This weekend my th350 started to act up. I am now having a problem getting the transmission into park. It is a 1968 Camaro that orginally had a powerglide in it. I swapped the th350 in about a year ago with now problems. I checked to make sure the linkage is all connected still, it is. It is a floor shifted car, so I took the lens plate of the shifter and it all looks normal. The car shifts fine when it is in drive. I can also manually shift the car through the gears. The problem is going from reverse to park, it just does not want to engage now, most of the time. Whats the deal?