luckyZ13

77 280Z. i know i need new bushings and shocks and i just replace the brake system. hit about fifty and shakes like no other.tires are balanced and wheels are true. ball joints? I don't have a clue. thanks everyone!

NismoPick

Get the tires re-balanced.

zstreet86

most likely one of two things, either you need to get your wheels balanced, or you may have a bent rim (balance can't fix)

Niku-Sama

where did you have them balenced at?

snwbrderphat540

or alignment

theramz

Zs are very sensitive to this because of the way the rack is mounted. What you have is a "dynamic imbalance". The tires must be balanced with weights equal on the inside and outside of the wheel. Otherwize you get a gyro effect at about 45 to 50 mph. Take it back for a correction or get your money back and go somewhere that knows what they are doing.

Niku-Sama

i think arizona has les schwabs, thats why i was asking where you had them balenced at because they suck at balencing them. they will only go up to 50-55mph and often thats not enough. several times i tried having them balence my wheels and they could not do it and the guy said he drove the car....on a 45mph road. i asked him if he went over the speed limit and he said no. i knew he would because of their insurance.