3.4l under drive

[2000UltraZ]

does any one know where i can get a set of under drives for my 2000 grand am with the 3.4 any help would be great

[geoffinbc]

There are non that are made properly so don't waste your money. They all lack the harmonic damper that is critical to the longevity of the engine.

[2000UltraZ]

Im running the car in circle track race it only has to last 100 laps

[geoffinbc]

Then I think it was Fast Forward Performance that made them. If this is a short track the engine will be ok if it travels up and down the RPM range.