If you put jack stands under the axle tubes, the TT will slam down violently from the weight of the truck as the U joint is unbolted. Support the frame on jack stands, and use a small floor jack to lower the torque tube after you unbolt the universal joint.
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!