GEN 1 Tire pressure for 37 KO2

[IamCanadian]

I have just ordered 37" KO2 boots for my truck, I was wondering what tire pressure other people are using on the subj tires?

 

[MTF]

It's the same psi. for the 315/70 17" KO2s only the volume increases.

I run 38 in the fronts and 34 in the rears.

 

[Big Blue]

I've been running 35 psi on the street on my 37 KO2s.

 

[Raptor 2014]

Depends upon the rim width and weight of your truck.

Easy ballpark - Find a spot that is flat and straight for about 75 - 100 yards. Park tuck with wheels pointed straight ahead, mark a perpendicular line about 3" -4" wide of chalk or similar material across the surface of all 4 tires and drive in a straight line (Don't turn the steering wheel) for 75 - 100 yards. Check your tires for what is left of the chalk line. Adjust pressure accordingly to have an even wear surface across the tire face. After the basic tire pressure is determined, adjust the front negative camber to what ever your heart desires.
This is a starting ball park number only for the front and will change dependent upon your driving style and needs. The rear will be good to go for everyday street driving.

 

[IamCanadian]

Thks for the replies. One more day to wait for the 37s.

 

[Vader]

34 front & 32 Rear, Unless I am pulling my boat or RV.
then I Up rear to 36

 

[IamCanadian]

It a funny thing, Ford calls for 44 PSI and I run my present KO2 35" 10 Ply tires at Front 41 and Rears 39 all these years. I am noticing most are running fair amount less PSI.

 

[B E N]

I think Ford suggests that pressure to hit their economy ratings. I run mine around 32.

 

[IamCanadian]

Well the deed is done, 37" KO2 installed. Now I have to play with the air pressure today.

 

[Raptor 2014]

Well the deed is done, 37" KO2 installed. Now I have to play with the air pressure today.

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Good Looking Truck