Hi everyone , I have a 2000 expy..5.4. I just had new control arms, upper and lower ball joints, front brake pads and an alignment done. When I get on the highway and accelerate it pulls hard left, and when I let off the fuel it pulls right.....any ideas? Not noticing it on local streets.....might just be not as dramatic at low speed...

 

Take it back right away, they did something wrong. Plus it is dangerous.