Was that one post even in English?? I don't know what people are complaining about... the BFG M/T's do well in the rain as is. Maybe I've self-adjusted for them or just don't drive like I stole it, but I certainly hit 4k on a regular basis so I have a heavy foot. Maybe it's the 3.0/auto combination, but i also have a locker and RWD. BFG M/T's will do you fine in the rain on a DD. If you can't drive with them on your truck as a DD, go get a Miata.

 

Thanks Travis and Jeff, forgot about checking RPS.

 

Oh and look into some James Duff traction bars... they'll help with the wheel hop on take offs.

 

I was thinking the deaver springs that I can get from Dixon Bro Racing. The JD Traction bars are still a thought though. If I don't grab the leaf packs then 2 paychecks from now it'll be the traction bars.

 

I've never even broken my 33x10.5 BFG M/Ts loose in the rain, so I cann't say they're all that much different than the BFG A/Ts that my truck came with. It's all about the driving habits I think.

As for the speedo calibration, from my gps, the speedo is actually closer to correct (almost exactly on) until you get to about 50mph. From there to 75mph I usually just add 2-4 mph to the speedo to get the actual speed. Our trucks have a conservative speedo from the factory that will read 2-5mph faster than your actually going. The odometer on the other hand was spot on, and now is reading a little slow. To fix it, all you have to do is multiply your milage by (33"/31")=1.065. You can't change your programming very easily because the factory computer doesn't have an option to go above 31" tires. I thought about playing with gear ratios and tire sizes to get an effective ratio that matches, but the axle ratios they have available are limited too. The only way you could do it is to get a chip from someonen like Bama. I just do the math when I need to, and have everything written down so I don't forget when I put the tires on (milage).

Don

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Thats assuming your factory speedo was calibrated close

Mine was 2.5-3mph off at 70mph with the stock 245/75r16
now with 265/75r16 Its within .5mph at 70mph

 

I myself contemplated the 33x10.50x15 BFG M/Ts but since I do 98% on road driving and I didn't want to go quite that tall, I opted for a new set of 32x11.50x15 BFG A/Ts. How many miles did you get out of your A/Ts before you swapped them? I had fair tread on mine when I removed them at 32,000 miles.


According to my GPS, my speedo was about 3 1/2 to 4 mph fast with the factory 31x10.50x15s and is now within 1/2 mph of correct with the GPS on the 32s. I have a Bama X2 on the way now so I can change it if I need to.