mksgreenxj

well here is what is happening

whenever i put the jeep into 4hi and drive in a straight line the front end vibrates and when i stop it clunks

also when the jeep is in 4hi and i turn the whole thing goes crazy

then when i put it back into 2wd it drives and rides fine

i dont know what is wrong with it and i cant figure it out

i have tried manually putting the jeep into 4hi thinking maybe it isnt fully engaging but that didnt help...


any help would be greatly appreciated...

89eliminator

what kind of terrain are you driving on when you do this?

mksgreenxj

concrete in a downpour

xjmuddigger

x2 ^when u r on pavement,it can mess things up

JeepingDan

in a straight line it should not do that.

Have the one of the axles been swapped? if so the gear ratio's could be off.

mksgreenxj

axles are the same as when i bought it a couple months ago and i went and offroaded it with no problems, but it concerns me that in a straight line its doing it my wrangler doesnt do it in a straight line even on concrete,

i just went in some grass with it in 4hi and it drove normal but i also couldnt get any sort of speed so see if it develops..

Turbo X_J

How many miles? Have you done any maintance to the drive line?

JeepingDan

Check the front shaft for play or maybe bent?

xjmuddigger

it might be ur u-joints

mksgreenxj

well i went over to a field at a local school and put it into 4hi and 4lo and drove at a moderate speed 30 in 4hi and 15 in 4lo and it drove fine with no wobble and was perfect maybe it is just the concrete?

i bought the jeep at the end of october and i havent done anything other than change fluids

vashxj

chek the front axle u-joints they always go out

mksgreenxj

if it was the u-joints wouldnt they act up in 2wd also?
and the trans does it in 4hi-4lo when going forward but not in reverse?

vashxj

it could cuz when 4wd is on its actually applying force on them, just crawl underthere and turn the front shaft back and forth, you should be able to see if there is play by the axle joints if they are moving up and down