I own a 2003 Dodge Ram 1500 SLT Quad Cab 4x4. Love the truck but want to change wheel size. Currently I have 20x7 aluminum wheels with P275/60R20 tires...I want to put on 17x8 wheels and P265/70R17 tires so I use snow chains in the winter. Can I do it? and will it screw up my computer electronics? Thanks

 

Your answer(s) may lie here:
https://dodgeforum.com/forum/3rd-gen...dodge-ram.html

 

The overall diameter change (if any) will affect your speedometer and odometer. Otherwise, it should be good to go.

 

Good to go , have'em on my 2005 2500

 

Fit just fine, might need an adjustment.

 

Care to explain this one?

Do you mean odometer adjustment?

265/70/17 is a 31.6" tire in theory. Adding tire chains to them will obviously increase the overall diameter. I dont see any need to adjust the odometer.
I know that my odomoter is incorrect at the 275/60/20 setting when I had my LTZ's on there since they were actually 32.5", not 33". I changed the setting to 31.5" and odometer was dead on. Odd, I know.

OP, I wouldnt make any odometer changes. Worse case you'll be slightly faster on the read out.

 

A 285/70r17 tire would be almost the same diameter as the 275/60r20. Don't know if you want to go that wide or not. With the 265 you might end up 4% off on the speedometer assuming yours is correct now.

 

285s would be happier on 9" wheels. 8" is a bit too narrow. I think the proper range would be 8 1/2" - 10"

 

Not odometer adjustment, that is illegal. Speedo adjustment so it reads correctly.