pretty reliable, when the A/T cooler goes it takes out the
transmission, a $2000-$3000 repair. There are plenty of good oil to air
cooler options, and they are easier to install. I have the one German
Transaxle assembles and recommends, and it's the same one they make for Go
Westy (and included now on all their GT rebuilt automatics), but without the
thermostat bypass. That's only needed where the winters are very cold.

At $250 sans T-stat it's one of the cheapest options, and you can order from
them directly (it's not on their website).

Stuart