My discs were smoother than those in the pictures. Our measurement of the one sided discs was 3.13. The total wear on the two sided discs plus the wear on the plain discs totalled .025 for a total of 3.155 so we figured that we could use the 3.2 one sided disc and compensate for all of the wear and then some. I bought two of the two sided discs so we have that flexibility and we can take material off the one sided disc if needed. Also there is some adjustment available with the friction modifying additive, I believe.

Does this sound OK to you?

Tom W

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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.