Your GMC is looking nice man...I actually like the look of the GMC tailgate....even though yours is made of bondo !!
The air-cast is a good thing....
Years ago I built a motorcycle-engine powered go-kart....on on a test ride...haulin a$$ down the city streets, lost major control....and plowed into (under) a parked car !
Broke my right foot, and was laid up for six months. I was on crutches, then an air-cast....it was very helpfull !!
Again, truck is look'n tough man !!