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From: Hank Dozier
Email: dozierhc@aol.com
Date: April 18, 2002
OK...Here is the LONG answer. Depends on the Service Manual (and the Country). A 1955/56 Chrysler Manual quotes a bonded lining with the 5/32 nominal, and a clearance of 0.015 to 0.020 inch. A 1955 DeSoto Manual quotes 11/64" for bonded lining, same clearance. The 1956 Manual is 11/64" (0.016) new, 0.010 to 0.020 clearance. The 1957 Desoto Manual quotes the 5/32" wit 0.01 to 0.02 clearance. The Torquefilte Introductory booklet is 7/32" and 0.008 to 0.012" clearance. The CANADIAN 1956 Manual qoute the 11/64" new with 0.015 to 0.020" clearance, and calls for the same for BONDED lining replacement, and then states for RIVITED linings to drill 4 stepped holes to half-depth using a 7/32" lining, and to renew the drum to 0.008 to 0.012" clearance by grinding. I have a rivited lining on my transmission handbrake. Therefore, IF you use the rivited replacement, the lining is slightly thicker and you true the drum. If you bond a new lining to the backing plate, then it looks like 5/32 to 11/64 is ther measurment, with a slightly greater clearance (most likely due to eccentricity of the bonding. I measured my thickness, and it seems to be about 0.0185 to 0.0197" depending on how you place the depth mike on the surface.
