Then go to six states and get the 32spline (if yours is a 32) np205 cv flange $65.00
then call Dave and have him machine down the pilot on the flange cus it's to big to fit on the SD cv.
If yours is not a 32 spline "witch could be sense it's a Chevy and there lame", get the guts out of a ford 205 and put it in...I know Dave has one but not sure what he's doing with it.