Stalls in Gear, Automatic- Restarts Good- Can Slam it into Gear! EEEK

Saw this happen to a dodge truck once in our shop
Turned out the centrifugal advance weights were stuck in the fully adanced mode. Truck would stall as soon as you pulled it in to drive.
Drove the owner crazy and stumped the dealership mechanics who looked at it and said it must be because the truck was on propane.