I have the original article if interested. Someone once posted when they went to the track they raced in 1,2,3 and drove home in 4th. I bought mine for $25 and had the input collar cut to 4.81 for $15. If the transmission is good and I like the gear splits I will keep it. If not I still have the 18 spline. Someone told me last summer that Jamie Passon bushes cases.