This is the perfect transmission for your heavy-load trucking and towing needs. Works with 2WD vehicles with engines that range from 450 to 550 HP, depending on the application. These units have valve body modifications that increase cooler flow and improve shift characteristics without the harsh feel of a racing style transmission. When used with a TCI® Heavy-Duty Towing Torque Converter, you can be sure the transmission package is tailored to provide long, dependable service and maximum fuel economy.
Part Number 311600:
Features a 4-bolt dust cover
For use with pre-1980 New Process 203 or 205 transfer case