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Towing with a 2009 F150 FX4

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Old 04-18-2014, 09:15 AM
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Originally Posted by uzikaduzi
with going from P to LT you're increasing weight (like you mentioned) the additional weight of the tires would effect braking... it takes more power to spin or stop something that is spinning the heavier it gets
OK, good point.
Old 04-18-2014, 09:50 AM
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Originally Posted by Gigantapithicus
Thanks for the banter - can't really affoard the Trailer Toad, but interesting suggestion, no used ones in Calgary that I found and new is $3,500 USD, increasing the trailer purchase by about 50% lol, can't really justify that.


The convo kind of went off topic on the tire discussion, just wondered if those 18' Wrangler SR-A tires were better for what I wanted to do than the 20" Pirellis? Also seeing some newish wrangler AT/R's out there, just a bit more than my buddy is asking.

going from a P rated tire to an E would was quite an increase in towing comfort... I air up to 50psi in the rear when towing and down to 40 when unloaded and have almost no difference in unloaded ride quality (besides the feel of the lugs on the M/T's i got at <5 mph)
Old 04-18-2014, 11:45 AM
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Originally Posted by brulaz

The Goodyear Wrangler's do better in the On/Off-Road section, but it depends which one you are looking at. Lots of people like the Silent Armor. The "All-Terrain Adventure with Kevlar" is the top-ranking, but only has a few people using it; so that ranking may change with time. The AT/S is pretty much down at the bottom. I don't see an AT/R.

EDIT: And for heavy towing you will probably want the LT version of these, not the P, to reduce side wall squirm under load.
Whoops - I meant AT/S
Old 04-18-2014, 12:08 PM
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Interesting, going to tirerack, looking at the specs of the tires


Goodyear wrangler SR/A P275/65R18 114T, 2,601 lbs max load, tire weight 39 lbs
Goodyear wrangler AT/S P275/65R18 113/110SC 2,535 lbs max load, tire weight 50 lbs

Pirellis Socrpion AT/R P275/55R20 2,403 lbs max load, tire weight 48 or 41 lbs (there's two options that look the same).


I've got someone buying my tires (just the rubber) this weekend for $800, so I need something else prior. Looking at tires for the 20" wheel I'm not going to find something that's an LT tire unless I special order and it's not going to be cheap. Buying the 18" rims and rubber off my buddy is pretty good deal for getting new rims and wheels and the 18" rim gives me cheaper/better options down the line.


That said, I don't know if his Wrangler SR/A is any better than my Pirreli 20's, they hold more weight, and are either 2lbs or 9lbs lighter per tire.



Happy Easter everyone

Last edited by Gigantapithicus; 04-18-2014 at 12:44 PM.
Old 04-18-2014, 02:54 PM
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Originally Posted by Gigantapithicus
Interesting, going to tirerack, looking at the specs of the tires


Goodyear wrangler SR/A P275/65R18 114T, 2,601 lbs max load, tire weight 39 lbs
Goodyear wrangler AT/S P275/65R18 113/110SC 2,535 lbs max load, tire weight 50 lbs

Pirellis Socrpion AT/R P275/55R20 2,403 lbs max load, tire weight 48 or 41 lbs (there's two options that look the same).


I've got someone buying my tires (just the rubber) this weekend for $800, so I need something else prior. Looking at tires for the 20" wheel I'm not going to find something that's an LT tire unless I special order and it's not going to be cheap. Buying the 18" rims and rubber off my buddy is pretty good deal for getting new rims and wheels and the 18" rim gives me cheaper/better options down the line.


That said, I don't know if his Wrangler SR/A is any better than my Pirreli 20's, they hold more weight, and are either 2lbs or 9lbs lighter per tire.


Happy Easter everyone
what's the letter load rating on those tires? it's not all about the weight rating, a stiffer side wall will improve towing and hauling
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Old 04-18-2014, 04:55 PM
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Originally Posted by uzikaduzi
what's the letter load rating on those tires? it's not all about the weight rating, a stiffer side wall will improve towing and hauling
Where's the letter load rating? I've got a few pictures, but don't know what I'm looking for. Upon closer inspection there's no additional information on the pictures to determine ply/load rating other than the tire size and model which is 114T, exactly what I posted above. I'm guessing that means it's standard load rating?

Last edited by Gigantapithicus; 04-18-2014 at 05:04 PM.
Old 04-19-2014, 01:02 AM
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Originally Posted by Gigantapithicus
Where's the letter load rating? I've got a few pictures, but don't know what I'm looking for. Upon closer inspection there's no additional information on the pictures to determine ply/load rating other than the tire size and model which is 114T, exactly what I posted above. I'm guessing that means it's standard load rating?


The wrangler AT/S is a C rated tire.
The wrangler SR/A don't say, but there's an SL on the tirerack website (which I think means standard load)


The Pirelli's don't say anything, which apparently for a P rated tire means standard load.

Last edited by Gigantapithicus; 04-19-2014 at 01:25 AM.
Old 04-20-2014, 12:06 AM
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Ok, tire issue solved.


Got some Nitto Terra Grappler 285/55/20's, not brand new, about 70% tread left for $500. I know the Pirrelli's were rated for enough weight, I just wasn't fond of them, being a P rated tire and the first time it snowed they felt like absolute crap. Will likely get some dedicated winter tires in the fall/winter and just keep these for summer and towing.


Now back to tongue/dry/gross trailer weights

Last edited by Gigantapithicus; 04-20-2014 at 12:11 AM.
Old 04-20-2014, 12:10 AM
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I've towed with LT 265 70 17 E Scorpions on my Silverado and the P 275 65 18 SRA's and the SRA's feel a bit squirrelly.
Old 04-20-2014, 01:36 PM
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Originally Posted by Wannafbody
I've towed with LT 265 70 17 E Scorpions on my Silverado and the P 275 65 18 SRA's and the SRA's feel a bit squirrelly.
Cool, although I think the experience you had with your scorpions would be a poor comparison to my scorpions given mine are P rated. SRA's aren't all that great either I don't think - the SRA's you had might have even had a lesser load rating than the scorpions.

Thanks

Last edited by Gigantapithicus; 04-20-2014 at 04:08 PM.


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