[RugbyRef]

Recently changed out my factory Duratracs (285/65/R18) for a set of Maxxis Razr A/T's (295/70/R18). Went from 32.1" tire height to 34.3" tire height. At 70mph on the speedo, it will clock at 74.8 mph. Searched all over for a speedometer calibrator and there just isn't one made...yet...for a 2022+ Sierra 1500 AT4X. I initially bought the inline calibrator from Hypertech, because the tech/sales person swore up and down it would work (sent me an email stating that as well). I've used Hypertech before and they are always reliable. Not this time. Just so everyone is clear...the 2022 GMC Sierra 1500's that are "refreshed" do not meet compatibility with Hypertechs claim that the speedo calibrator will work with, and I quote, "new style" truck.

Found out the hard way when I went to install the calibrator. The CANBUS is completely different, therefore, all of the plugs are different. Called and spoke to a senior technician (who was very apologetic), he told me that Hypertech is working on a solution for our trucks. No timeline, however.

Stay tuned!

Tim

 

[speetzen6]

Did you install the tires on the stock rims? Any rubbing or issues?

 

[offroader]

Hey @RugbyRef, would love to see pics of your Sierra with those Razrs. How are you liking traction of them versus the factory set? Have you taken it on any trails or anywhere a bit more off-road yet?

 

[offroader]

Did you install the tires on the stock rims? Any rubbing or issues?

Welcome to the forum @speetzen6. When did you take delivery of your AT4X?

 

[speetzen6]

Welcome to the forum @speetzen6. When did you take delivery of your AT4X?

Got it in October. Love it!

 

[Mash-it]

Recently changed out my factory Duratracs (285/65/R18) for a set of Maxxis Razr A/T's (295/70/R18). Went from 32.1" tire height to 34.3" tire height. At 70mph on the speedo, it will clock at 74.8 mph. Searched all over for a speedometer calibrator and there just isn't one made...yet...for a 2022+ Sierra 1500 AT4X. I initially bought the inline calibrator from Hypertech, because the tech/sales person swore up and down it would work (sent me an email stating that as well). I've used Hypertech before and they are always reliable. Not this time. Just so everyone is clear...the 2022 GMC Sierra 1500's that are "refreshed" do not meet compatibility with Hypertechs claim that the speedo calibrator will work with, and I quote, "new style" truck.

Found out the hard way when I went to install the calibrator. The CANBUS is completely different, therefore, all of the plugs are different. Called and spoke to a senior technician (who was very apologetic), he told me that Hypertech is working on a solution for our trucks. No timeline, however.

Stay tuned!

Tim

The factory duratech's I have on my 2022 are LT 275/65/18 and there garbage. You must be rubbing on UCA's and moldings/flaps?

 

[Jimmy4x4]

Got it in October. Love it!

Congrats @speetzen6! Have you made any mods since picking your truck up or are you keeping it stock?

 

[Jimmy4x4]

The factory duratech's I have on my 2022 are LT 275/65/18 and there garbage. You must be rubbing on UCA's and moldings/flaps?

Welcome to the forum @Mash-it! Have you changed your tires from the duratechs?

 

[FirstTimeTruckOwner]

I spoke with Range about their Pulsar LT and they're currently testing it on the 2023 system and should have it released later this year. Once it is, that may be a good option for you since you can recalibrate your speedometer based on wheel/tire size.

 

[Ralph Tony]

So what’s the largest size with out rubbing that will fit on 23 Atx4 ??

 

[offroader]

So what’s the largest size with out rubbing that will fit on 23 Atx4 ??

Welcome to the forum. From what I noticed, around the upper 34 to 35 inch range is where you should start being concerned about rubbing. But there are other sizing specs to consider like offset, wheel size, etc. What specs have you looked into so far?

 

[Ralph Tony]

Welcome to the forum. From what I noticed, around the upper 34 to 35 inch range is where you should start being concerned about rubbing. But there are other sizing specs to consider like offset, wheel size, etc. What specs have you looked into so far?

None yet upgrading from my 2017 GMC Atx.
This is my current new one is in volcanic red.