4 wheel drive stuttering

Bought this truck in April with 36,000 miles reading the op manual I see where the 4-wheel drive is supposed to be exercised regularly. So I commence driving some in 4-wheel. All goes well until I slow down to pull in to a parking spot. Where the front wheels start trying to bind up, for lack of a better description.
Is this normal or a sign of pending trouble? TIA

 

Sounds normal assuming you're driving on dry pavement.

EDIT: I should also say if you want to engage and use 4wd t exercise it regularly to make sure you're driving straight and no turns. When turning on dry pavement it'll bind up as you've experienced.

 

If you want to ''exercise'' your 4wd in dry weather, find a straight country road, put it in 4 hi and drive several miles. If you are making turns, you'll do more damage then good as Tacoma's don't have a center differential.

 

So normal it confirms your 4wd is working. Turning in 4wd on high grip surfaces isn't recommended as it creates bind in the drivetrain that isn't relieved easily due to the high traction thwarting the tire's desire to slip a bit. Either keep it straight in 4wd or drive on a surface with lower grip to exercise your system.

 

Thanks guys. Glad to hear.

 

Normal, but you dont want to use 4x4 much on dry pavement especially in turns

 

Ouch. Yeah don't do that, it's not good for your 4WD system. As has been said, if on pavement, straight line only, and only if all 4 tires are the same. If you have say two newer tires and two older tires you shouldn't use 4WD on pavement at all.