The Napa by me didnt have any metric ones when I needed one. I ended up with 1" snap rings from there which are a tight fit. It takes some fiddling but they will eventually go on. I dont expect them to pop off again either as tight as they fit.

--Dave

1999 Rodeo LS 3.2 4x4 5 Speed
32x11.50-15 BFG T/A KO on US Wheel 94 series
3" Lift - Rancho 9000x
Rear No-Slip Locker
Flowmaster 50 series SUV 2.25"

There is a very fine line between "hobby" and "mental illness." - Dave Barry