It takes the computer a few miles to relearn proper shifting when you disconnect the battery that long.shifts seem slow but I just had the battery pulled for a week while the engine was pulled. Doesn't seem like a slip that's for sure.
Lets put it this way, its going to work all the way up the point where it breaks.
Was it modded or beat on until that 136k point?Had the car for about a year and a half and at 136,000 she started to slip. Got it rebuilt and at 155,651 shes doing great (thank goodness)