I got around 150,000 out mine. Bear in mind that I only owned it for 25k of those. These trans fluid was in bad shape when I bought it. I changed it once (drian and fill 3 times) & one other 12,000 after that. After the first fluid change I added a bottle of Slick50 HighMilage to it.
At 150k, the chain broke. This was not caused by ill service. I posted a link here (you might have to search the archives) on a TSB by Carquest on this topic. The collar on the drivers side CV Shaft wore out. This caused misalignment between the main drive gear and the Overdrive Plantery gear. In other words, slack on one side of the chain and over tight on the other. Simple cause and effect.
I knew of many problems with the ATX's on this car, but most of them was before the filter redesign. Check out
Filtrek for info on that.
As I have learned over the years. If you don't sweat it, you won't loose it!
Phillip Jackson
Smithville, MS
98 Mystique LS
Stock as of now, oh but you just wait!!
01 S10 Xtreme, 4.3l
98' Contour SE with some mods
96 Cavalier (beater)