i had a 2004R tranny put 50000miles on it a simple adjustment was all that was needed no gauges gizmos or line pressures were addressed it was a painless simple swap i never bothered with the lockup converter // was built for heavy duty and towing use from
www.fbperformance.com they've been building and racing these for many many years on the east coast// i had to part the truck after the oaktree fell on it and that tranny is still in use in a 2wd suburban here in town some 10years after it was built