I have a 98 s-10 2WD 5sp manual 4cyl 115K miles ext cab,. vehicle shakes like crazy at 25mph and 50mph, independent of braking, engine speed, acceleration, or gear. Had tires balanced, no effect. by jacking only the R, and then L rear wheels off the ground independently, i duplicated vibration at wheel speed of 25pmh in both the lifted L and R wheel cases while car was sitting still. i heard no pronounced grinding when spinning tires by hand, noticed no visible wobble in wheel. driveshaft on this model is 2pc, going through center bearing. weight on rear driveshaft appears to be intact. no caked mud, visible cracks or dings in either driveshaft. all U-joints are solid. I dont know what to make of ~5degrees of freeplay in shaft (while in N) at (open) differential end. no leaks from dif or trans. any suggestions?
Aug 18, 2007 at 11:15 PM