16x8 aftermarket rims and 265/75R16 tires on 2001

[SnowDrift]

At stock height, will this tire size fit on this truck with 16x8 rims that have a 4 1/2" backspace (or offset of 0mm)?

I'm wanting to fit these on my 2001 Sierra 2500HD at stock height.

 

[MrMarty51]

If there is a sticker on the back of the door, or on the left side door frame, it will give the stock tire size.
I think, IIRC, that my K3500 of the 2000 year was stock with the 265 tire size.
About the wheel off set, I could not say anything about that as I do not know anything about that.

 

[SnowDrift]

Stock size was a 245. From what I understand, it was how they achieved some of the advertised sales numbers.

 

[MrMarty51]

If no one knows if the tires/wheels will work on Your truck, might have to get one of them mounted and installed, then turn the steer wheel to its limits and see what it does.
I had to turn up the torsion bars on my truck to get the oversize tires from rubbing the back corner of the wheel wells, it would rub if I went around a corner and hit a bump. With more than Me in the cab, it would rub just going around a corner.

 

[JayTheCPA]

I have OE tires and aftermarket rims which have wider than OE stance (positive offset?) and clearance is not an issue. So it is likely that using a set of neutral offset with slightly wider treads will not have a clearance issue.

Am going to run with the crowd where 245's are OE, especially since Tire Rack lists that as OE Specifically 245/75-16.

In jumping over to GT Spark Plugs, the stats are:
- 245:
++ Diameter: 30.47
++ Revs per mile: 661.93

- 265
++ Diameter: 31.65
++ 637.23

IIRC, with the wider contact patch, expect the fuel economy go down a bit.

 

[RI Chevy Silveradoman]

Stock tires on 2500HD are 245x75x16.
The stock OEM rims are a rim that really doesn't have much offset at all. So chances are, they should fit fine. I upgraded to 265x75x16 tires on my OEM rims at my first change. I made the tire height adjustment with my tuner. Speedometer is right on the money.
If you call any rim manufacturer, they will tell you what OEM offset is.
I was always under the impression that positive offset brought tires under the truck towards the centerline, and negative offset brought tires out or away from the centerline.

 

[SnowDrift]

Stock size is, indeed, 245/75R16. Positive offset is what the OEM wheels have - pushes the wheel under the truck more. Less "dished" look to the rim.

The tire company I'm planning to buy from told me that I can order two different sizes if I want and they can mount two of them, put the truck down to see how they fit and if they don't work, I can change to the other size. This seems reasonable. I just want to be armed with as much good information up front as possible.

If I'm stuck with 245s, then there's a good chance I'll just end up selling the truck - yes, I'm really that vain.

 

[RI Chevy Silveradoman]

You definitely have options out there.
I personally dislike when I see these trucks with large negative offsets. They just look odd being much too wide. I like the stock offset, but a wider than stock rim size.
I think stock OEM PYO rim size was 6.5". A bit too narrow. 8" would look much nicer with the same OEM offset.

 

[JayTheCPA]

My other rig has OE 265's and the Burb has 245's. Until I looked closely one day, I always thought the two had the same size tire as they are not really visually distinctive from each other.

But, if you gotta have 265's, you gotta have 265's

 

[btfarm]

Thousands of us with GMT800 trucks are running 285/75-16 tires on the stock PYO rims with cranked T bars. I don't know about the offset on your 8" rims but 265s aren't likely to be a problem

 

[RI Chevy Silveradoman]

265s do not hit or rub anything with stock PYOs. 285s do, unless you crank the bars like Mike mentioned.