300821 - 65% - Firestone - 30.5-32 - Solid, minor cuts. - LT, 8" offset, 16 hole Cat. 300822 - 30% - Primex - 30.5-32 - Solid minor cuts. - LT, 8" offset, 16 hole Cat.300823 - 25% - Primex - 30.5-32 - Has sidewall PC's - RT, 8" offset, 16 hole Cat. 300824 - 75% - Primex - 30.5-32 - Solid, minor cutsw. - RT, 8" offset, 16 hole Cat.