I have a 99 F150, 4.6 2wd with a 4r70w tranny that was rebuilt a few months ago. Ever since the rebuild I noticed it doesn't coast like it used to. It feels like there is too much engine braking and it slows down faster than expected. It is a pretty slight difference and I did have the upgrade kit installed. Does this seem normal? Did the upgrade kit alter the freewheeling characteristic? It only seems to happen in overdrive on the freeway when I let off the gas.