Having the correct basket endplay is very important. The nature of a slider ties the pressure plate to the outer basket, which clamps the clutch pack.

If there is too much endplay, as the pressure plate pushes in on the clutch pack, the hat pulls the basket outward to remove all the slop before the clutch fully engages.

Excessive endplay will result in erratic slider operation at the very least.

Incorrect endplay can also result in damage to the clutch and/or engine.

Basket endplay should be between .003" and .006". That figure is the amount which the basket can move straight in and out. If there isn't enough basket endplay, the inner hub will bind up and not rotate freely. 

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