And, in addition to what Lars and Chris said - the stock shifts on this machine are "sloppy". There is a "pause" before anything at all happens. Even canned tunes will do a lot to eliminate this pause.
But, with a truck as old as yours, I'd sure make sure your transmission is OK before trying to "patch" it with a tune. A tune is not going to fix a sick transmission.
- Jack
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2024 F150 Platinum SCrew 3.5L PowerBoost FX4, Peragon Tonneau Cover, LineX Bed, 35% Window Tint on All Sides and Rear, Full Nose Paint Protection Film, Husky Mud Guards, Lasfit Floor Liners, VIOFO Dash Cam
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