The D rated BFG 315/70/17 were discontinued a while back.
The 35x12.50x17 are E rated, and 66.34 lbs
The 315/70/17 are C rated and 64.4 lbs BFG originally made the C rated at the request of Ford specifically for the Raptor according to the BFG
They have a 34x10.50x17 D rated but 2" narrower
The only tall D rated tire is the 37x12.50x17
I ran the 35x12.50x17 E rated KO2 on my 18 JL Rubicon and I ran them at a lower psi and they rode fine. The stock tires were BFG 285x70x17 C rated
The benefit of the E rated tires was when you aired them down to 8 psi you have a sidewall that is less prone to rock damage and its demonstrated by BFG, and there is a TON of Jeeps that run the 35x12.50x17 E because there is no other choice with the KO2 or KM3 in that size. The side wall on the KM3 is reinforced even more to resist damage
The 35x12.50x17 KM3 comes in at 74.2 lbs and I have also ran these on my Rubicon with no issues other then the louder tire noise, but a Jeep has zero sound deadening to it
https://www.bfgoodrichtires.com/tires/all-terrain/all-terrain-t-a-ko2.html
TireRack shows that they have them in stock and there is a $120 rebate on 4 KO2`s
AS Long they are purchased through an authorized BFG dealer. I bought a set from COSTCO and they denied the rebate 2 years ago. Now according to their site you can get the rebate
https://tires.costco.com/SearchResu...8&Make=Ford&Model=F-150&Option=Raptor&size=17
https://www.tirerack.com/tires/tires.jsp?tireMake=BFGoodrich&tireModel=All-Terrain+T/A+KO2&sidewall=Blackwall&partnum=17SR7KO2V2&tab=Sizes