Can I get opinions on tires and wheels?

[CorMun]

Just picked up a '99 Yukon with 245/75/16s. I found some good looking used OEM 17" wheels that I might buy. They have 265/70/17 Coopers on them that I will swap out eventually with some Toyos or Michelins, most likely.

I don't usually mess with wheels on my cars because I'm kinda boring that way, but I think I'll like how 17s will fill out the well a little better.

If I get the 17s and don't lift the Yukon, can I assume that nearly any reasonably width tire will clear the area within the well when I'm turning?

In other words, when I buy new tires, does the shop know exactly which sizes will fit even though the stock wheels are 16"?

I know this is a rookie question, but like I said, I usually don't buy aftermarket wheels. I saw one recommendation to upgrade the brake calipers if I make the switch--any other advice?

Pictures of your setup are welcome!

 

[OBSandaNNBS]

What's wrong with your rims?
I've had the 265/75/16s for as long as I've had the truck, and just got new ones.
My door jamb sticker says 245/75...so they are like 1" taller?
I don't think there are issues with hopping up to 17 as long as your tire height is not too tall. Pay attention to offset too...I almost got new rims and wheels for the 2012 and handed down those 17s to the 97.
I think you can do the GMT800 brakes upgrade with the 17"
I'm hoping other knowledgeable guys will chime in bc I want to know for sure too.

 

[Marky Dissod]

Just picked up a '99 Yukon with 245/75R16. I found some good looking used OEM 17" wheels that I might buy.
They have 265/70R17 Coopers on them that I will swap out eventually with some Toyos or Michelins, most likely.
I don't usually mess with wheels on my cars because I'm kinda boring that way, but I think I'll like how 17s will fill out the well a little better.
If I get the 17s and don't lift the Yukon, can I assume that nearly any reasonably width tire will clear the area within the well when I'm turning?
In other words, when I buy new tires, does the shop know exactly which sizes will fit even though the stock wheels are 16"?
I know this is a rookie question, but like I said, I usually don't buy aftermarket wheels.

If your '99 Yukon is a GMT400, 265/70R17 might be a tight fit because of the taller tire height
(not the taller wheels; if 265/75R16 won't clear, then 265/70R17 won't either).

So far as width is concerned, my '02 Z71 wears 255/70R18 (32.05" tall) instead of 265/65R18 (31.56" tall) which I bought it with
BECAUSE 265/65R18 rubs (previous owner did not care about the rub) but 255/70R18 does not.
In other words 10mm less width bought me 12.7mm more height and enough clearance to not rub.

Why not ask the shop? None of us work there, how would we know what they know?
They SHOULD have plenty of reference info at their disposal, but who knows how intelligently they can finagle that info?
My tire shop was not willing to guess, they looked at the tire size I wanted to try and said, let's try it and see
(I'm assuming they let me try because they were both pretty close ...)

I saw one recommendation to upgrade the brake calipers if I make the switch--any other advice?

Regardless of the tire size you wind up choosing, if you manage to upgrade to 17" wheels,
YES, when the time comes to replace your front pads / rotors / calipers (three possible excuses!),
walk up to the parts counter and ask for - or order from RockAuto - the following from a 2010 Yukon:
Caliper brackets (as well as)
Calipers
Rotors
Pads
Ask for / order new brake lines for a '99 Yukon; yes they fit together.

 

[Joseph Garcia]

Wheels: Determine what your current wheel offset is, as it is marked on the wheel. When looking at alternate wheels, try to keep the offset as close as possible to your current wheels.

Tires: You can look up the tire height of any tire online (such as using the Tire Rack site) by looking at the 'specifications' chart. Keep the tire height the same or less than your current tires to avoid rubbing.