- Jun 17, 2020
- Reaction Points
- Current Ride
- 2020 Tremor Lariat
For the few miles I've driven so far? No regrets whatsoever. If anything, I have more grip.
In the old days of the 4 speeds and 6 speeds, you have to modulate your tire size and final drive to make sure the optimal power band is in the transmission gears and speeds you'll be driving. It is especially important with a diesel, since the power band is so narrow. Otherwise, you'll be lugging the vehicle or revving and going nowhere. With the 10 speed, you'll always be in the power band regardless of tire size. No need to change final drive ratios. There are so many gears to choose from that even the computers feel compelled to skip a few.
Also, there's the added weight to consider. The weight difference between the current 285/75s and the 37x12.50s are about 25-30 lbs each (this includes added wheel weight). So in all, it is 100-120 lbs of unsprung weight, which is like adding 1200-1400 lbs of cargo. That's a decent amount for a Jeep or F150. Our trucks will just shrug it off. If you want to compare straight 35x12.50s and 37x12.50s, you're looking at up to a 30 lb difference for all four tires, assuming the wheels stay the same. 350 lbs of cargo equivalent. That's like an extra two average sized men in the vehicle. Not so bad.
I’m not complaining nor do I have regrets, just pointing out my observations I have noticed from the changes.