As has been stated before the ONLY time transmission problems have occured has been shortly (under 1 year) from fluid replacement. It is highly recommended from the EXPERIENCED people here to never replace transmission fluid.

My transmission went out 3 months after Isuzu did a fluid change on my tranny. Under1 year after original tranny rebuild Aamco had to do a second rebuild on my transmission. I struggled for months trying to get the tranny level to not fluctuate, and finally felt like I was close, and stopped. That was 4 years ago and have not touched the tranny since and never will again!