904 question

i took a 1970 904 apart tonight to rebulild for my car and was checking the first set of clutches and it has a .250 gap between the snap ring and the clutch plate, the clutches all look really good shape, plates looked to be in good shape, in my transmission book it says it should be between .056 and .104 there are 4 clutches and the 2 nd set it is .038 in the book it says .032 and .058 so i should be good there. anybody know why this would be so wide. thanks for the help