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tra ii is 12 degree primary clutch angle
p-85 secondary is 14 degree angle

you can mix n match clutch sheave angles not a problem.

example., 2004 lynx 440 has tra iii primary variable sheave 12~14 degree angle mixed with formula tra iii style secondary 12 degree angle

I sell a lot of kits to guys who run older tra ii primary with tra iii secondary and usual calibration change is reduce the final force of the primary spring to provide proper kit calibration.

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