Flashman wrote:
otrfun wrote:
If you're doing a lot of heavy towing/hauling may want to consider a set of 295/70/18's (vs. 275/70/18). The 295's will net you an extra 800-850 lbs. of tire capacity per axle (vs. the 275's). We installed a set of 295/70/18 Michelin Defender LTX M/S's on our '16 Ram 3500 SRW 4x4. No clearance issues, but our speedo does read about 2 mph slower. Have 15k on them hauling an almost 4k in-bed camper---very pleased with how they ride and wear.
I used to always run larger tires - but I always had manual transmissions and could adjust my driving for the difference in effective gearing. But with an auto tranny (Aisin) I don't want to mess with how the computer controls the shift points.
Speedo is only 2 mph slower with the 295 (vs. 275's). That's only a very minimal change in gearing. Regardless, we always run in 5th when towing/hauling heavy, so we're more than good in terms of overall gearing.
For us, the safety factor we gain by using tires with additional 800-850 lbs. of tire load capacity per axle easily trumps any concerns about a slight change in overall gearing.