Thanks for the tip

I usually take my vehicles to Best Western Transmission in Colorado Springs. They have a patented powerflush system that works extremely well to keep our ol' GM transmission going.

I had 97 Pontiac Grand Prix that at 60K miles had its 2nd gear slipping completely. Took it in for a powerflush and never had a transmission problem again. Eventually the engine blew at 150K miles after having a million other problems... that was my first car & last GM.

It's good to know of another shop closer to home.