I have a 2000 Ford Ranger XLT 4.0 with an automatic transmission and 96,000 miles. Six months ago, I went to a local lube place and they recommended a transmission flush with a new filter and fluid. I did that and within 3 months the trans was slipping. I took it back in and they flushed and replaced the fluid. After that it was worse. Now in the mornings when I back out my driveway and try to go forward the transmission will go into gear then go out and do this about three times. After if warm up it doesnít do that but it still slips (even more so) going into 3rd and overdrive. A transmission shop said the flush may have washed away part of a seal or other things. Also, they said maybe the filter was not installed correctly. But most likely itís just old and I need a rebuilt and it wall cost $1500. What do you think?