So get this! I take my wheels off for the winter/school season, and im drivng down the highway and from 68 mph-80 mph i get this shaking, but its smooth before and after that range. Its only with my stock rims and tires, never felt it with my rims. I think it could be either my tires, or a bent rim? Somoene help me out. I also notice i need an alignment if that makes any difference. thanks guys

 

u may be missing the balancing weights.
usually when the shaking stops after increase speed it is the wheel balance.

 

^^^^i agree. When i was working at pep boys a guy had the same problem they just rebalanced the tires and i think it was solved.

 

+1, also check for dry roted tires, bubbles or flat spots. this can happen If they've been sitting in the same position for a long time.

 

ugh, thats not that wierd...

 

happens all the time to my friends that for offroading in there jeeps most of the time they end up fuckign up there wheels while offroading. That is if its death wobble. Also check you pressure on your tires, and make sure when you put on your stock wheels that you kiddy cornered the lug nuts when you put them on. that can cause the wheels not to be square.