Chrysler 45RFE Low/Reverse Bonded Piston and Spring
Transtar Part Number: D72967A
Transtar now carries the low/reverse bonded piston and spring for the Chrysler 45RFE transmissions years 2005-up. The low/reverse piston and spring, D72967A, will retrofit to 1999, but only as a set. During the change to bonded piston, the return spring diameter was increased and will not work on the older aluminum piston. The D72967A currently contains the piston and spring.