This is a NON factory EXTRA Large 1 3/8" front sway bar..   the largest GM put out for these was 1 1/4".. so this is more competition born rather then optionally factory large etc.

Front sway bars came in various sizes.. mostly from 15/16' , 1 inch, 1 1/8th, 1 1/4"  ....but the largest factory unit on some of the late to be especially released were often 1 1/8th, 1 1/4" .

So this one at 1 3/8" is bigger again and about as big as you can fit period.

  This 1 3/8" Kit   is a full kit, including polyurethane Link kits and D mounts and brackets for the complete mounting or upgrading of any you may have fitted.

Delivery is additional on sway bar kits.. they are heavy bulky kits. Courier/truck freight only.. average $36 .. Too Large for Postal service and no COD..

Mind you..   sway bars are made locally.. you MIGHT be able to get something to suit you .. but size and standard of accessories that go with this correct kit make it pretty ok.