33x12.5x20

[Houston_t]

What’s the minimum amount of lift needed (if any) to clear 33x12.5x20 ? I want to upsize my wheels and tires this year but do to garage door clearance I’m not sure how much higher I can go. Right now I’m sitting at stock height to my knowledge. Truck is a 87 4x4 Jimmy

Thanks

 

[frankin5]

When I bought my 85, it had 33's on it. They would rub the inner fender panel on hard right hand turns into driveways.

 

[dyeager535]

As long as backspacing is factory, narrower tires (33x10.5) fit ok without rubbing. The issue is that the tire isn't 33" "long" when you turn. A² + B² = C² Or, 35.9". A 10.5" wide tire is 34.6" under the same conditions.

If you weren't stuck on 20's for your wheels, I found these in 17's: https://www.discounttiredirect.com/fitmentresult/tires/size/34-10.5-17

JUST less than a half inch for your turning dimension than 12.5" wide 33's, I *suspect* as people mention wider 33's at 35.9" hitting, these at 35.6" might just clear. As I recall, the 33's that do hit, are just BARELY scrubbing the fender lip.

They are expensive though. But some street tolerant 34's that clear stock suspension would be sweet!