i realize i have a duplicate of this but its in the wrong spot so here it is in the proper(i think) forum

alright i know im new here, but id definetly appreciate your guys help with this.......

heres the deal its a 2003 1500 5.7L Quad Cab 4x4.......anyway it has that *** that selects either 2wd. 4wd hi, 4 wd low....anyway this recently happened the trunk makes a absoultely horrible noise in 2wd and it jolts and jumps about, but as soon as i put it in 4wdhi it runs fine..now obviously its a pain running in 4wd cause it make tight manuevering alot harder...but here the kicker in 4wd only the rear wheels will spin...as i checked in the rain and it is definetly sending the power to th rear wheels......so it makes horrible noise and jolts about in 2wd but when u stick it in 4wd it stops but only the rear wheels are being driven....at first we though maybe a halfshaft or something but i dont think thats it..so i figured id ask the experts on a dodge forum.....can u guys help me...i plan on diy for this unless its gonna involve a press to push out bearings or something.....and ideas

thankyou guys, this is a real problem with alot of snow expected tomorrow....

 

what does the indicatorbelow the odomiter say ? does it say it is in 4wd high and low when it is in the positions? The truck, when in 4wd high or low will make jults in slow tight manuvers cause it has alot of torque on the front wheels . Check that your linkage isn't off and that you are not in 2wd when it indicates 4wd or vice-versa. The jults at law speed are normal so just make sure you are in 2wd when making slow tight manuvers.

 

Try putting it into 2wd and backing up around 20 yards. I may break it free.

 

Put it upon a lift, or jackstands, and try to figure it out.