I recommend people using this stuff. It may be 10 bucks a quart but its worth it. I was having grinds on my h22 tranny going into fifth. BOY I was pissed. Went to a GM dealership, did a tranny flush, and I felt a tremendous difference. NICE AND SLICK IN ALL GEARS. IF u have grinds, go with this stuff. If u want details the part number is 12345349.