33 ended up ordering extra bevel sets from KHK for off-season swerve drive work. Our mistake is your gain! These 4 sets cost us $240 +shipping, we will sell all 4 pairs for $100 + shipping, or best offer.
One of the 18T gears has already been broached to 3/8" hex, all of the other gears remain un-modified; we can broach the other 18T gears to 3/8" hex for you if you would like.
PM me if you are interested.