I'll be driving down the road and go to nail it and the transmission slips real bad. I can change gears with the shifter and seems to grab and go. Also from a dead start if I nail it the transmission slips and the rpms go through the roof. But if I drive under normal conditions such as regular stop and go traffic conditions, its fine. Whats up with that?

 

Moving from LT1/LT4 Engine Tech to "Drivetrain".

 

Is this a 4l60e? You may have a forward clutch wearing out this s likley if it does better in D than OD how many miles are o it and whats the fluild look like?

 

Its got about 146k, and I just changed the fluid and gasket. Is this an expensive repair or commin.?

 

Its got about 146k, and I just changed the fluid and gasket. Is this an expensive repair or commin.? and is a 4l60e