[mickmate]

I'm a Mech and Prod Engineer but I didn't stay at a Holiday Inn last night. You guys have a good eye for what will and won't work and how to put it together, you're practical engineers. The key to comparing the parts you're looking at is CSA (cross sectional area) of the shaft that is acting in shear. If you have a lot more splines even if they aren't as deep if the CSA is greater on the part that is in shear it will obviously be a lot stronger. The watts is great in this application and I think very necessary. One of the high HP cars a customer of mine has is eating holes right through the rear inner fender with the flex and play of lower control arms allowing tires to touch it.