"Downgrading" from 37's to 35's

[Antho]

The regular 37x12.50s on the BFG website are different than the load C ones built specifically for the Raptor.

What exactly do you mean regular?
@BoostCreep

 

[Nex]

What exactly do you mean regular?
@BoostCreep

There is more air in the 37s...

 

[Antho]

Guess we are going by what we read somewhere on the internet vs what BFG specs are. I posted the specs but apparently there is a top secret raptor 37X12.50R17/C 116S that weighs lighter than whats listed on their site.

 

[Ox3721]

Guess we are going by what we read somewhere on the internet vs what BFG specs are. I posted the specs but apparently there is a top secret raptor 37X12.50R17/C 116S that weighs lighter than whats listed on their site.

Don’t know about the secret part, but basically, yes.

 

[Idaho Savage]

FWIW, the 35" trucks have more travel than their counterparts. When the Gen 3 was announced, Ford basically said the 35s excel in high speed mobbing but the 37's win for low speed crawling, etc.

Personally I think it's a moot point as most owners won't need the incremental difference in either case, so buy what makes you happy.

To the OP, I'm taking my 35" oem BFGs off this week. Don't know if you're anywhere near Idaho but I'll be selling them on the stock rims if you're interested.

 

[BoostCreep]

What exactly do you mean regular?
@BoostCreep

I just meant the normal load D 37s they’ve made for years. I didn’t say they were lighter than the 35s.

From BFG’s website:

37’s are 69.6lbs
Raptor 37’s are 64.8lbs
Raptor 35’s are 63.6lbs

Nobody’s gonna notice 1.2lbs per tire. What you’re gonna notice is increased moment of inertia and taller gearing on the 37pp from the tires. But it’s still gonna be significantly more responsive than most 37’s people typically throw on a Raptor.

Also lighter wheels don’t equate 1:1 with lighter tires since the tire weight is distributed so much further out.

 

[MrTorque]

I just meant the normal load D 37s they’ve made for years. I didn’t say they were lighter than the 35s.

From BFG’s website:

37’s are 69.6lbs
Raptor 37’s are 64.8lbs
Raptor 35’s are 63.6lbs

Nobody’s gonna notice 1.2lbs per tire. What you’re gonna notice is increased moment of inertia and taller gearing on the 37pp from the tires. But it’s still gonna be significantly more responsive than most 37’s people typically throw on a Raptor.

Also lighter wheels don’t equate 1:1 with lighter tires since the tire weight is distributed so much further out.

Good facts and points! I agree wheels wont effect as much as tires, but im super curious to see what 10 plus lbs of wheel weight lost on each corner results in 0-60/feel/mpg. Kind of want to buy a Draggy to do 0-60 test and see if it effects it.

 

[BoostCreep]

Good facts and points! I agree wheels wont effect as much as tires, but im super curious to see what 10 plus lbs of wheel weight lost on each corner results in 0-60/feel/mpg. Kind of want to buy a Draggy to do 0-60 test and see if it effects it.

I would guess losing 10lbs on the wheel would more than make up for 1-2lbs extra on the tire.

 

[MrTorque]

I would guess losing 10lbs on the wheel would more than make up for 1-2lbs extra on the tire.

Exactly, my thought behind it is to lose that little bit of sluggishness some people complain about compared to a 35”.

 

[Old-Raptor-guy]

I have said it before and I will say it again. IT ISN'T THE WEIGHT!!!

The 37s change the over all gear ratio of the truck compared to the 35s.

The 37s should have come with 4:30 gears. With all the "engineering " put into the package you would think Ford would have done that. All the engineering went to suspension and packaging (fitting spare tire) and not into powertrain.

Oh I don't blame Ford, having 4:30 geared axles would have made the 37s even more costly to produce and given current production bottle necks possibly impossible.

The 37s performance is equal to what a 35s would be with 3:73 gears.