What size snap ring is used to hold the fuel regualator in it's housing?Is it a metric size or what?

 

It is the same snap ring that 95% on GM cars use to hold the regulator in the fuel rail. If you need one you can go to your local GM dealer and get it or just go to the junkyard and get one of a gm car or truck.

 

Ditto, I can get you the part number tomorrow if you would like.

 

I popped the snap ring out and headed to the hardware store,I didn't even think about it being different,guess I'll go by the dealer in the morning.