245/75/16 tires to 265/75/16
Anyone change the stock tires on your GMC from 245 to 265s? if so anything negative and did it change up angle of fiver.
Forum Discussion
I put 265 tires on my GMC 2500HD.
The speedo read about 1 mph fast at 60 mph with the 245 and about 1mph slow with the 265. I left it that way. I think the dealer can correct that in about 10 minutes. The 265 is standard on the 3500HD in 2006.
The 2500 wheels are:
PY2 - 16" x 6.5" Chrome Clad Steel Wheels (5 cutout holes), or
PY0 - 16" x 6.5" Polished Forged Aluminum Wheels.
The 3500 wheels are:
NZ7 - 16" x 7" Chrome Clad Steel Wheels (6 cutout holes).
Aluminum wheels were not available on the 3500 in 2006 or 2007.
The tire specs for the 265 say 7" wide wheels minimum. 245 tire specs say 6.5" wide wheels minimum. Some at dieselplace say the 265 on 6.5" wide wheel are OK, others say the steering can be degraded because the bigger tire has the wrong shape on the narrower wheel.
I bought the 3500 wheels (NZ7) that are 7" wide from a auto recycler. I watched ebay for about 6 months to find them.
With the 265 tires the truck looks better, tows good, and the tires have more weight capacity. The RPM difference is about 80 RPM slower, the same as a 3500. The 265 will raise the rear of the truck 0.6", again the same as a 3500.
I am trading my GMC 2500HD soon for a new Ram 3500 dually. Then I will have way more weight capacity.
Good luck in your decision.
The speedo read about 1 mph fast at 60 mph with the 245 and about 1mph slow with the 265. I left it that way. I think the dealer can correct that in about 10 minutes. The 265 is standard on the 3500HD in 2006.
The 2500 wheels are:
PY2 - 16" x 6.5" Chrome Clad Steel Wheels (5 cutout holes), or
PY0 - 16" x 6.5" Polished Forged Aluminum Wheels.
The 3500 wheels are:
NZ7 - 16" x 7" Chrome Clad Steel Wheels (6 cutout holes).
Aluminum wheels were not available on the 3500 in 2006 or 2007.
The tire specs for the 265 say 7" wide wheels minimum. 245 tire specs say 6.5" wide wheels minimum. Some at dieselplace say the 265 on 6.5" wide wheel are OK, others say the steering can be degraded because the bigger tire has the wrong shape on the narrower wheel.
I bought the 3500 wheels (NZ7) that are 7" wide from a auto recycler. I watched ebay for about 6 months to find them.
With the 265 tires the truck looks better, tows good, and the tires have more weight capacity. The RPM difference is about 80 RPM slower, the same as a 3500. The 265 will raise the rear of the truck 0.6", again the same as a 3500.
I am trading my GMC 2500HD soon for a new Ram 3500 dually. Then I will have way more weight capacity.
Good luck in your decision.
