Quote:
Originally Posted by John Deere Racer
3.90 gear atleast would help
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Not necessarily. 3.90 gears might make it feel worse. The OP doesn't just have a slow speed surging problem. His car is having problems up to 2500 RPM. 3.90 gears would put less load on the motor, and that might make the surging feel more pronounced. Even with 3.90 gears, He would still be below 2500 RPM on the highway.