Hey just got my 89 blazer back on the road again with the new tranny, tbi 355, and new hedders and duals. Anyways i have no lift and no front swaybar and live in a city with bumpy roads lol. I have 31" BFG Mud terrains on the rear with my posi and 31" bfg all terrains on the front, both sets are 90% tread left. my question is what would a good pressure be front to back? thnks for any help as i want my tires to last as long as possible.