Source for seal information?

[r0nin89]

I need to find a seal for my truck. I have a part number for what from what I've read is a single lip seal. I'd really like to find a double lip seal of the same dimensions.

Anyone have a good database for this?

Btw is the common 472-572 thats used for pretty much everything gm with a 32 spline output...

[r0nin89]

Well this does apply here since theres quite a few 2wd trans that use this seal too. The double lip equivalent to the 472572 is a SKF 18771 and is available through rock auto.