The Stovebolt Site Forums The Shop Area The HiPo Shop 1 piece or 2 piece driveshaft?

The other question I have providing I continue down the road of 2 piece driveshaft. The SM420 has a flanged yoke at the end, whereas the TH400 uses a slip yoke housing at the end. This configuration would modify to use a slip yoke at the front of the forward driveshaft and a slip yoke at the front of the back driveshaft. Will the 2 slip yokes work like this? With the 2 piece setup, I intend to shorten the front driveshaft and the rear driveshaft will probably maintain the original length (with the exception fitting a chevy to ford 9" u-joint for the 9" yoke).
Again, what have others done with the 350(in my case,383)/TH400 combo?
Even at around 62" for a one piece driveshaft, critical speed is near 7200RPM. Not any RPM range that engine is going to be remotely close to.