Desert Rat, the G-clip in the 2nd pic looks like what came stock in my Grubee Super-Rat, as well as the GT5A top end replacement I got when my 1st motor took a $hit on me. Clips held up when the bearings came apart & grenaded, so I can testify they can withstand abuse. Rudz, (or anyone else reading this), if yours come loose, regardless of type, check out the groove in your piston, that may be your real problem. A new slug may be nessisary. These China Bombs aren't exactly known for their high standards of quality, ya know?