I put one into a 2004R that I built for my brother in law way back about 11 years ago. Freshened it up last year and the splines are not twisting at all. Was in a 454 Vette for a few years, then a big block S-10 for a while, then his 82 Vette, now a 460hp 74 Vega wagon for the last 3 years. Doing Chris' 3rd gear fix to it now. So far so good. :smile: