I'm having trouble getting the outdrive spline to set. I feel like I get the splines to match up, but can't get the drive to actually slide on. Anyone have any ways of making this process easier? I've put a ton of marine lube on the both ends and I just cant get the unit to push on? everything looks like it's straight and should slide right on. I'm currently using a motorcycle jack and ratchet strap to hold the unit in place. Any advice would be appreciated! thanks