I have what could be said as an odd problem. In my 1996 s10 blazer when I put it in 4x4hi it seems that all of the power is put the the rear and almost none if none at all to the front. Also when I put it in low I can look at the back left spin in the snow when just in drive (not hitting the gas). Yes this could be that I suck at driving (but i doubt it). Also when on just wet pavement if you hit the gas in 4 high you can spin the back left.

 

I was a vac hose line.