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clinebarger · 08-31-2012, 08:19 PM

My 85 C20 Suburban has 12.5" x 1.28" rotors, The Caliper pistons are bigger than a C10 piston.....3.15" vs 2.94".

Tell the part store you have a 85 C20 with a "JB7" brake system.

08-31-2012, 08:19 PM	#2
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: Which are the bigger pistoned calipers? My 85 C20 Suburban has 12.5" x 1.28" rotors, The Caliper pistons are bigger than a C10 piston.....3.15" vs 2.94". Tell the part store you have a 85 C20 with a "JB7" brake system.