2 topics big problem?

I'm getting a 6" lift installed w/ 33's everything on my truck is stock am i gonna need lower gears? Are the stock axles enough to handle getting air on the dunes?
Also, this seems to be quite a problem. For the last month or so if my truck sits for more than an hour, when I start it up and accelerate like normal the rpms wont go past 2500 all of a sudden theyll shoot up to what they sould be then immediatly go back down, up and down for the first couple mins i drive it. Putting it to the floor seems to make it go away faster but it doesnt sound very good when i do it. does any one know what the hell is wrong w/ my truck?


98 xj
in a week ill have
6" RR 33"MT/R's ARB snorkel
Bushwacker cut out flares

by the way i have an auto tranny if that matters

Yes, probably 4.56 or lower to get any decent acceleration.

No, jumping is VERY hard on solid axles in general... the lightweight hardware under XJ's isn't built for that kind of abuse.

Dunno. Ask on OEM-Tech forum.

i've seen many people w/33x12.5 on 15x8 wheels are they better to run then 15x10?

Depends on the application... an 8" wide rim will hold a bead better at low air pressures for rock and trail crawling, but a 10" rim will give a wider footprint for sand and mud. As in anything Jeep related, there is no one correct way to set it up... there are tradeoffs involved.