How to put in 4 wheel drive??

Hi

I have a 99 jeep cherokee sport. How do you put it into four wheel drive? Do you put it in park or neutral or just press the break as you switch it? Thanks.

You can go into 4hi up to 55mph while moving. Check out this thread (http://www.automotiveforums.com/vbulletin/showthread.php?t=980080) for detailed instructions.