In a message dated 6/9/02 1:05:52 AM Eastern Daylight Time, Whalt@xxxx writes: << It is unclear in your post -- have you actually tried using the Grainger collars on your car or are you just speculating? I got the idea myself to use pillow blocks from Grainger, but that would require some machining to cut off or mill off the lip meant to hold the bearing centered. I never bothered to check if they sell collars. That would be a lot easier to use. >> Walt, No I haven't gotten them yet. But I think I'll try them when I pull out my $19.00 Napa Gas Deluxe rears and put in my new $24 Monroe Sensa Tracks. Jim