ha Bill was worryied about his power glide when i was a kid i had a 65 ford with a big 6 and a automatic id get going about 60 and do whats called back droping at 60 id slam it into reverse after burning 60 to 100 feet of rubber id slam it in forward burn a 100 feet or so found out you dont want to open the doors at this time heavy white smoke never hurt the tranny but i sure went through the sears warrenty tires what fun we had back in the old days i went through a 60000 mile tire in a month who said fords ant tough