19.5 or 20" wheels for 06 4x4

[lpennock]

Closest I found was gear alloy at 3700. Most I found were 3600 or 3400.

 

[NIsaacs]

Here is a set of 2016 takeoffs.

Nickhttp://showlow.craigslist.org/wto/5315797127.html

 

[photowrite]

Closest I found was gear alloy at 3700. Most I found were 3600 or 3400.

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

Good point guys... This is always a problem, the wheels are rated for the (highest) capacity tire they are optioned with from the OEM (in the case of the OE wheels I prefer). The factory 18" wheels come with 275/70R18 tires good for 3,640# in a SRW application, so of course that's going to be close to what the wheels are rated for. Likely not until higher rated tires become the norm not the exception will we see the tested rating spec higher.

 

[AH64ID]

Good point guys... This is always a problem, the wheels are rated for the (highest) capacity tire they are optioned with from the OEM (in the case of the OE wheels I prefer). The factory 18" wheels come with 275/70R18 tires good for 3,640# in a SRW application, so of course that's going to be close to what the wheels are rated for. Likely not until higher rated tires become the norm not the exception will we see the tested rating spec higher.

IIRC Ram published the capacity of the 18" and 20" SRW wheels at 3500lbs.

 

[SnoKing]

IIRC Ram published the capacity of the 18" and 20" SRW wheels at 3500lbs.

I thought wheels had to meet or exceed the rating of the tires installed? SNOKING

 

[lpennock]

I thought wheels had to meet or exceed the rating of the tires installed? SNOKING

Actually only need to meet the rating of the tire at the specified weight on the door tag. I.E. If truck GAWR is specified at 65psi and the tire size is specified to have a load of 3300 at 65psi then the rim only needs to be rated for 3300.

 

[AH64ID]

I thought wheels had to meet or exceed the rating of the tires installed? SNOKING

I would guess they only have to meet 1/2 of the RAWR? I don't know.

http://www.rambodybuilder.com/2015/docs/intro/twlnwv.pdf

 

[SnoKing]

Giving that all the 18" wheels at rated to only 3500 pounds, we now know why the RGAWR is only 7K when the tires would allow a few hundred more. SNOKING

 

[Ozymandias]

hu interesting, how is the rating for the gen3 chrome wheels on the 2500?

 

[SnoKing]

hu interesting, how is the rating for the gen3 chrome wheels on the 2500?

Little hard to read, however appears to be 3500 also. The 17" aluminum wheel is 3200. Printing it out makes it easy to read. SNOKING

 

[cerberusiam]

Wheels are not rated at tire capacity, they are rated according to GAWR. Basically they should meet or exceed 1/2 the heaviest axle GAWR.

 

[Ozymandias]

Little hard to read, however appears to be 3500 also. The 17" aluminum wheel is 3200. Printing it out makes it easy to read. SNOKING

Thank you! So the Laramie Chrome/Aluminium 17" rims are 3200.

 

[Jim W]

Thank you! So the Laramie Chrome/Aluminium 17" rims are 3200.

If you are looking for a stronger wheel tire combination; I have found one for the 17" wheel and tire.

I am running a set of Mickey Thompson SideBiter II wheels; 17X9, bolt pattern 8X6.5 with back spacing of 5 inches and zero offset rated for 3640 LBS each. I am using a set of Nitto Dura Grappler tires, LT285/70R17 E 126R, with a weight rating of 3750 LBS at 80 PSI. I run the tires at 70 PSI max; which put the tire support load weight under the wheel max weight. The tires at 70 PSI are rated at 3415 each. This is more than adequate for my needs in supporting my trailer when towed.

Jim

 

[AH64ID]

If you are looking for a stronger wheel tire combination; I have found one for the 17" wheel and tire.

I am running a set of Mickey Thompson SideBiter II wheels; 17X9, bolt pattern 8X6.5 with back spacing of 5 inches and zero offset rated for 3640 LBS each. I am using a set of Nitto Dura Grappler tires, LT285/70R17 E 126R, with a weight rating of 3750 LBS at 80 PSI. I run the tires at 70 PSI max; which put the tire support load weight under the wheel max weight. The tires at 70 PSI are rated at 3415 each. This is more than adequate for my needs in supporting my trailer when towed.

Jim

With the way that 17" tires are losing rating you may find that the next set you buy is only rated for 3195lbs. There isn't a lot of incentive to spend money on 17" wheels anymore.

 

[photowrite]

I would guess they only have to meet 1/2 of the RAWR? I don't know.

http://www.rambodybuilder.com/2015/docs/intro/twlnwv.pdf

Sounds right to me.

Ratings are so high these days they likely only need to certify for what the truck is rated to haul, GAWR, plus a little extra for safety?

Though if the OE 18" wheel are rated for only 3,500#, it seems a bit low with tires mounted rated for 3,640 each. Of course the rear GAWR is only 6,000 on my my '14 2500.

 

[Jim W]

With the way that 17" tires are losing rating you may find that the next set you buy is only rated for 3195lbs. There isn't a lot of incentive to spend money on 17" wheels anymore.

This maybe true John, but these tires should last for 4 years or more. I use them only in the summertime to pull the camper with. Putting on between 7,000 and 10,000 miles a year on them. The rest of the time I am running my stock 17" tires and wheels. In four years I will be ready for a new Ram truck if the Cummins engine is still in it, I think.

Jim

 

[Drewhenry]

I had a set of Toyo 285/75 R17 128S with the 3970lb rating. I got 48K miles out of them rotating about every 10K. Toyo doesn't make that specific tire anymore. It is now a 121S with a 3195 rating. I just bought a set of 5(full size spare). They are very quiet until you get to about 80mph. Then the noise is just noticeable. They also changed the tread pattern to be much more aggressive. If it were any more aggressive it would look like a mud tire. New warranty is 65K. Using GPS and construction zone radar to check speed I used Smarty to adjust tire size to 33.8. Just .1 smaller than mathematically running the numbers. Until they do me wrong, I will continue to purchase Toyo tires.

 

[algonaman]

I was at Les Schwab today, they are the dealer around here if you want Toyo or Nitto. I asked about getting M608z 19.5 Toyo and depending on size, are rated G (5k lbs) and H (6k lbs) Since the only wheel they can sell me is the Vision heavy hauler super single whatever Chinese made cast aluminum rated at 4500 lbs, he said they can;t match those tires to that wheel since the load rating of the wheel is not up to the tire specs. I am using the Toyo MT's now in a 35"/18 rated 3650 (IIRC). to haul my camper, and tow a flatbed with my jeep on it. I am pretty close to pushing the limits of these tires before I hook up my trailer, with just the camper, me and my dog and full tank of fuel (56 gallon Transfer flow). I am nervous about this set up when towing. I wonder if the Nitto 4k lb rated in a 18" or 20" would be the way to go, since the 19.5 is really tough to justify without spending huge $$ on custom forged American Force or equivalent wheel. Any advice from you regular hauler types thanks in advance.

 

[AH64ID]

Buy 19.5's... Les Schwab sells a LOT of them and mounts the LRG and LRH tires. They also sell tires all the time that exceed the rating of the wheel. Brand new Ram's come with tires that exceed the rating of the wheel. I am not sure you got an educated tire salesman.

You may have to try a different Les Schwab.

A 245/70R19.5 LRG has a rating of 4540 and Les Schwab mounted it on my Visions. Only a 40lb difference but more is more.

Without a lift and longer control arms a 245 is about as big as you can go with the offset of the Visions.

 

[lpennock]

285/75-18 and 295/70-18 are both E129(4080lb) rated but that will be over the rating of your rim which is probably 3600. If you want over 4k 19.5 is your only option.