Jump to content

Recommended Posts

Posted
Just installed a Kryptonite Stage 3 Levelling kit on my '21 AT4 HD and I am debating between tire sizes to run on the stock wheels.  
 
Main considerations for me are;
- no rubbing on frame or control arm at full lock or during suspension articulation while driving off road.
- ideally no wheel spacers to make it work
-  trimming or tying back liners is no issue but id rather not start hacking things up beyond that.
 
Tire sizes I'm looking at
35x12.5R20 - which clearly fit no problem as per the above post.  Very similar to stock size (except wider) which looks a bit on the small side with the levelling kit (IMO).
325/60R20 - has anyone that's run this size on stock wheels that can comment on fitment?  This seems like the best size IMO, also comes in factory load & speed rating which is nice.
37x12.5x20 - Sounds like these work with no cutting just wheel spacer and some trimming?  
 
Any & All comments are welcomed.  Looking at the Toyo AT3 as my favourite.  Unfortunately they're hard to find in Canada right now, especially in the 325/60R20 size.


With the 35x12.5 you won’t have any issues other than the kryptonite control arm. The wider tires will rub on them with your stock rim offset. 11.5 wide tires will work. If you want to keep the rims, you will need spacers with 12.5 wide.


Sent from my iPhone using Tapatalk Pro
Posted
On 2/4/2021 at 10:11 PM, Londart2020 said:

Not the best pic, but this was right after she was done, and I was dropping the old tires off at the old mans for him to give to a friend..NO rubbing, NO cutting/bending anything..

leveled.jpg

Now I’m confused!  One says zero rubbing with 35x12.5 on stock wheels with the kryptonite stage 3 and the other saying it will rub for sure.  ??‍♂️

Posted
25 minutes ago, cortez24 said:

Now I’m confused!  One says zero rubbing with 35x12.5 on stock wheels with the kryptonite stage 3 and the other saying it will rub for sure.  ??‍♂️

I believe the other guy has after market wheels with high offset. This truck, the white one in the pic has the Kryptonite stage 3 with Fox 2.0 and stock Denali wheels. I have 0 rub..

  • Like 1
Posted
I believe the other guy has after market wheels with high offset. This truck, the white one in the pic has the Kryptonite stage 3 with Fox 2.0 and stock Denali wheels. I have 0 rub..

This was rubbing with stock rims. Maybe it’s the tire selection because they rubbed with Maxis MT 35x12.5. Had to get new rims.


Sent from my iPhone using Tapatalk Pro
  • Like 1
Posted
3 hours ago, cpap said:


This was rubbing with stock rims. Maybe it’s the tire selection because they rubbed with Maxis MT 35x12.5. Had to get new rims.


Sent from my iPhone using Tapatalk Pro

Huh, yeah weird Toyo AT3 and no rub at all lock to lock...

  • Like 1
  • 1 month later...
Posted
On 2/16/2021 at 7:34 AM, Londart2020 said:

Huh, yeah weird Toyo AT3 and no rub at all lock to lock...

If it's not too much hassle, I'd be curious to see your clearance with that setup - this is what my truck currently looks like with factory wheels and stock 275/65R20 tires.. I'd say max 3/4" clearance before UCA is rubbing on the tire with the wheels pointed straight ahead.

 

IMG_9757.thumb.jpg.465c0261ebab5eb9d8cdce88117f8831.jpg

 

 

Posted
On 10/25/2020 at 2:59 AM, gSwift said:

I went 37's on stock wheels. Got the Cognito Premier leveling kit being installed as we speak.

IMG_8981.JPG

 

Nice rims, by the way.

Posted
2 hours ago, cortez24 said:

If it's not too much hassle, I'd be curious to see your clearance with that setup - this is what my truck currently looks like with factory wheels and stock 275/65R20 tires.. I'd say max 3/4" clearance before UCA is rubbing on the tire with the wheels pointed straight ahead.

 

IMG_9757.thumb.jpg.465c0261ebab5eb9d8cdce88117f8831.jpg

 

 

I took a pic to show you the clearance, I didn't measure but it's not allowing me to upload it for some reason. But from my pic its really not all that much closer.

Posted
If it's not too much hassle, I'd be curious to see your clearance with that setup - this is what my truck currently looks like with factory wheels and stock 275/65R20 tires.. I'd say max 3/4" clearance before UCA is rubbing on the tire with the wheels pointed straight ahead.
 
IMG_9757.thumb.jpg.465c0261ebab5eb9d8cdce88117f8831.jpg
 
 

I’m sorry but I think you will rub if you bump up to 12.5 width. You have 3/4” clearance now. Stock tires are 10.5” wide if I remember correctly? So adding 1” to each side will certainly make them rub.


Sent from my iPhone using Tapatalk Pro
Posted

I’ve been running the Kryptonite Stage 3 kit for a while now with 35x12.5x20 on 20x9 with a +10 offset with no rubbing issues at all, just enough tire poke to give it a more aggressive look that it needed! 3a7d03ac2becffde0d41333748b0d142.jpg280ef74c8335a15a9348dc9a51350cc9.jpg

b8242ee70f7f6ad00f13d4394f76e9a5.jpg


Sent from my iPhone using Tapatalk

  • Like 1

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
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    342,978
    Total Members
    8,960
    Most Online
    rayredbone
    Newest Member
    rayredbone
    Joined
  • Who's Online   1 Member, 0 Anonymous, 475 Guests (See full list)

  • Latest Articles

  • Posts

    • Question @diyer2 on this line if you please. Are you saying the shudder is the system turning on and off at the frequency of the shudder? Guess I'm asking if you are saying you have seen it do this with the bi-direction scan tool in graph mode? If so have you been able to discern the 'trigger'. Something is telling to cycle rapidly.    My truck just started doing this recently. 197K on the clock. My response has been M5 anything under 55 mph. I treat it like a lugging stick shift. Gear down and let it spin a bit. Engauge M5, then tow mode and then M6 lets the trans stay in 5th but the AFM is active. Smooth like Skippy.    My thought was that as a machine ages the friction gets lower and as the system is load based, the lower friction would allow it to turn on at ever lower rpm until it reaches the lugging point. And yes I am ignorant of any minimum rpm requirement for the system. If you know that would be useful information.    As you know I run a Scan-Gauge II which allows me to watch the On/Off of the signal to the VLOM. While in the shudder mode I'm not seeing is cycle at that frequency or at all for that matter outside the triggers @newdude posted a few years back. Now is it possible that the refresh rate isn't fast enough to catch it? Maybe. It is why I asked my first question about graphing and trigging parameter.     As we have observed from members here the failure point is all over the map miles wise as you note yourself in your opening post. That by itself begs a few questions like fellows that comment on these lifters failing even after the system has been disabled. Long after. 😬   https://www.enginelabs.com/news/tech-tips-replacing-ls-active-fuel-management-lifters-with-melling/   The Gen5 lifters operate the same as the LS versions. In fact they are the same lifter.    https://www.enginelabs.com/tech-stories/sorting-out-gen-v-lt-lifter-failure-with-a-simple-valvetrain-fix/        
    • UPDATE 2: Steering wheel control backlights and control of the cluster can supposedly be achieved by adding a wire to pin 20 of the cluster and tapping it to pin 2 of the main clock spring harness. I'm going to give it a shot - will update  
    • GM Global A pickups 2019-2022 can do OTA programming for the radio.  GM VIP (GM Global B) can do OTAs for almost every module on board.  So a 2022.5 and newer pickup can do OTAs for recalls like the 2.7 fuel flow recall.  EVs get OTAs that improve one pedal driving, radio issues, HVAC issues, updated battery management software, etc.     So age of the vehicle/what GM electrical platform its on will alter what amount of updates can be pushed on OTAs.  
    • Thank You.   So far my new ride is making me look like a genius for going with the 3.0L, as my first fuel refill occurred over three weeks from when I took delivery.  This engine combination is very amazing.  So far no issues and had not done a regen yet.
    • I am curious as to how much fluid you put back in the transmission ( assuming you had replaced the filter to compare to my findings ) and then went through the process of warming up the trans before pulling the check plug to drain out the excess and if you measured how much came back out.    I just found it surprising that some claimed a certain amount less fluid being put in and then draining some back out. The attitude of the truck as per if the surface is level and how the trucks stance is would make quite a difference since the check plug is right at the front of the transmission. 
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...