The Camaro will work since both it and the old 48 rear are about 61" mounting flange to mounting flange. If you ordered you CE MII with the 4 3/4" bolt circle on the rotor then one spare will fit front and rear. The S10 4wd is a 6 lug and still too narrow without spacers or less wheel back spacing. Haven't used the later disc brake Explorer but the early ones had the 5.5" Ford PU bolt circle.
