i just did a 2 inch suspension lift to my truck with torsion keys blocks and 4wheel shocks. i have fx4 rims and was wondering how big of a tire i can run... i know someone with the same lift running 285 70 r 17s...(33s) but not 33x12.5... in order for me to have 33s like that it would b 315 70 17.. im just not sure if im gonna have a rubbing issue or not...the kit said i can run 33s.... just never said how wide

 

here is 33 12.50 17 mudd grapplers


Here is 35 12.50 on 20x10s with just my factory keys turnt up no bigger block in the back

 

Just remember if ya go that big, you will have significant drops in RPM's with that big of tire. I just got 285/70/R17's on my truck. Cruising at 60, it runs about 13-1400 RPM, at 70, it's like 1600, and take about 85 MPH to run 2000 rpm. Therefore it will be kicking down a lot with stock gears....just something to think about...

 

Here's the MTX Wild Country's on my 03 F-150

 

im just worried about rubbing with the 315 70 17s...(which are 33x 12.5 17)

 

they aint no rubbing on mine with my tires

 

hmmm the kid i bought these rims off of said his 285s rubbed with the fx4 rims... thats why ive been trying to figure this out... but then again i think he had his front end cranked tooo much with the nesw keys

 

wait i think i got that mixed up i believe the 315s are 34 inch tires...