Bigger tires on a 2011 Chevy 3500 srw?
My 2011 3500 SRW comes with 265/70/r18 tires stock. I am looking to possible change to a Terra Grapler 295/70/r18. The diameter change will be from 32.7 to 34.41 inches 1.71 inches larger. The tire...
Forum Discussion
dave17352 wrote:trail-explorer wrote:
Affecting the final drive ratio would be a big negative for me because I am so used to, and LOVE, the power my truck has now.
As mentioned before, that big of a tire may not fit the front.
Aside from that, and making the Speedo inaccurate, everything else should be fine
That is interesting. So you folks think it would be a big noticeable difference in the power. I am a very conservative driver, seldom do I put my foot down hard. Will it really be that bad?
The difference in power noticed will be negligible on a big diesel. You will drop 1-2 mpg for the heavier bigger dia more aggressive tread compared to a stock street tire.
Personally I wouldn't worry about recalibrating the speedo. Ck with a GPS but you'll only be reading maybe 4 mph slow at freeway speeds.
GMs have tight fender wells. Probably need to level the front end and clip some plastic here and there as mentioned to keep from rubbing at full lock.
The only thing that concerns me is that you think you'll have over 8k on the rear axle. Seems like a lot. More than just a big camper is going to add. A lot of tongue weight on the boat trailer?
