Hi everybody, I took my Son's Bronco over to have the rear main and oil pan gasket replaced. The mechanic called and said that they checked the transmission fluid and it looked brown and smelled burnt and suggested we rebuild the transmission now while it was pulled to save the labor. Estimated cost of $2200-$2500 depending on what parts would be needed when opened up. When we bought the Bronco back in April, we smelled and looked at the fluid and did not notice any heavy smell or overly brown color. I will say that we may have felt a slip one time at a heavy acceleration going about 20 mph. I wasn't sure if it was a slip or just the engine kicking in when the pedaled was depressed. Bronco has 151K. Wondering if we might be able to get by for a year or so, while my Son saves some money? For the most part, he should only be driving around town. Thanks for your help.