New sending unit leaks at lock ring

are you guys using the lock ring wrench or are you just hitting the tabs with a screwdriver and hammer? i dont have the wrench and i cant seem to get the snap ring on fully to the stoppers. it's about an 16th away from the stopper. as soon as i put gas in it's leaking. i did use the original snap ring with the new rubber gasket provided

Necro-thread revival! :)

I know what tool you're referring to. I don't think I've ever seen anyone use it. I have a spanner wrench that fits these, but I typically just use a punch and knock it home.

Not sure where you got your setup from, but those Chinese lock ring repops are hot garbage. I've never had one that didn't leak. There's a vendor on here that sells the NOS OEM ones. I think his name is Halifaxhops. I get mine from him