i need rings..

my 340 run 13's on slippery street tires, lots of tire spin going on..
:read2:

broken ring?-if you have a ridge in the cylinder thats what happens when you pop it out the top of the block, the ring catches and breaks.

Haha so does my Neon SRT-4 I mean tire spin entirely through first and a little of second. But anyways yes that is what happened. It caught. So i could just get a Set of 3.940 bore rings from Summit? What about the thickness of them?