I took my tranny apart this morning to add shim. I did indeed have 1.7mm to begin with, which gave me a 3.04:1 ratio.
I added another .5mm shim, still had splines showing on the cam plate and it gave me my new ratio….3.15:1, or 4 fins beyond 3:1.
I now have a total of 2.2mm shim and a 3.15:1 ratio.
Here are the pictures and I did take a video of the ratio count, I’ll have to upload it to you-tube and I’ll get that posted up.