death wobble is much debated. I personally think with a heavy duty steering link, good shocks, proffesional alignment, and stay away from 12.50 inch or wider tires you wont have a problem. if you want 33's bfg makes an awsome 10.50. as far as the lift goes the higher you go the more angles that are not right. unless you reengineer your entire suspension we are all subject to death wobble.
DW is more pronounced the more worn out your suspension is.
Ball joints, tie rod ends (and drag link ends), trackbar bushings, toe alignment, and wheel balancing all can cause DW. Other small things like worn out control arm bushings can be the straw that breaks the camels back and pushes you over from drivable to DW city.
I too was a little worried about DW before I lifted. I got under my jeep and made sure all the bushings, ball joints and steering components were in "ok" shape. Everything looked good except my steering stabilizer. It was/is shot. I lifted it took it for a drive and had nothing. Drove just as good as before. My jeep has 171k on the odometer and everything but the lift components are original to the jeep. I have noticed a little bumpsteer. Nothing to bad though
I guess it just depends on what day of the week yours was built. I got lucky mine must have been a middle of the week build.
Just start prepping by checking everything before your lift comes in. Might as well do everything possible while your in there.
For example, you can easily check tie rods and ball joints by lifting the WJ off the ground, and trying to shake the tire. If it doesnt move it doesnt mean your in perfect condition, but it means all is well. If it does have play in it, somethings worn.
What the others said. I just installed my lift this past weekend (OME HD springs, Bilsteins, adjustable track bar, etc.). Came out to about 3" of lift. We took our time, made sure everything was properly installed and tightened etc. We were running late into Saturday night so I ran out of time to install the new steering stabilizer. Since then I have not had time to install it or to get an alignment. So far, I have had it on a short, mild trail run and repeatedly have had it up at highway speed, and only have had one very minor instance of steering "chatter." With that said, this weekend I intend to install the new steering stabilizer, get an alignment, and recheck everything. Good luck.