19.5 or 20" wheels for 06 4x4

[DennyDay]

General question - -
Has anyone had any experience with either 19.5 or 20 inch wheels, single wheel, with load range G tires on a 2006 4x4 with a 2" lift. Kinda close to max load on drive tire tires with 17 tires in load rang D. Any experienced help would be appreciated.

 

[Ozymandias]

Yes i run the 265/70-19.5 on my Truck, also to heavy weight for the 17".
I is a good tire, but it is a harsh drive on rough road, potholes and especially Offroad.
Slow Offroad goes fine but fast Gravel Roads not.

I for me wouldn't be them again for how I use the Truck.

If you do Onroad Driving then it is a very good tire, close to a lifetime Tire, extreme slowly wearing.

 

[cerberusiam]

The 18 or 20 inch rims will get you a 3900-4000 lb rated tire depending on exact dimensions. You should not be using load range D tires anyway, but, even the E's in 17" are now only rated at 3150 lbs.

 

[seafish]

19.5 commercial tires DO ride rougher then the 17" tires available for stock wheels. NOT sure how the 20" tire/wheel combos run.

 

[Ozymandias]

Yeah fine for Onroad but nothing off the Tarmac - it beats the truck to death, even with very low tire pressure.
It was NO fun to drive, changed my US Tour something because of this, more Interstate, less Backcountry.

 

[seafish]

Yeah fine for Onroad but nothing off the Tarmac - it beats the truck to death, even with very low tire pressure.
It was NO fun to drive, changed my US Tour something because of this, more Interstate, less Backcountry.

Yes…and you have to be VERY careful; how LOW you run them a they do not have a bead to hold the wheel on the rim…ALSO, sidewall is prone to "zipper failure" due to too much flexing if too low a pressure. That begin said, VERY high load capacity and longer life then LT tires.

https://www.google.com/search?q=sid...oTCO7cqKX3_8gCFQqXiAodWsgLdw&biw=1627&bih=991

http://www.tirebusiness.com/article/20031013/NEWS/310139972/zipper-failures-not-only-embarrassing

 

[lpennock]

Look at a 285/75-18 or 295/70-18 in a E129 rating. Unloaded they are fine at 40f/35r and loaded they are rated at 4080@80psi. Gives you the best combination of load capacity and unloaded ride.

 

[BigPapa]

We're talking about apples and oranges here. The 19.5's are medium duty truck tires. The 20's are light truck/car tires.

 

[Ozymandias]

Yes…and you have to be VERY careful; how LOW you run them a they do not have a bead to hold the wheel on the rim…ALSO, sidewall is prone to "zipper failure" due to too much flexing if too low a pressure. That begin said, VERY high load capacity and longer life then LT tires.

Yes I know that, CDL C8.
70-80Psi is lowest that looks good - and that beats me to death.

 

[seafish]

Yes I know that, CDL C8.
70-80Psi is lowest that looks good - and that beats me to death.

Ozy, I was directing that to the OP not at you…just pitting out some info about commercial tires that NON-CDL drivers might not realize.

That being said, I recently ditched my Rickson forged aluminum 19.5 wheels/tires and went back to oem forged aluminum with the Toyo OC AT2 285/75/17E ... my wife and my back definitely thank me…the difference in ride quality is amazing.

I might even put the cherished Ricksons up for sale since I don;t run the camper full time like you do.

 

[AH64ID]

I run 245/70R19.5's in a LRG most of the year. This includes lots of towing, dirt roads, and gravel use. Honestly I don't think that LRG @ 90-100 psi are any worse than LRE @ 80 psi on back roads. The min pressure I run is 70 psi to prevent bead loss or premature tire failure. The 70 psi does make them a little harsh off the pavement but nothing crazy.

Loaded and unloaded they are far more stable than my LRE's (255/80R17) which I run 2-3 months a year. Aside from a pothole here and there the 19.5's are every bit as comfortable and smooth on the pavement. You do "feel" road imperfections a little more but it's just a feeling and not a decrease in ride quality.

If you are looking for tires/wheels that work hard and get loaded heavy then 19.5's are the way to go.

seafish, aren't the AT2's only 3195lbs/ea in 285/75R17? Not hardly enough load for a TC.

 

[SnoKing]

In 17" they come as 285/70r17 rated to 3195. Does not appear that 17" 285's come in 75 series. Ever my old 265/75R16 carried 3415 each. 17" seem to be left at the alter so to speak!!!!

SNOKING

 

[lpennock]

TRA limited all new 17" models to 3195 or less. There are a couple companies that make a 285/75-17.

 

[AH64ID]

In 17" they come as 285/70r17 rated to 3195. Does not appear that 17" 285's come in 75 series. Ever my old 265/75R16 carried 3415 each. 17" seem to be left at the alter so to speak!!!!

SNOKING

While not overly common there are several companies making a 285/75R17. They started out as a 3970 @ 80 psi and are now generally down to 3195 @ 80 psi.

The Nitto Dura Grappler is still listed at 3970 but who knows how long that will last.

http://www.nittotire.com/light-truck-tires/dura-grappler-highway-terrain-light-truck-tire/

 

[DennyDay]

Thanks for all the help ---still; looking I don't want square wheel oxcart - - -getting to old for that, besides would hear about the poor ride from Gale!

 

[inlinesix3million]

If you are looking to change wheel sizes, then, factory take offs in 18" are available and cheap. This size tire will give you many options to fit your weight limits. Ride comfort at this size
wheel could potentially be better than 19.5 0r 20 and fit your weight requirements.

 

[photowrite]

Look at a 285/75-18 or 295/70-18 in a E129 rating. Unloaded they are fine at 40f/35r and loaded they are rated at 4080@80psi. Gives you the best combination of load capacity and unloaded ride.

I agree, these are good sizes, I have a set in both on OE forged wheels purchased off Criagslist.

4K per tire in a srw application is an option guys would have loved several years ago. The commercial 19.5 wheels/tires do interest me, but I know they're not ideal for some of my backcountry travels.

 

[photowrite]

And if a guy does not want that 'big' of a tire, the common new OE light-truck size of 275/70R18 is available in about every tread a guy might ask for, and carry slightly less each, 3,640#.

 

[cerberusiam]

Thanks for all the help ---still; looking I don't want square wheel oxcart - - -getting to old for that, besides would hear about the poor ride from Gale!

A set of 20's with the stock tire size should work fine for you. They are about 33" and will work with the 3.73 gears and auto for towing. With a heavy trailer unless you want to re-gear stay away from the taller tires mentioned, you will not be happy with performance with a heavy load.

A set of 18's will ride a little better at 33' but you will loose some weight rating. It is a trade off on size and rating.

 

[AH64ID]

Has anyone found an 18" wheel that has the same rating as the tire?