Rear main seal was shot so I replaced my TC with the #518-89 from DTT. 6000 miles later and what a difference! I talked to quite a few people about TC upgrades and nobody really gave me a warm fuzzy. I finally talked to Bill Kondolay at DTT (everybody out there for that matter) and he was extremely professional and explained everything to me in detail. He explained the valve body upgrade as well and worked with the transmission shop that did the work. My truck used to race up to 2400 RPM and go nowhere but not anymore... that power goes to the road. It's a different truck. Do yourself a favor and be sure to talk to Bill when your doing your research.
P. S. Gale Banks should take all his employees up to see Bill for some customer service training.
P. S. Gale Banks should take all his employees up to see Bill for some customer service training.