Compatible with Transmission Wire Adapter Harness Connector 4L60E to 4L80E LS Swap Chevy Silverado Sierra Trans 1998 to 2006 Transmission, Plug and Play Adapter Harness Kit

Harness was advertised as “plug and play” but was only so after I had to de pin the connectors, re wire it and then it worked. Caused issues and confusion when I first tried to drive with p0758 and p1810 codes. After spending hours researching wiring diagrams, I found more than half of the wires were misplaced. Cheap Chinese garbage. If I wanted to de pin connectors I would’ve just used my factory harness connector. What a waste of time and money. This trash company should stop selling altogether before they mess up someone else’s vehicle.

Main harness for trans adapting did not work, threw all kinds of codes. Unplugged it, repinned factory connector and all issues went away. Parts sat too long in prep of swap to return, in the trash it goes. $43 for a 2 pin connector was definitely not worth it

Absolute piece of crap truck made it 40 feet started throwing codes pin fit was crap and crimps came undone on transmission plugRepinned the brown wire taped off the white wire from original 4l60e harness all works great without this product

The main harness made everything read wrong and went to limp mode. Just do the wire change on the stock harness