Drag Race TH400 4″ Tailshaft Large Yoke Reverse Shift Pattern Transmission Transbrake Non Lock-Up w/ Modified Front Drum and 300M Input Shaft (All Chevrolet) Designed for the serious full-tree bracket racer, TCI® Transbrake Transmissions deliver the quickest and most consistent reaction times in the business. These transmissions are blueprinted and built one unit at a time to ensure that you get quality parts. Designed for horsepower ranges of up to 750 horsepower, they are able to withstand the rigorous use of week-to-week racing and back-to-back passes. Available in both reverse and standard patterns (on select models only); Pro Tree versions are available and have a “neutral” reverse for safety. Full manual valve bodies with full race clutches & bands allow for quicker shift timing and the ability to run higher line pressures than with an automatic shift transmission Higher line pressure makes it more difficult for clutches to slip under high loads Oversized sprags & races (where applicable) increase holding capacity; steel hubs increase durability & strength Improved lubrication system increases amount of fluid sent to planetaries and internals Designed to handle up to 750 HP   Specifics: Revese Shift Pattern Includes 300M input shaft and modified front drum 4″ tailshaft with large yoke