I'm not sure if this would have anything to do with it but I jumped a curb sunday night with the passenger side of my truck and blew out two tires. Well today I was on my lunch break and the truck acted like it went into neutral then back into first as I was leaving a stop sign. Since then it has felt like the truck could be pushed faster than it takes off from a complete stop. To avoid further damage I've been using 2nd gear from a stop and avoid 1st like the plauge. Am I looking at a new tranny or a fairly easy fix? I checked earlier and didn't see any visible damage from the curb incident.