okay when im driving it seems like im driving with a flat tire/im running over a cat every half a second... all the tires @ 35 psi.. i cant think of what could be wrong? any ideas??

 

stock suspension?


try balance/alignment.

 

Have you checked the road for dead cats!??!

If you can pinpoint if its rear/front, left/right, pull the tire and visually inspect the suspension parts, make sure everythings where it should be and all in one piece.

 

Broke belt in tire possibly, check for lumps on your tires.

 

What tire and wheel size? Tire model? What suspension? When did the problem start happening? Did you do anything that might have caused it (i.e. hit a curb)?

Have you tried to determine where it is coming from? Front? Rear? Left? Right? Isolate the problem. Rotate tires. Check tires for abnormalities (blisters, flat spots) Have wheels balanced, and checked for straightness. Have an alignment done. Check wheel bearings, axles, and suspension components (especially springs and dampers) for damage/leaks/failure.

 

i once had a bolt stuck in one of my tires that made a similar noise/feel to a flat tire (1/4 head was sticking out)