Jeremy,
Unfortunately, the rear cylinders are actually "longer" than the front cylinders eventhough they have the same bore diameter (see my pic). The front is a 12" drum and the rear is a 14" drum; take that into consideration as well.
To be honest, the price difference for me was $20. $50 for front, $70 for rear. Fronts were purchased from Chevsfromthe40s and rears from Jim Carter Classic Truck Parts as mentioned above. Best deals I could find. Local Auto Parts Stores are going to list them more expensive, and they'll have to order them anyway. I recommend you order them online from the same place as me. Shipping was fast from both places.
