Heavy duty wheel option

[dieselscout80]

Are we sure we didn't get the leading trailer axle too far forward and include it into the RAW? 9k RAW for that setup does not compute.

I hadn’t thought about the possibility of the front trailer axle being included with the truck’s rear axle number.

It tows great loaded either way.

All I was trying to say was he could have more weight on his rear axle than he thinks if it hasn’t been scaled to know for sure.

I guess I need to re-weight it.

 

[AH64ID]

I see your point i only tow 5K and probably never over 10K i like more tire for my needs

For sure. That’s the same reason with only 1 tire/wheel combo that I have 18’s over 20’s when 20’s are noticeably better 90% of the time… but that other 10% of the time I need more sidewall.

 

[johanh13]

Hard to imagine spending any money on 17’s for a HD pickup when many 17’s only have a load index of 121 thanks to the TRA (though there are more options today than 5-10 years ago). For example the new Kenda 35’s you have have a LI of 121, but the metric equivalent tire in 16 has a LI of 127 and the same size in 18 has a LI of 123 (low for its size, other brands are 128).

So the 4100# rating of the wheel is kinda pointless when you can’t get tires for that, especially in sizes that are good for towing.

The OP doesn’t have enough load rating with a LI of 121 based on repeated issues. He needs weight his truck loaded, find some 18’s, then pick a size that will tow nicely and support the weight.

@IRONPIG I was thinking about your comment on the equalizer being balanced. That really just tells you the trailer is level, not how it’s loaded front to rear weight wise. Trailer springs are so stiff that you won’t get much compression so it would be pretty easy to have too much pin weight and still be level/balanced.

I did not look far and wide, but found two decent tires with 128 load index in popular 17" sizes...

 

[AH64ID]

I did not look far and wide, but found two decent tires with 128 load index in popular 17" sizes... View attachment 90505View attachment 90506

There definitely are some, and more than there were 5-10 years ago, but not as many as 20 years ago. New or updated tires seem to have more load rating than older designs.

Only 15 of 55 285/70R17’s LRE tires on tirerack have a LI greater than 121.

I remember when 17” options got neutered, it seemed like one week to the next a tire that had a 126 dropped to 121. My brother had a road hazard replacement Hankook 285/70R17 on one corner with 121 LI, while the 3 originals had a 126 LI.

The restriction is why that tire was, and still is on load/inflation tables, listed as carrying the same weight at 65 psi and 80 psi.

 

[Ritchie_Rich]

Yeah, can’t imagine damaging wheels with that weight. I towed a 14k fifth wheel with ~3k pin weight for 7 years without damaging my wheels. Something else must be going on.

 

[MegaRed]

Apples to oranges but while traveling with my 1500, I went through a stretch of road maintenance that had a ****-ton of breaks in the pavement with sharp 1-3” rises/drops that hammered my rear end while pulling the RV. I’m guessing I was over payload because I usually was with the 1/2 ton, but after a couple miles of going through that, both my rear aluminum wheels were cracked and losing air. I’m just glad the rear end didn’t leave the chat too.

 

[azrwilkinson]

Does a load Range E even have enough weight carrying capacity compared to a load range F? Or even an G rated tire?

 

[johnmyster]

Does a load Range E even have enough weight carrying capacity compared to a load range F? Or even an G rated tire?

Where are we finding F and G rated tires in LT sizes?

 

[Ritchie_Rich]

Does a load Range E even have enough weight carrying capacity compared to a load range F? Or even an G rated tire?

My E (125 load index) tires are rated at 3,640lbs. That’s 780lbs over the rawr of 6,500lbs and 1,780lbs over the fawr of 6,000lbs. Plenty hefty enough.
I also drive very slowly on crappy roads. Not worth beating my truck or TT to go faster.

 

[AH64ID]

Where are we finding F and G rated tires in LT sizes?

LRF is becoming more popular in larger sizes, but it’s a little misleading since they are mostly 80 psi tires (there are a few sizes in the Toyo load/inflation tables that goes to 95 psi, but it’s not the norm). It’s common in the sizes that E range drops to 65 psi.

I can’t recall seeing a LT LRG though.

Does a load Range E even have enough weight carrying capacity compared to a load range F? Or even an G rated tire?

Not enough information in your question to answer it. Enough load rating for what weight carrying capacity?