It has been filled with fluid only to mock up and fire my 327 once. Other than that its never been driven on. Switched my setup to LS/4L65E. I got it with my tranny from Mad Dog Transmissions. Its been sitting in my garage for about 2 years now (covered). 27 spline so I think that it fits the early 80's non-lockup tannnys. The guy who bought my 700 wanted less stall cuz he was going to be towing.. $120 shipped OBO