6&3/8-2&3/16 (2) groove. 6&7/16-1&7/8 (1) groove. 5&7/8-2&3/16 (1) groove. 6&15/16-3 (1) groove. 6&3/8-2&5/8 (2) groove. 6&1/2-2&11/16 (2) groove. 5&1/2 and 6&3/16, this is a (2) groove (2) different diameters with 2&5/8 total height. 6&1/2-2&11/16 (1) groove. WP pulleys

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