starchland

Lately Ive been noticing some symptoms that seem to be coming from the rear 76-78 mph roughly there will be a decent shimmy or shake from the rear when cruising, doesnt really change when accelerating or changing gears. Seems to be transmitted by the shifter/seats as it shakes as well. Also when braking moderate to hard there is also a vibration/pulse that seems to come from the rear as well. Light braking is fine. I have swapped the buckets (no pitting noticeable!) also I have the spacers as well. The axle nut torque I have done as well. I have ruled out tires/balance. suspension area I have checked/tightened. wheels and bearings are tight. diff/tranny/engine mounts seem to be in good shape. tire pressure is fine. what else can I check for before taking her in? poor alignment? blown shocks? some type of bearing going out? outer axle joints shot? seized caliper? Im at a loss. thank you

zeroptzero

under braking it could be warped rotors, I'd also check the guide pins for proper lubrication, and make sure the guide pins were put back in their proper location. Some people don't realize the guide pins are different from top to bottom on all 4 calipers. On the vibration at higher speeds, they generally say if you can drive in and out of a vibration by changing speed it is usually a wheel/tire balance issue, though I know you've ruled that out, just saying.

starchland

I will double check the balance to be sure. Ive had 2 sets of tires on the rear with no change. I will look at the calipers. Do you think its possible the rears are getting that hot ? I say its coming from the rear because I never felt a shimmy in the steering wheel and the pedal never pulsated.

Saki GT

Are you sure the tires aren't cupped?

starchland

tires are wearing evenly on rear.