Quote:
Originally Posted by Captainfab
That Autozone link does not specify which thickness rotor that caliper is for. An '84 could have either the 1" thick rotors or the 1.25" thick rotors. I'm pretty sure the '78 only came with a 1.25" thick rotor. You want the D52 caliper for a 1.25" thick rotor. One way to ID a D52 caliper is that the center to center of the slide bolts is aprox 7" and typically has a 2-15/16" diameter piston. The JB/JD7 calipers have a 3-5/32" diameter piston.
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Do you know the vehicle application for the JB/JD7 calipers with 3-5/32" pistons? I have never seen a D52 caliper with anything different from the 2 15/16" piston. Thanks.