Ok, I need to clarify. The pop is so hard that the vehicle almost stalls and does literally "jump" once whatever is bound up releases. It also has done it in the sand and mud, but not as much once on the roads. I ran these tires for 2 years before all the mechanicing went wrong. Can tires get out of size by running or sitting? <img src="/forums/images/graemlins/confused.gif" alt="" />

I have had this jeep since 86' and have run it on shell roads before in 4wd with no problem, so I don't know that it is the road that's doing it. Just some more tidbits of info. I thought I'd add. Thanks for the responses.

Duece