Hey all! Haven't been on in a while but I have a question. When I am driving my lifted 1999 Suburban on the highway at about 70 plus mph my front drivers side tire starts to bounce a lot. It's almost scary sometimes. I have had all 4 tires balanced recently thinking that might work but it didn't When I bought my beast the prior owner said she'd been sitting for about a year because his wifey ran it out of water. Could there possible be a flat spot on the tire causing this or maybe a bent wheel? If anybody has any ideas as to what may be causing this please let me know, it's very annoying.