hi, I have a 1993 wellcraft excel with the volvo penta 430b motor and sp cd drive. I bought the boat with a cracked block so pulled the old motor from the bellhousing, leaving the drive in place and motor mounts on the stringers. When I put the new motor in it went right on the spline and I bolted it back up. From what I understand if the drive is left in place you don't need and aligning tool, however when I run the motor it vibrates the hull at higher rpms when ran on flush muffs I figured if the bellhousing was left in place it should be aligned but have I missed a step. what is the correct engine aligning process with this setup. it doesn't have a gimball bearing from what ive read. I haven't run it yet on the lake so are vibrations normal when ran on muffs or should I recheck alignment?Thanks Leon.