the problem with that blazer would be its so short and light . it needs more weight to get more traction on the road for heavy hauling .
my last truck was a k30 long bed and it did good . then the frame rusted out at the spring hangers . so i shortened the frame and wheelbase to use it as a beater and plow rig . the few times i towed with it i sure did miss the original length wheelbase as bigger trailers wanted to push me around a bit more than before .
i do agree it looks like it should have been done .