Got an automatic transmission question that’s proven impossible to resolve? TCI® has got your answer! Our technical resource library contains lots of helpful driveline, transmission, and torque converter resources.

The dimension charts will help you determine which converter or transmission will fit into your vehicle or bellhousing. The band adjustment instructions and line pressure charts will help you to keep your transmission in top running condition. Need help getting your speedometer to read correctly? Our speedometer gear charts will provide you with  all of the information that you need  to get it back on track! We also offer gear ratio charts, a page explaining how the Powerglide planetary gear set works, and many other resources!

Don't miss our handy Racing Calculators page, and be sure to check out the articles from all of the major high performance magazines featuring TCI® products in real-world performance scenarios!

Want even more technical assistance? Be sure to call our TRANS HELP™ tech line at 888-776-9824 from Mon-Fri 8AM-5PM CST, or email us your question and ask one of our expert technicians for a transmission recommendation based on your specific vehicle!