727 burn outs- Always start in 2nd--quick shiftto 3rd gets wheel speed up fast and the sprag is safe do one in first and when the wheels hit dry and chirp that sprag gets Whammed!!! Sooner or later it fails--it is press fit into case and has a small set screw to keep it from spinning--the bolt ins are a repair item not fool proof at all IMO. Most Mopar guys have blown at least one before we discovered the weak link NO first gear burn outs and you are safe as can be.
