Hey everyone....I bought some underdrive pullies used and have been having one hell of a time with Steeda's instructions...anyways, do you have to remove the harmonic balancer off the stock pulley?? Also, does the crankshaft seal need to be put back in and if so, does it just rest around the bolt??? And finally, is the new bolt supplied supposed to be so tight to go back on? It's almost like it is too big for the crankshaft hole. I tried tightening it and after ages it still didn't pull the pulley on...so, I'm beginning to think I don't have the correct supplied bolt. Is there any other way to get the crank back on? I have everything done except the crank and putting the alternator pulley back on. I need help ASAP. Thanks.