Tail Light Bulb Sockets

I didn't like how deep the stock bulb sockets protruded into the interior. A buddy of mine told me about certain 3rd generation Firebirds & Camaros that used a right angle bulb socket so I did a little research and found these. The right angle three wire stop/turn/tail light socket (upper one) is GM part # 12003759 and I'm not sure what vehicle it fits. The backup bulb socket (lower one) is the one that fits the G-van tail light housing (the ones I used) and they are part #12027133. The guy at the parts counter of my local Chevy dealer is great and doesn't have a problem chasing down esoteric stuff for me.