Thanks
www.fordtremor.com
www.fordtremor.com
I think that it is considered a +40mm offset, not -40. It is 40mm toward the inside. Over the years I have seen it defined both ways, but + toward the inside seems common now. And BTW, all 18" Super Duty wheels are dimensionally the same from 2005 when they were first introduced to the present. Doesn't matter if it is a Tremor or what trim level. If they are 18", they are 18x8 with a 40mm offset toward the inside.
You’re right. Edited my post.
Can confirm, via Toyo themselves, 35x12.50R20 (F) w/ Load Index of 125Q is not rated for the truck. The following Toyo MT is the closest they have (LT295/65R20 and it's taller at 35.4 and narrower at 11.8). As they stated payload is more than the F rating for load and every bit more important for the load index to be matched or exceeded. The OEM spec is E 129Q. Told me legally I have to recommend you exchange your tires and hopefully, you got them from a shop and not an online retailer. He stated tires are forgiving and being you are not using your truck to payload capacity in theory you are fine but we cannot claim that. It all comes down to payload and capacity (am I worried, not really bc I use my truck as a car 99% of the time and if I tow it's 10k or less, got an F250 bc I wanted a traditional long bed (easier to source) and column shifter/center console, plus 6.7L). For comparison of a like-sized and weighted vehicle, the excursion is rated at E 123/120S in an 18" configuration but obviously has a lower towing & payload capacity though.
Backspacing is a different measurement. It is half the rim width plus the offset. So the backspacing of a stock 18" Super Duty wheel (Tremor or otherwise) is 4+40/25.4 = 5.57".
Yeah, I’m aware it’s a different measurement. I simply meant it was a similar means to an end for comparing and spec-ing wheels.
