dude I know your sick of answering all these hub ?'s but here's one more. I installing it tonight, does it matter bout the position its put on or not. I can see where the keyway left a mark on the inside of the hub so I can get it pretty close. Mines a 96 and I've converted to the cloyes double roller, no cps , elec. pump etc. U are the king of LT1's , thanks Chris

 

It does not matter about the position unless there are some weights in the balancing holes that are in the perimeter of the pulley. Most do not have any.

It is nice to have the markers line up right, so you can estimate the position of the crank for valve adjusting and such.