"
FITS  1965 1968 MUSTANG STANDARD GAS CAP SEAL GASKET ONLY !!
 CAP IS IN PICTURE FOR REFERENCE ONLY. 
2 1/2" OUTSIDE 
1 1/2" INSIDE HOLE
1/16" THICK RUBBER
I INSTALLED ONE ON THE CAP IN THE PICTURES ITS A 1970 FORD MAVERICK CAP AND FITS IT ALSO SO MAY FIT OTHER CAPS DO YOUR OWN RESEARCH BECAUSE SOLD AS IS NO RETURNS PLEASE ASK QUSTIONS BEFORE YOU BUY.
YOU GET 1 ONLY IN THIS ADD. BRAND NEW REPRODUCTION PIECE.