My buddy's got a 97 F150, and wants to put some big azz tires on it.

Right now he's stock, but i cranked up the torsion bars on the truck tonight and lifted it 1.5" up front, and he's doing 2" rear blocks this weekend he said.

anyway, whats the biggest tire he can fit with just the torsion bars craked up and trimming the valance some? 33's?

Please post tire size (as in P275/45/R20's) and the dimensions (as in 33x12). Thanks for any help!

o yeah, i think he's got 17's stock, not sure, but i think he's getting new rims anyway when he gets tires, not sure.

pics help too!

his truck

 

LT285/75/16 maybe even a 305 and those equal a 33x11.00 roughly Pro Comp make as true 33x12.50 not sure what the metric siz on those is though might be the 305's

Richard D.

 

You can fit up to a 305/75/16 stock (33/12.5). Its actually a shade over 33". A 285/75/16 (33/11.5) but is actually a shade under 33". 315/75/16 (35/12.5) will fit with a 3" body lift.

 

i fit 33x12.50's sittin on top of 16x10's maxxis mudders on my ride, minimal rubbin with the bars cranked, and no blocks in the rear check out my gallery to take a see what it looks like.

 

whoops maxxis mudders are the tire, not the rim. , sorry

 

Hello Harley#356,

285/70-17 (33/11.5-17) for sure, no rubbing.

305/70-17 (33/12.5-17) maybe, might rubb a little.

I have the same 17" stock rims and when I need new tires I will get the 285/70-17 Goodyear MTR's, good luck.

 

Well I had my bars cranked almost all the way and let me tell you DO NOT do it I discovered a problem last night while under the truck to check something else out. What I discovered is that with the bars cranked up that much 1. the CV angles are to severe 2. My tire was rubbing the sidewall on a part of the lower control arm that sticks out when turning to full lock right or left. I discovered this becuase I had this big black line on the sidewall of the tire. Now I am only running LT285/75/16's so for someone running an even larger tire I will almost guarntee this is going to be a problem and not one that you will feel or hear when driving I didn't. It will eventually wear away enough sidewall material that you could get a blowout. I am going to take a frw pituires of what it was rubbing on and post them in my gallery someitme next week probably. The little area it was rubbing on I honestly thought about grinding off I am not sure it really serves a purpose. It is just a **** that sticks off of the front of the lower control arm. You can check my galery for pictures of what happen.

Richard D.

WHILE YOUR HERE CHECK OUT MY GALLERY:
https://www.f150online.com/galleries....cfm?gnum=2479

 

Richard D.........

You have aftermarket wheels. Could it be that the offset on your wheels is causing the rubbing?
I have 285/70 17 on my stock wheels. The bars are cranked, but only enough to level the truck. I have no rubbing at all anywhere under any conditions.

 

Yes I am sure the offset on the wheels does in fact have a little to do with the tire rubbing however I recently installed Heavy Duty torsion bars and decided to crank the adj. bolts in which raised the truck about 3 inches. I had absolutely NO rubbing prior to cranking the new torsion bars I did have the original bars cranked as well and had no rubbing then either.so it did have something to do with the cranking of the torsion bars and possibly the fact that maybe the Heavy Duty bars may in fact lift the truck much more than the stock bars and the offset on the wheels also contributed to it. It was not just becasue of the wheels though. I POSTED A PIC IN MY GALLERY OF THE RUBBING

Richard D.

WHILE YOUR HERE CHECK OUT MY GALLERY:
https://www.f150online.com/galleries....cfm?gnum=2479

 

That tab it is rubbing is there to place the factory jack under to jack that tire up off the ground. If you can determine that not much material would have to be removed from that tab to eliminate the rubbing, you could grind some off with a sidegrinder. I'm sure that enough could be removed from the tab and still be used for a jack point.
If you decide you don't need the tab, cut it off alltogether.

 

I have never used the factory jack so that explains why I did not know that is what it is for.

Richard D.