What front sway bar will fit 66 Chevelle I am looking for one in a junkyard what other late modle cars will work?

Any 1964-1972 GM A-body (Chevelle, El Camino, GTO, Lemans, Cutlass) will work and any 1970-1981 GM F-body (Camaro, Firebird) will work.

The later 70's z/28 and WS6 Trans Am's had 1 1/8" or 1 1/4" front sway bars that are very desirable. On my '72, I have an 1 1/4" front sway bar from a 1979 Firebird Formula. This coupled with the stock 7/8" rear bar really make the car ride nicely.

Thanks