I've owned this car since Jan,used to be a Vw Karman Ghia71 guy. Well here goes when I purchased the car it had mismatched tires front to rear. I replaceable two fronts to matcheck the rear. Still the hop vibration mostly from 20 to about 45 mph.since then four shops later and a boat load of money problem still exist. Front and rear brakes, shocks/struts and rotors have been replaced. The right rear caliper also has been replaced.The biggie, the sub frame replaced about to replace the rims on Monday. i'm sure this has been covered at some point i can't be the only one with this issue.anyone has any suggestions or remedies. MY first time out i need all the help I can get.

 

Take it to a mechanic that can properly diagnose the issue the first time.

Seems like you wasted hundreds of dollars. A lot of Z owners have mismatched front and rear tires (including myself) - I don't have wheel hop. Something is very wrong with your z then.

 

It seems like your mechanc is taking adavntage of you because most of those components would not cause vibration to me it sound like a driveshaft problem, being one piece shaft it may not be balanced. This is if the problem is when accelerating because if it is when slowing down the brakes would had been the solution

 

check the rear diff bushing, bet it is blown out

 

Did you check the alignment? There's a known problem with tire feathering and freeway hop on 350Zs due to alignment issues.

Mismatched tires front vs. rear is no biggie since most 350Zs run a staggered setup anyway. However if it was LH vs. RH. mismatched, that could pose some issues.
-Icer

 

were you able to ever fix this problem?

 

op hasn't logged in since he posted this

 

this

 

Car probably hopped off the road.....