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Do you tow at all with those tires? I have a 10K Lb GVW RV trailer that's usually loaded to around 8500 pounds I tow about 10% of the time. I'm thinking with the 3.73:1 read end and a RaceMe 80 hp tow tune I should be OK? What do you think?Originally Posted by Power247
I see Cooper also carries an LT 285/75R17E in their new Discoverer A/T3. Anyone have any feedback on that tire?
Sure do. A 32' TT that sits between 9-10k depending on the trip.
Greg
2012 | RAM 2500 | CCSB | Custom tuned by Double R Diesel
2016 | Heartland Pioneer | DS310
Greg
2019 | RAM 2500 | CCSB | 6.4 HEMI
We haven't had too many people purchase the new a/t3 yet, but cooper does a decent job! As for the AT II's, we've sold more and more sets of those that they're pushing for the top 5 slot! Great great tire all around!
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Power247 liked this post
No problem running that size tire and bigger I am running 35/12.50/17 on my 2012 factory rims
2012 Cummins Ram 6.7L MM3 tuner full 5" Flo Pro TBE Exhaust LWBCC 4x4 Mag Hytec Double Deep Transmission Pan , Mag Hytec Rear Diff Cover
Airlift part # 57595 7500lbs airbags ,Nitto Ridge Grapplers 35/12.50/20 on XD 829 Big Hoss ll Satin Black Machined Dark Tint 20 x 9 with + 18 offset rims,MM3 Tuner With full Custom Tunes by Ray at DRD , Autometer A13117 Pillar Pod , Edge 98004 mount adapter , Mag Hytec front diff cover, SuperNova V4 LED Headlight Bulbs
I am running Nitto Terra Trail Grappler M/T Tread 35/12.50/17 on factory rims budNo problem running that size tire and bigger I am running 35/12.50/17 on my 2012 factory rims
Airlift part # 57595 7500lbs airbags ,Nitto Ridge Grapplers 35/12.50/20 on XD 829 Big Hoss ll Satin Black Machined Dark Tint 20 x 9 with + 18 offset rims,MM3 Tuner With full Custom Tunes by Ray at DRD , Autometer A13117 Pillar Pod , Edge 98004 mount adapter , Mag Hytec front diff cover, SuperNova V4 LED Headlight Bulbs
So I purchased the Cooper A/T3's in an LT285/75R17E and they are awesome! They look much better and fill the wheel well nicely and no issues at all with rubbing. The truck rides smoother and still handles well. The engine runs 200 rpm lower at 62 mph (100 kph) and the tires make 44 fewer revolutions per mile than the stock tires.....that has to make a difference in lifespan. Thanks to all for the feedback...it's appreciated!
Looks good!! @ywgbandit. So much better than the stock donuts!
Greg
2012 | RAM 2500 | CCSB | Custom tuned by Double R Diesel
2016 | Heartland Pioneer | DS310
Greg
2019 | RAM 2500 | CCSB | 6.4 HEMI
ywgbandit thanked for this post
Are you running a leveling kit, to fit those tires? Looks great, I'd like to bump up a size or two from stock myself.
2013 Ram 2500 Big Horn 4x4 G56 CCLB 6.7, MM3 Tuned by Double R Diesel, Flo-Pro 4" Exhaust, Deviant Race Parts Goodies, ARP Head Studs, South Bend Clutch, 3" Thuren Front Springs w/Fox Shocks All-Around, Hell-Bent Steel Steering Box Brace, Thuren Track Bar, Air-Lift 5000, Deviant Race Parts 70" Traction Bars, Falken Wild-Peak AT3W LT285/75R18 (34.8x11.3x18) on Moto Metal MO970 18x9 +18mm
the front end is stock and I have lowered the back end 1-1/2" at the axle by removing the 3 steel 1/2" shim plates between the leaf springs and the axle saddle. The truck now sits perfectly level. I also have the AirLift 5000 series air springs so it rides level with the trailer hooked up too. The truck rides smoother with these tires but I can feel more flex in the sidewall than with the 70 series tires, but it's worth the trade off. It also dropped my 60 mph rpm by 200 revs.
Power247 liked this post
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