Re: driven clutch freeplay?
There is 2 schools of thought on this. One says let it float a bit if perfect alignment cannot be achieved with the available shims, the thought being it pull to the right position. The other is zero to 1/16, get, grind, make, borrow or steal whatever shims you need. Skidoo slowmotion video testing revealed that the "let it float" theory does not hold true and in most cases the secondary stayed right on the shaft when torque was applied even if it was out of alignment. I personally have found that secondaries left loose for many miles tend to get looser on the jackshaft. Best to shim em tight and aligned IMHO