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5000 miles before changing tire size

HHalleck

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New TrailBoss owner and new to the forum. Hoping someone can help me understand why it's recommended to wait to put 5000 miles on the truck before making any major changes such as tire size or a tuning chip. I understand the many computers need to sync and capture drive data but it seems backwards to me that the data should be captured before I make a major change such as increasing tire size. Any insight here would be greatly appreciated.
 
I’ve never heard of that. I changed to larger tires at 600 miles with no problems I’m aware of.
 
I’ve never heard of that. I changed to larger tires at 600 miles with no problems I’m aware of.
Thanks for the reply. Chevy told me that specifically when I bought it, surprised no one else has heard of that.
 
Is it in the manual? I’ve never actually opened it😎
 
Sure you didn't hear them wrong? The manual recommends a 500 mile break in period for the engine. It says nothing about changing tire size in the manual and nothing at all about anything at 5000 miles other than some service checks.
 
Sure you didn't hear them wrong? The manual recommends a 500 mile break in period for the engine. It says nothing about changing tire size in the manual and nothing at all about anything at 5000 miles other than some service checks.
Yea sales guy and the tech both mentioned 5000 miles before doing anything, said they had people come in that made changes prior and had issues with transmission and other stuff so I’ve been skeptical about doing anything
 
I changed my tire size before I ever picked it up from the dealer. Brand new 2022. The dealer helped me work out the deal and they never mentioned any concerns. If it's a transmission issue I am not sure what waiting 5000 miles will do?
 
I can see the thought process of waiting awhile just to make sure it’s not a total lemon. If you were to buy tires, wheels, and other parts then realize something is wrong with the truck, that would be a gut punch.

The lifter issue is a whole can of worms to open, but it seems to generally happen pretty early with most trucks
 
Yea sales guy and the tech both mentioned 5000 miles before doing anything, said they had people come in that made changes prior and had issues with transmission and other stuff so I’ve been skeptical about doing anything
They both sound like idiots to me…
 
Yea sales guy and the tech both mentioned 5000 miles before doing anything, said they had people come in that made changes prior and had issues with transmission and other stuff so I’ve been skeptical about doing anything
Incompetent people make incompetent choices, and those two individuals are the epitome of that. There are no issues with changing wheels and tires, most dealerships will be happy to do it for you for a nominal fee before you even take delivery of your truck.

The only reason I could see a dealership not wanting you to change anything on the truck for the first 5,000 miles, is if they thought there was a chance that they might be retaking possession of it and didn't want the hassle associated with getting your wheels and tires back to you.
 
The only reason I could see a dealership not wanting you to change anything on the truck for the first 5,000 miles, is if they thought there was a chance that they might be retaking possession of it and didn't want the hassle associated with getting your wheels and tires back to you.

That was the point of my post. I can see wisdom in at least making sure the truck is somewhat roadworthy before installing a ton of stuff, but it’s not like that is specific to these trucks. That is just a smart move for any vehicle.
 

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