[d16dcoe45]

If you run the 36t pullies with the 18 tooth center pulley the belts will be too long. Even if they fit, it would leave you with a 2.00:1 drive ratio and you would have to run a smaller pinion to compensate. Also, if you only run one 36t pulley--the end you run it on will be overdriven--can be good and bad depending on how you drive. Also, I believe the 36t pulley only takes 8 diff balls.

Look hard on your shafts, I bet the gold looks very light and silvery. I would be surprised if you had zero loss of the nitride coating.