yA i BUILT ONE DRIVELINE TODAy, after my dual cases my flange to flange changed 6.5 inches shorter. So I wanted a little extra out of the driveline so I removed 7" out of the driveline. And now my compression is even shorter and there is a little over a inch. Aparently seven inches removed doesn't correlate to flange to flange length. I geuss since the angle changes removing 7" doesn't really remove that much.