would i need to tub the firewall

if i bag and bodydrop an 80s suburban on 22s with a small tire?

cory yeager (yota4life), How's it going? hey, get your truck up on jack stands and use a jack to compress the front suspension. Make sure you check both sides. Find out what the radius of the tire you want to use is. The radius is the tire size from center of the tire to the outside, half of the overall diameter. Measure that amount from the center of your spindle back to the cab swinging the complete arc from the top center of the spindle (top of wheel well) to the bottom center of the spindle at the floor. Anything that is inside of your radius measurment must be removed. Give yourself atleast 1/2" from cab to tire when it's layed out. Use a square for measuring off the face of your rotor and use the offset and wheel width dimensions too to find out how wide the tubs need to be. Use the edge of the square that is resting on your rotor face where the flange of your wheel will mount for measuring. Hope this helps!

yes you do need to tub your firewall if you want the truck to lay hard