Hello,
Can anyone tell what the correct code should be on a 1968 Chevelle SS 396 convertible tire rim??
Thanks

It's according to which wheels and brakes your car has
Rally wheel, disc or drum 14 x 6 JJ Code XB
Std wheel, drum brake 14 x 6 JK Code 6
Std wheel, disc brake 14 x 6 JJ Code XE
Info from "Chevrolet by the Numbers".
BillL