E-rated 33" or 35" tires?
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Senior User
Joined: Apr 2004
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From: South TX
E-rated 33" or 35" tires?
OK- Guys, I've Searched the sites here and several tire sites, and have not come up with the tires I'm looking for. Surely someone must make an LT tire (E-rated, AT, in aprox. 33"x10.5"/12.5" or 35" for my van. (E-350 Quigley 4x4)
Have found several D-rated tires in that size, that are rated for even more weight than my stock E-rated tires. What's that all about?
Just looking for some good all terrain tires to help fill my wheel wells, give me a little more ground clearance.
I've read alot of good things here about BFG AT T/A, Goodyears, and Michilens, but can't find them in E-rated in these larger sizes.
Do I have to stay with the recomended "E-rated" tires? Or is load all I have to worry about? I see some BFG AT LT37x12.5R17 D-rated tires, good for 3525 lbs ea @ 50 psi. My stock E-rated tires are only rated at 3050 lbs @ 80 psi.
Thanks forn any input, or leads to other threads on this subject.
Have found several D-rated tires in that size, that are rated for even more weight than my stock E-rated tires. What's that all about?
Just looking for some good all terrain tires to help fill my wheel wells, give me a little more ground clearance.
I've read alot of good things here about BFG AT T/A, Goodyears, and Michilens, but can't find them in E-rated in these larger sizes.
Do I have to stay with the recomended "E-rated" tires? Or is load all I have to worry about? I see some BFG AT LT37x12.5R17 D-rated tires, good for 3525 lbs ea @ 50 psi. My stock E-rated tires are only rated at 3050 lbs @ 80 psi.
Thanks forn any input, or leads to other threads on this subject.
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Joined: Dec 2002
Posts: 3,959
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From: USA
The letter designation of the load rating isn't as important as the tire's actual load rating in pounds. Yeah like you said, you can get a 33x12.50 in 3000 lbs rating and a 35 in 3400 lbs rating. Go with the actual weight.
On the tires, I run BFG All Terrain TA KO's in 33x12.50-16.5 size on my F350 and they are a great tire. They are great both on and off-road, on wet pavement and dry, in every type of terrain except mud. They pack up easily in mud and dont clean out well. The work good on sand too when aired down. They haul my slide-in camper well too and don't make alot of noise on the highway either.
Most E-rated highway tires have a very stiff sidewall, that is the main difference between those tires and the wide 'floatation' type tires that I have and that you have been checking out. The stiff sidewall is a good thing to have when towing or hauling heavy on the highway. It is a bad thing to have when driving on soft slippery terrain. You can adjust the air pressure for the load on the highway and for the terrain off the highway and that will allow the tires to perform satisfactory for most purposes.
On the tires, I run BFG All Terrain TA KO's in 33x12.50-16.5 size on my F350 and they are a great tire. They are great both on and off-road, on wet pavement and dry, in every type of terrain except mud. They pack up easily in mud and dont clean out well. The work good on sand too when aired down. They haul my slide-in camper well too and don't make alot of noise on the highway either.
Most E-rated highway tires have a very stiff sidewall, that is the main difference between those tires and the wide 'floatation' type tires that I have and that you have been checking out. The stiff sidewall is a good thing to have when towing or hauling heavy on the highway. It is a bad thing to have when driving on soft slippery terrain. You can adjust the air pressure for the load on the highway and for the terrain off the highway and that will allow the tires to perform satisfactory for most purposes.
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Senior User
Joined: Apr 2004
Posts: 290
Likes: 1
From: South TX
Thanks guys- So the E rated tires specified by Ford are probably safty related as to handeling only (not load)? These E-series vans can be a little squirly.
Will the side wall flex of a larger tire in D rated (instead of E) make a big difference in control? If so, would going to a larger diameter wheel help?
I want to buy new tires and wheels, and believe I can fit 35"/36" tires without any mods or rubbing. Just kind of makes me nervous going from an E to a D rated tire.
Thank again -Rob-
Will the side wall flex of a larger tire in D rated (instead of E) make a big difference in control? If so, would going to a larger diameter wheel help?
I want to buy new tires and wheels, and believe I can fit 35"/36" tires without any mods or rubbing. Just kind of makes me nervous going from an E to a D rated tire.
Thank again -Rob-
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