Hello just joined the club recently and just picked up my first ranger. 91 4cyl. 2wd xlt with the 8ft bed 102k mi for just $1400. Truck is in really decent shape. No major leaks runs smooth and quiet and overall is very solid. My question is....Im having problems with my parking brake sticking so when I parked the ranger today it was on a hill so I put the manual transmission in 1st to keep it from rolling and i noticed while sitting in there that every couple of minutes the truck would roll forward a slight bit than stop. Now if the engine is off and the transmission in 1st gear what would allow it to that. It would lurch forward maybe a couple of inches or so than stop. It did that a few times every couple of minutes. Anybody have an idea of what that could be? Is it a problem to worry about? Any help would be appreciated.