[KTL]

It should have smoothed out after 4000-5000 miles by now, if it's internal. The three 915s that i've helped people rebuild got better within 1000 miles.

Regarding the Kendall special limited slip oil, i've used it this year in my racecar's trans and it works nicely. Definitely better than the Redline pink goop that was in there before! I've got a Robotek shift kit on top of the factory short shift. Shift effort is firm side-side, due to the Robotek's spring action, but fore-aft action is not too bad. Gear engagement is fine. No forcing it into gear whether cold or hot. I'm happy with the stuff thus far and will continue using it.