hi there i have an 1988 blazer an i am going to be putting a 3in body lift on it an wanted to know how big of a tire i can put on the truck thanks in advance

 

Umm... Search you must, before asking a common question.

-Yoda

 

31"
if you also trim the front and back of each fender well you can go to 33" tires. No 32" wont fit with the lift alone, they will fit if you trim less fender. I had to trim 2 1/2" off the front and back of each fender opening, up to about 6" in apie shape.