If you're engaging in some type of stupidity like having a radically raised or lowered ride height, you might need more slip yoke travel than 1 inch. Unless the driveshaft angle is pretty radical, that should be enough.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!