Studebaker Wiring Harnesses & Other Cables 1/2″: All cars & trucks use as required, this is an open clamp, secured with a bolt & commonly used to secure wiring harnesses to the firewall and floor pan $2 190177 studebaker wiring | eBay Find great deals on eBay for studebaker wiring. Shop with confidence. Skip to main content. eBay Logo: 1948-1963 Pontiac Modern Update Complete 12v Wiring Harness (Fits: Studebaker) Brand New. $254. Buy It Now. Free Shipping.