[edram454]

the zr1 zf 6 speed trannys are not delicate at all. they were based on truck transmissions and take quite a beating but being in a zr1 lt5 car it is going to take a ton of abuse. My car has 45k miles and the previous owner put it on the track for some track sessions and it still performs like new. he replaced the clutch etc.. but the transmission still works fine despite hard abuse. During the introduction of the zr1 in europe, Jim Ingles did constant transmission clutch poppings and burnouts etc.. and the car never broke. The porsche broke a half shaft and other cars were showing signs of wear but the zr1 never let up and performed great the entire press gathering. The car was praised by the germans as being a "hammer" which to them means far beyond expectations. The transmission is always going to be the weak link in the drive train in any car so it is not surprising that they break most often. I think the zf 6 speed tranny is a great tranny and was considered state of the art at that time.

ed ramos #3028