1968 gto wiring harness | eBay Find great deals on eBay for 1968 gto wiring harness. Shop with confidence. Skip to main content. eBay Logo: Shop by category. coupe rear body tail light wiring harness 68 1968 Pontiac GTO LeMans Tempest (Fits: 1968 GTO) Brand New. $171. Buy It Now. Free Shipping. 10 Watching. Watch. 1968 Pontiac LeMans Wiring, Cables - carid CARiD offers a variety of replacement wiring harness resulting in excellent performance for your 1968 Pontiac LeMans. The harness is capable to withstand harsh conditions and substances, so it promises a long service life.