Does anyone have a set of the A-body motor mount biscuits that they can compare to the 72-93 truck biscuits. The new truck biscuits I have are measuring 1 7/16, and the valve cover is touching the heater box. I have an old set that are soft and cracked and they measure 1 5/16, so they will lose an 1/8th" with age, but if there was one that was a good 1/2" drop I would use them.