I have a 99 Blazer 4.3 2 wd. i have used search with no luck. I stoped at a traffic light and when i started to move the trans did nothing, it would not move , i put it in nuteral and back into drive and it worked fine. I got home and checked the trans fluid thinking it was low but to my surprise it was about a qt to full, remember this is a 2 wd. the slipping seem to be getting worse so I have decided to park it until in can find out what is wrong and not do damage to the trans. Thanks for any help