I stripped the splines out on the drive shaft that goes into the bottom of the motor. I thought I ruined the lower gearcase but it happened to be the splines on the upper drive shaft. Did I ruin the crankshaft or just the drive shaft? I can send pics if needed. I cant setup in the motor to see those splines are shot as well. Hoping the shaft is softer and the crank splines are ok. How expensive could this get ??