Greetings,
I recently purchased new tires for my 2004 Chevy 2500HD 2wd and got a slightly larger size - specifically LT265/75 R16 versus the old tires at LT245/75 R16.
By using my GPS as a control, with my old tires the speedometer would indicate 70 mph and the GPS would indicate 68.5 mph. With the new tires when the speedometer indicates 70 mph the GPS indicates 71.5 mph, so there is approximately a 3mph difference at 70 mph indicated from my old tires to my new ones.
My question is, will this difference cause any major issues with the ABS and/or the engine management systems. Will the ABS be more or less prone to activate under the same conditions as before, and will it noticeably effect my mileage or cause any problems with the engine and transmission (Duramax diesel and Allison 5-speed auto)?
Thanks for any insight.
Cheers - Jonathan