Jump to content

Recommended Posts

Posted

You’ll be fine, I ran 33/12.5 on a 20x10 -24 offset with no rub, I’m running a nitto ridge grapplers now 305/55 and has to trim just a tad to keep from rubbing 

BCDB0763-938B-48D9-B42B-113D39EF8965.jpeg

  • Thanks 1
Posted
Just wondering if theres much rubbing with 33s that are 11.5 wide.
Snapchat-98874996.thumb.jpg.ecd67d8b5960703668078138a7a6ce2e.jpg

As long as you’re not using stock wheels you’ll be fine. 2018 GMC Z71 4X4, Crew Cab Standard Bed, I put 275/60/20 BFG KO2’s on with a 2 1/4” level up front and added 1” rear then threw the BFG’s on stock wheels only to get both upper left and right UCA’s rubbing. Apparently, the level caused the UCA’s to have different angle causing the rub. I fixed it with new Fuel wheels with plus 18 offset. All good now!


Sent from my iPhone using Tapatalk
Posted

35e28b559dcbc5bf5b4f6e7b690291f3.jpge04b19bc6f051af65c71bd2297d0faa8.png

Before with Stock 20” wheels with KO2’s after new wheels with KO2’s. I’m sooooo glad I put on the new wheels, look so much better color contrast.


Sent from my iPhone using Tapatalk

  • Like 1
  • Thanks 1
Posted

So is it the height or the width causing the problem?

 

 I have a 2” level. Stock tire 275/55r20 (new) is 31.9” tall.   If I go to 275/60 r20, height is 33”.  

 

Ive been assuming as I am considering my next set, that wouldn’t be a problem.  Except to my already-inaccurate speedo.

Posted (edited)
1 hour ago, Boardmember said:

So is it the height or the width causing the problem?

 

 I have a 2” level. Stock tire 275/55r20 (new) is 31.9” tall.   If I go to 275/60 r20, height is 33”.  

 

Ive been assuming as I am considering my next set, that wouldn’t be a problem.  Except to my already-inaccurate speedo.

This is what i did, front level with 275/60/20 cooper AT3 tires. I only rub the inner fender liner little bit when backing up and turning. I t can be fixed by zip tying the liner but i just didnt care to. 

Edited by Ozer
Posted

I have close to a 2" level and I will upgrading to 20" wheels and 275/60R20 tires as soon as I have the extra money.  I have seen several posts of that tire size with no rubbing on the many wheel/tire threads on here.

Posted

I have 35" tires and they don't rub.   285/65r20 BFG ATs.  They measure to be exactly 34.5"x11.5" on stock wheels.

 

All I had to do was pull back the fenders, and they don't rub.   Your desired size of 33x11.5 will fit no problem with stock wheels.

 

 

UvKVJvV.jpg

DaQowNZ.jpg

7pcMxlz.jpg

 

 

 

  • Like 5
Posted (edited)
1 hour ago, Robopie said:

I have 35" tires and they don't rub.   285/65r20 BFG ATs.  They measure to be exactly 34.5"x11.5" on stock wheels.

 

All I had to do was pull back the fenders, and they don't rub.   Your desired size of 33x11.5 will fit no problem with stock wheels.

 

 

UvKVJvV.jpg

DaQowNZ.jpg

7pcMxlz.jpg

 

 

 

That looks really good..is that a 2" level? For stock wheels, I think those look the best too.

Edited by '17 Sierra
  • Like 1
Posted
This is what i did, front level with 275/60/20 cooper AT3 tires. I only rub the inner fender liner little bit when backing up and turning. I t can be fixed by zip tying the liner but i just didnt care to. 

I don’t agree, I put 275/60/20 BFG KO2’s on my stock 20’s and had horrible rub on both left and right UCA’s causing me to buy new wheels with plus 18 offset. Btw, my truck is 2018 which I’ve heard 2017-2018 have new designed stamped versions of upper control Arms (UCA’s). My neighbor has a 14 and put on Cooper AT3’s 285/55/20’s with no rub but remember his is 2014 model with completely different UCA’s. IMO, don’t do it unless you’re ready to invest in new offset wheels. Good luck!


Sent from my iPhone using Tapatalk
Posted
I have 35" tires and they don't rub.   285/65r20 BFG ATs.  They measure to be exactly 34.5"x11.5" on stock wheels.
 
All I had to do was pull back the fenders, and they don't rub.   Your desired size of 33x11.5 will fit no problem with stock wheels.
 
 
UvKVJvV.jpg
DaQowNZ.jpg
7pcMxlz.jpg
 
 
 

What year is your truck?


Sent from my iPhone using Tapatalk
Posted (edited)
19 minutes ago, '17 Sierra said:

That looks really good..is that a 2" level? For stock wheels, I think those look the best too.

 

Yes, 2" level.  Rear had about 2" raised as well from airbags for towing.

 

2 minutes ago, TXGREEK said:


What year is your truck?


Sent from my iPhone using Tapatalk

Twenty Sixteen - see text below my avatar.

Edited by Robopie
Posted
Twenty Sixteen - see text below my avatar.

That’s why they fit, 2017 - 2018 have different UCA’s which create different geometric tolerances when leveled.


Sent from my iPhone using Tapatalk
Posted
24 minutes ago, TXGREEK said:


That’s why they fit, 2017 - 2018 have different UCA’s which create different geometric tolerances when leveled.


Sent from my iPhone using Tapatalk

That's correct. I have a 2" level and my stock wheels and tires sometimes rub the UCA's when backing up full lock. Lifting 2" brings the wheels in closer to the control arms.

  • Like 1
Posted
That's correct. I have a 2" level and my stock wheels and tires sometimes rub the UCA's when backing up full lock. Lifting 2" brings the wheels in closer to the control arms.

And what year is yours?


Sent from my iPhone using Tapatalk

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Latest Articles

  • Posts

    • I only have a few of the ACDelco blue remaining. One or two of the (old, old) ACDelco Professional boxes, and a couple of the newer style GM boxes with the simulcast in Chinese along with English. FWIW they've all been pretty good, regardless of where they are made, and in 20 years I've never had a problem with an e-core filter.   Now I have a couple of the "A" series in my home inventory. They come in a plain white box with the GM hologram sticker and model information. Have not installed one yet, want to use up my oldest inventory first.
    • Compression test? Weird noises? Fuel trims?
    • I suspect at some point in the near future, the hardware will be free and you pay a subscription to access the vehicle - alldata style.
    • I've been eyeing an upgrade to my tonneau cover for a bit now.  Intrigued by the BAK MX4 EZ-Lift with the torsion spring and went for the upgrade.  Thoughts and musings during unpacking, install and a few days of usage.   Once my order went into Realtruck, it took about 4 days to ship.  Unfortunately, FedEx Ground destroyed the box and contents and it was unusable upon receipt.  To Realtruck's credit, one email with pictures and an RMA was sent to me to send the first one back, and another unit was shipped out.  It arrived 3 days later, unscathed.   I opened the box and it looked like every other BAK MX4.   Biggest differences are the rails and retaining clamps, and of course the spring attached to the cover itself.     NOTE - if you are upgrading from a MX4 to the EZ-Lift, you will have to replace the rails.  The EZ-Lift rails have a notch cut in them to allow the new style retaining clamps to fit properly.  The new retaining clamps also have 2 knobs/carriage bolts and there are two tracks underneath the front panel. The strap clips are mildly different (more like the Undercover Flex clamps) in that the screws go in from the underside.  Personally I prefer these over the BAK clamps that use the nutserts that are a nuisance to install.  The remainder of the parts in the box (drain tubes, rail clamps, and bumper pads) are standard issue BAK.     I did not replace my front bed seal at the time because it seemed to be in decent shape.   BAK recommends shims on the GM trucks unless you place the clamps on the flanges about 1/3 of the way in from both the front and rear of the bed.  I shimmed the front and the middle, and initially placed the clamps equidistant.  This also turned out to be a mistake, because when I set the cover in place, the new style retaining clamps wouldn't clear the front clamp.   New style clamp inserted in the track:     And the issue which occurred because the front rail clamp was too far forward:     Once I removed the shim from the front of the bed, and slid the clamp back to the front flange, everything cleared fine.     The cover set on the rails without issue and I installed the strap clamps.  After I completed my adjustments, I pulled the pin to activate the torsion spring.  Mistake #3 on my part.  PULL THE PIN AS THE VERY VERY VERY LAST STEP!  The reason is, once you pull the pin, the torsion spring is activated.  If you have to loosen the front clamps and adjust the cover, the front panel will - by virtue of the spring, refuse to lay down.  The only way to get it to lay down so you can reinstall and tighten the clamps is to fully open the panel against the back of the cab, which will then allow the front panel of the cover to lay down and be tightened.  Not a big deal unless you haven't installed the foam pads yet (typically the last step) because minus the foam pads, you will need to place something between the frame of the cover and the back window so it doesn't get scratched.  The next time I install one I will install the foam pads before I pull the pin and activate the spring.   After using it for a few days:   The spring assist is great.  You literally can open it with one hand.  My shoulders aren't getting any younger and this was part of my motivation to swap out. The second panel latches and unlatches itself as you open and close the cover.  Neat in concept, however it took me a minute to get used to closing the cover and not hearing the "latching" sound that would tell me it was locked in place. The paddle handles are a huge upgrade and I wouldn't be surprised to see them become the standard across the Realtruck line.  They effectively eliminate the concern that a thief could coat hanger the cover open and get to the contents in the bed. I'm not sure why the very front panel on my cover has a different finish from the other 3 panels.  I have a request into Realtruck to find out if mine was not manufactured properly or if it was by design.   All in all I'm pleased.  Same level of protection, looks good, keeps stuff mostly dry (they all leak around the tailgate) and easy to install.
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...