Hy guys, as 64Pete said trucks larger than one ton did not have provision for parking brakes at the wheels, from the mid fifties on the parking brake was a P.S.P.B. [propeler shaft paking brake], hope that explains it.
Here's a couple pics of the parking brake on my SM465.
It's from a 1980 Chevy or GMC stepvan.
http://pbckt.com/s2.KisAs you can see it is a drum brake minus the wheel cylinder.
Not visible is parking brake cable entering rear.
Looks like it uses 4 of 6 stud holes to mount driveshaft yoke.
Cost cutting or a better idea?
Pete
