Either the trans with the Cheetah is a real tight trans or it the Cheetah VB fills in park, or maybe both. The Swinger sounds like most without the mod. Parking them on a upward hill makes them even worse. I had a 93 Dakota with a A518 and by the time it had 70,000 miles on it it was starting to drain back. Parked it on a steep hill once for a couple hours and it took it every bit of 45 seconds to fill the converter
