Rear trailing arms

[1enick72]

Are all trailing arms the same length, short or long bed? Are they also the same up to 72?

It appears I have an issue with the front of my frame. My right front tire is very close to the inside edge of the fender and the left there is about 2" but my bumper is only about 1/2" from the right front fender. If I pushed the cab over to line up the wheels I would have to remove the bumper. The bumper is straight and all brackets look undamaged. Anyway I found a frame/rolling chassis for $250. The frame is all solid but the trailing arms are rusted out. I found it a little strange but oh well. I figured I could do the frame like I really want to and when it's ready I'll swap over the body and drive train.