thumping noise while driving
[95 civic ex] while driving, my cars making a weird thumping noise. sounds like a flat tire. all tires are 45 psi, no screws/rocks whatever in them. as i give it more gas, the thumping occurs more rapidly, so its something to do with the wheel. lugs are tight, studs are only 2 years old. uca and lca bushings are okay, starting to dryrot a bit, im looking to replace them in the near future anyways. theres a 2-inch hole in the trailing arm w/ a rubber bushing in? i think, anyway, it bolts to the car on either side of the trailing arm, and theres spots where the rubber is rotted out, you can see through. could this be causing it? if not, what is this piece called anyway? looks like it needs replaced.