I have a 99' Silverado 1500 w/ a 4.3 V6 and I am almost certain its got a 4L60E. I need to tow a car hauler next summer (5000 lbs total). I am also planning a RMTurbo on the truck for more power and now my concern is the tranny. The truck is also already factory geared in the rear cause of the V6. If properly cooled will my tranny survive? A new truck is not in my budget and this truck will be paid off in about 10 months.