First, I did a few searches, couldnt find anything related


the truck is a 99 4dr 4wd blazer, about a month ago I put it in 4wd to go down a trail, as soon as it locked in, it pulled HARD left. Now whenver its in 4wd even on flat ground, It pulls left so hard I almost have to turn the wheel right to keep it straight.

I just replaced upper and lower ball joints, as well as CV axles. Im at a loss here, what happened in the past month that could've made this happen?

the truck doesnt leak ANY fluids, oil, diff, trans, ANYTHING

 

Nobody?

 

I would start by checking to see if all four wheels are turning when in 4WD. Maybe something is wrong with how the Axles were put in. Another thing you may want to consider is, does it just pull in 4WD or 2WD also.

 

It only pulls in 4wd, the axles are not installed wrong. Like I said it was happening before the new CV axles went in