904 differences

thanks guys , I'll try calling NAPA but I'm not holding my breath on them , the last time I walked in there the pretty blond girl didn't have a clue what I was asking for or how to type what I was asking for into the search function in her computer LOL but damn she looked fine if your buying off the shelf she's your girl , thats why I have a go to guy at another store who is a car guy and has been since the early seventies .he'll know about the chevy retainer but probably won't be able to see if the seal he can get has the boot or not .