LS1 Stand Alone Harness | eBay 1997-2002 DBC LS1/LSX Stand Alone Wiring Harness With 4L60e Transmission. 1 x 1997-2002 DBC LS1 Stand Alone Wiring Harness With 4L60e Transmission. The harness is built for the 5 wire LS1 LS1/LS6 Stand Alone Engine Harness -Cable Throttle - CPW Harness was for LS1 with T56 and is absolute top notch! Can’t say enough good things about this harness. If you have some time with your build like I do, then I would definitely suggest getting a Stand-Alone Harness from these guys.