Part Number: PFEFI-81055

This 4L60E to 4L80E conversion harness allows for the use of a 4L80E transmission in place of the 4L60E when used with GM LS1 engines. This kit comes with an 18-inch transmission adapter harness and a 96-inch vehicle speed sensor harness (VSS).

Compatible with GM vehicles originally equipped with LS Series 4L60E transmissions, automatic transmission adapter wiring harnesses are used to retain all appropriate electrical connections to the transmission when converting from 4L60E to 4L80E.

Note: SEGMENT SWAP IN ECU IS REQUIRED. Will not work for 07+.