68 valiant signet

i dropped the 8 1/2's off for pcd alteration and also asked him to shave 1/2" off of the mounting face too. they're about 1 1/8" - 1 1/4" thick and i've had lots of slots that are as thin as 1/2" at the mounting face including the fronts i have for this car. i guess they cast them thick then machine them to suit the required back spacing.
neil.