i plan on lowering my 94 s10 extended cab, I’m doing 4 in the front 4.5 in the rear. I need help on tire size. My wheels are 15”.. I don’t want to buy some then have rubbing issues. Thanks in advance..

 

Put your truck up on jack stands. Then using a floor jack under the front and rear tires, raise the tire/hub/wheel as far as it will go, this will let you see how much travel the stock suspension has. With the wheel/tire/hub lifted, measure the clearance between the tire and fender. This should give you an idea of how much room you have to play with using the stock geometry.