Loud poping noise on 06 4x4

[kowboy63]

I was driving my 06 4x4 today and when starting off at a stop light I noticed a popping noise that sounded like was coming from the right front. Went a few miles and didn't hear it again, went in Bass Pro and when leaving heard it again and then several times again before leaving the parking lot, looked underneath and couldn't see anything out of the ordinary. I was about 100 miles from home so I eased on down the road and everything seemed fine, made it home without any problem & haven't heard the noise again. any suggestions?