Shift Coupler Cover, 65-89 911 $39.95 Shift Coupler Cover - The new Rennline shift coupler cover is an attractive replacement for the stock cover. The Rennline cover is made of perforated 1/8" aluminum and comes with stainless steel hardware. This is the perfect item to jazz up the stripped-out interior of your track 911 or give that street 911 a race car look.