Just finished installing the new secondary on my 121" '03 503. It didn't take a whole lot to get it bolted on. The spacer between the secondary and the frame was 1.3". Had to turn it down to 1.1" for the secondary to line up. This put the shaft out the front of the clutch just far enough to have the desired play. Had to take the stock key and machine the exposed part down to .25" to fit the new secondary. I may just have the secondary machined to fit the stock key. I may need a slightly shorter but wider belt as the secondary is adjusted pretty much as narrow as it gets and there may be a little to much belt deflection. Good news is that it is even with the outside edge of the clutch. Tomorrow at lunch or after work I'll give it a test run. I did run the machine in the shop and the shifting is silky smooth. We'll see.
cwh
cwh
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