[ThompsonFarms]

When i put my truck in 4wd it slams in when i put it in drive no matter how long i wait and if i just leave it in drive and stop and put it in 4 then it will slam in about 2 min later what could the problem be

 

[Screamintrashcan]

Perhaps low vacuum to the axle disconnect, or the disconnect assembly needs to be looked at for cleaning, wear, etc??