New Aluminum Driveshaft Question?

No problem doing it on ramps...and yes its a complete assembly, take yours out, slap the new one in...
Couple things...
Be prepared when you pull the DS out of the tranny as its gonna leak some fluid....I have a rubber glove handy to slap over the catch the leakage....

The bolts out back can be a mofo to break loose if they never been off...the factory uses Loc-Tite of sorts and it holds like a mother...

Andy, as usual, is spot on. I second his sentiments to have extra trans fluid on hand and threadlock for the DS bolts (they are 12mm, 12 point bolts, if you need to buy a wrench or socket).

Good luck.

use some PB Blaster and let bolts soak for an hour before you take em off

Another thing I do is use a 3/8" dia rod and send it thru the holes in the pinion flange, then rotate the DS so the rod jam's under the dif...It'll will hold the DS while loosening and tightening the bolts....You normally have to reef on those bolts pretty good....An long rachet for leverage will be a plus to..
Anything beefy that'll fit thru that hole and act as a stop will be a big help...If the bolts feel like their not gonna break loose then STOP...get a torch and put some heat to em...you dont even wanna bust a freakin bolt....

Here we go...new I had a pic...
you can see all the holes in the pinion flange....between every DS bolt you'll get an open hole...that's what you wanna send something thru and up against that "ear" (at 3:00 as your looking at the pic) on the dif to hold the mother for wrenching..

Sheesh Andy, you should work for National Geographic with all the pics you have on your computer.

Andy's heat method is a good one- it is how threadlock is supposed to be circumvented.

Good luck.