Heavy Rigs Tire Load Rating E

[4wheelgreg]

Just wondering what load rating most of you guys are running , I’m getting close to ordering my tires for my build .
Front & Rear Bumpers
Winch
Budbuilt full skids
Budbuilt Sliders
Full roof rack
and all the little beefy stuff adds weight .
Planing on reserve full tank .
I’m planing on a set of Grappler in E with all that weight .
Just wondering what most of you guys run ?

 

[Climbingnut]

285/70R17 KO2’s w/ E rating. Also have front/rear bumpers, 12,000 winch, carry 6+ passengers most times and tow a caravan.

 

[stonepa]

Stock size Michelin Defenders w/E Rating in summer, Bridgestone DMV-2 Blizzaks w/E rating winter. A tow an off-road tear drop trailer as well as a 7500lb Hewescraft boat with it. I go with Load Range E due to the trailer / tongue weight as well as wanting some additional durability on long stretches of washboard, nasty gravel roads. I rarely drive in bad mud.

 

[linuxgod]

285/75R17 Nitto Ridge Grappler load E.

There's really no need for E-load in the above size I used. Correct PSI at GWVR for the above tire is 37 psi. Even 1000# over GWVR it's something like 43psi. The slightly stiffer sideway is helpful for towing (I get a bit more lateral control) and they are a bit less prone to sidewall tears offroad, though I'm giving up some on-road comfort for those benefits. But in terms of the PSI difference achieved between C and E load you need to be *significantly* over rear GAWR rating before you'd need to be at >50psi.

 

[TeCKis300]

What @linuxgod said.

It may be worth getting on the scales after being fully built. A number of us are beyond stock GVWR, which would call for higher pressures than RCTIP. Conversely, when unladen, it's also okay to run lighter pressures for ride quality.

I'm probably only +300 lbs when unladen and run 37PSI. When towing, I'll go up to 43 PSI rear. Last time when changed some things in my setup and didn't have my WD bars correct to transfer weight to the front axle, the scales told me my rear axle was almost at 5,000 lbs, so that even 43PSI wasn't enough for the rear. Needed 46 PSI, or until I got my WD re-dialed in.

Basically saying scales could help to dial in pressures once you're built.

 

[Fisher23]

Nitto Ridge Grappler LT285/70R18 E 127/124Q

You may want to also replace the rear springs with ones rated for more weight.

Prior I ran Factory size in Toyo R/T's and they were great, however going to 34's Toyo did not make them in 285/70/R18 so Grapplers is was.

 

[grinchy]

With the larger sizes you may run into load rating issues and psi. On 129 load you’re going to be around 35 to 37 psi or so, with the safety psi at 35 (do not go below). I’ve seen a big difference in ride quality from just a two psi difference.

 

[Fisher23]

They normally run 46 psi cold.

I've run them a 20 psi offroad and they work fine.