The issue I see is that #1: the lug that fits into the lever isn't square with the lever and 2: there's no washer under that cotter.
I prefer washers under cotter pins because I've see the use of the 'thing' wear through the cotter pin at inopportune times. If you straighten up the angle of the dangle, you should be able to fit a washer on there.
My dad is Master Lock and Key in Longmont.....He's a cranky old bastard but he's knows what he's doing and he's SUPER particular. He's a also a Chevy guy, so pick your poison, but I bet he can impression a key and save you a buncha hassle.
(Don't let him see your Hillary '16 stickers)
