Originally Posted by
TheGanzman
Whenever I hear about a (modern) auto transmission "failure", I always ask two questions: What has the service history been on the transmission? (Usually NONE!) What have the driving/towing conditions been?
The modern automatic transmission is virtually bulletproof, no matter WHO makes it. GM, Ford, and Chrysler ALL make fine transmissions; many people don't realize this, but Rolls Royce apparently thought that GM's Turbo 400 was good enough to put it in THEIR cars!
The GM 4L30E transmission is a FINE medium-duty transmission; no it AIN'T a 4L80E, but with proper care and attention (like changing the fluid/filter once every 50K miles!) it should last 150K+ miles. I'd bet a cookie that the transmission in question either has an unknown service history, or NO service history...