i want to put 33's on my s-10 blazer. but the local off-road shops are telling i need a suspenion and body lift and i'd have to cut my fenders to make then fit. input anyone. im think of a 4-6 in suspenion lift will be enough

 

My gf just put 33's on her Jeep YJ and she needed a 4" lift to do it...I'd imagine you'd need the same for the Blazer

 

Your shop is correct.
Jeep and Blazers are made differently.

 

yep your gonna need atleast a 5" trailmaster lift and stock offset rims to clear 33's you also may need a 2"bl too if i remember correctly . The s series wheel wells are so small compared to most trucks . oh , and you will most likely need a new front drive shaft if you have Autotrac 4wd .