We’re working with a 1996-up 4L60E transmission with a bolt-on bellhousing. This isn’t the newer, ... Shift solenoids and sensors all must be connected for proper function.

The transmission control sub harness plugs in on the passenger side for 4L60E and 4L65E applications while the 4L80E and 4L85E transmissions have the plug on the driver side. See All 20 Photos ...