Exactly. Increasing the diameter gave a significant increase in braking power for the extra 2 to 300# of the wagon. When my Mrs was driving my wagon back in the day I could not keep front rotors on it. She does not coast up to the stops like I do. An early 126 front ventilated rotor conversion would have been a good choice.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.