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Fast forward to today...I need to buy new tires and am finding out I do have the heavy duty payload package (not available now since they didn't find it was in demand) and a tire size that is fairly limiting. I want all-terrain and am limited to the 10-ply E load range heavy tires OR General Grabber C1 tires that are similar to the ones that came on it. My GVWR is 7,050 lbs. and payload is 1,752.
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Still on the fence on what to buy!
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Nindy - 2021 was probably the year with the most available options of all the Generation 14 F150s. From your description, you have a particularly interesting combination of options.
It sounds like your XLT has LT245/70R
17E tires, is that correct? If yes, I suspect your truck also has the "FX4 Off-Road Package" (that actually being the package that allowed the optional
17E tires as OE)?
Your 17" Load Range "E" tires were an option separate from and unrelated to the HDPP and its 1752# payload / 7050# GVWR ratings (the tires included with the HDPP were LT275/65R
18C; that is, an 18" tire with Load Range "C").
FYI
- "Load Range" (SL, XL, C, D, E, etc) is an expression of the 'ply-rating' of a tire, not its load capacity in pounds.
- "Load Index" (a 3-digit numeral in this case) is an expression of a tire's maximum load-capacity in pounds.
For example, the OE tires on my F150 with 1848# payload / 7050# GVWR ratings are Load
Range "SL" and Load
Index "116" (Load Index "116" tires have a maximum weight capacity of 2756#
per tire, well-over what's required to carry 7050# GVWR). My Load
Range "SL" tires have a lower 'ply-rating' than your Load
Range "E" tires, but again, that does not bear on their load capacity in pounds.
IF you want, you can look for other than Load
Range "E" tires in the 275/65R17 size, and as long as those have a Load
Index of 116 or higher, you will not compromise your truck's payload or GVWR capacity ratings.
Yes, of course, there are other implication which may or may not be significant for you. For example
- A lower Load Range tire (one with a lower 'ply-rating') may be less-resistant to damage from sharp rocks and similar of the sort potentially encountered in off-road driving.
- A lower Load Range tire may have a less-stiff sidewall, resulting in a slightly different 'road-feel' in certain conditions.
All of this long exposition just to say that you don't "need" Load Range E tires to preserve your F150's rated payload and GVWR capacities. But you do need to take care about the Load Index and be aware of other implications of a change.
A competent tire specialist can guide you through the process of evaluating all of the options to best suit your particular use-habits and needs. Those Load Range C Genral Grabbers may well be a more attractive tire for your application; BF Goodrich, Yokahama, Hankook, and others all offer lower than Load Range E tires of the size and capacity you can safely use.
Just for your consideration, Good Luck!