2017 GMC Canyon Collision Rebuild - Page 2 - Chevy Colorado & GMC Canyon
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post #21 of 30 (permalink) Old 04-22-2019, 04:53 PM
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i started a wreck thread a while back if y'all are interested.its called crazy wreck stories.



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post #22 of 30 (permalink) Old 04-22-2019, 06:49 PM
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https://www.coloradofans.com/forums/...k-stories.html

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post #23 of 30 (permalink) Old 04-22-2019, 09:20 PM Thread Starter
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... and the chrome fog light housings! I also added the GM tailgate latch with chrome handle and chrome GM recovery hooks.


Are there any issues moving from the 18" SLT wheels to the larger 20" Denali wheels? I assume the overall height (wheel + tire) is the about same because the Denali tires have a lower profile. I thought I read somewhere that you could change your wheel diameter in the settings, but now I don't see a way to do that.
No issues moving from SLT to Denali wheel. I added splash guards and have a very slight rub on the front left, but that's probably related to my situation. From what I have seen on other threads, GM supposedly uses the same speedometer configuration for all trim levels.
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post #24 of 30 (permalink) Old 04-22-2019, 09:40 PM
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The last picture of the driver side view. The front left wheel looks to be slightly rearward then that of the passenger side view.
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post #25 of 30 (permalink) Old 04-22-2019, 09:49 PM Thread Starter
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The last picture of the driver side view. The front left wheel looks to be slightly rearward then that of the passenger side view.
It is set more rearward in the wheel well than the passenger side. But, it reads as "flawless geometry" on the alignment rack.

It could very well be related to the situation, but if you read enough of the posts on this forum, there are an infinite number of people who have increased tire size and ONLY have rubbing on the rear side of the front left, which is exactly where I have it. And none of them are rebuilt trucks. Which indicates that something GM does is not centering both front wheels equally within the wheel wells.
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post #26 of 30 (permalink) Old 05-07-2019, 03:38 PM
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Originally Posted by KSMOCanyon View Post
No issues moving from SLT to Denali wheel. I added splash guards and have a very slight rub on the front left, but that's probably related to my situation. From what I have seen on other threads, GM supposedly uses the same speedometer configuration for all trim levels.
According to tiresize.com's comparison calculator, there will be a difference in speedometer reading between the 2 tire sizes. The 20" setup will be moving slightly faster than the speed shown on the display. Is that right? It also shows the 18" tire is a little wider.

Comparison between 18" and 20" Canyon Wheel sizes:
slt-vs-denali-wheel-compare.gif


Actual specs for Goodyear vs. Bridgestone tires:
wheel-size-compare-by-brand.gif

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post #27 of 30 (permalink) Old 05-07-2019, 09:44 PM
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Here a website you can buy Salvaged vehicles https://erepairables.com/
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post #28 of 30 (permalink) Old 05-08-2019, 01:46 PM
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No issues moving from SLT to Denali wheel. ... From what I have seen on other threads, GM supposedly uses the same speedometer configuration for all trim levels.
If that is true, how does the computer know if you have the 20" Denali wheels/tires vs. the 18" SLT wheels/tires, which have a slightly smaller profile?

If there is no compensation in the computer, then a truck with the 20" Denali wheels will have traveled a longer distance given the same odometer reading as the truck with 18" SLT wheels, because the smaller tires have to rotate more times per mile than the taller tires. Does that make sense?

Admittedly, the speedometer readings will be very close, but if my daughter (the daily driver of my Canyon) thinks she is driving 60mph, she'll actually be doing 61mph according to the comparison results on tiresize.com.

Does anyone have a link to the other discussion about GM using the same speedometer configuration for all trim levels? I have a hard time believing they don't have some way of making the speedometer readings accurate for each OEM tire setup.

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post #29 of 30 (permalink) Old 05-14-2019, 09:01 PM Thread Starter
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It also shows the 18" tire is a little wider.
The Denali rim is wider than the other OEM rims, but the 255mm tire for the Denali is obviously 10mm less than the 265mm tire you picked for an 18" wheel.
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post #30 of 30 (permalink) Old 05-14-2019, 09:08 PM Thread Starter
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If that is true, how does the computer know if you have the 20" Denali wheels/tires vs. the 18" SLT wheels/tires, which have a slightly smaller profile?

If there is no compensation in the computer, then a truck with the 20" Denali wheels will have traveled a longer distance given the same odometer reading as the truck with 18" SLT wheels, because the smaller tires have to rotate more times per mile than the taller tires. Does that make sense?

Admittedly, the speedometer readings will be very close, but if my daughter (the daily driver of my Canyon) thinks she is driving 60mph, she'll actually be doing 61mph according to the comparison results on tiresize.com.

Does anyone have a link to the other discussion about GM using the same speedometer configuration for all trim levels? I have a hard time believing they don't have some way of making the speedometer readings accurate for each OEM tire setup.
If you do a search on the forums for "speedometer", there are a lot of posts. I've yet to see anyone say GM DOES NOT use the same speedo configuration for normal stock sizes. Maybe @RatRacer has more info, I quickly found one of his comments:
"Given the tire size spread that GM uses on all the twin models, they keep them in a fed acceptable 5% also, so they don't need to touch the calibration."
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