Tire Pressure
Postmaster
Joined: Aug 2006
Posts: 2,829
Likes: 3
Originally Posted by blackhat620
Okay look up 275/70R18 E Light truck tires.
Thanks for the help
Thanks for the help
LT275/70R18
35 psi - 2070 lbs.
40 psi - 2270 lbs.
45 psi - 2470 lbs.
50 psi - 2680 lbs.
55 psi - 2840 lbs.
60 psi - 3020 lbs.
65 psi - 3195 lbs.
70 psi - 3360 lbs.
75 psi - 3530 lbs.
80 psi - 3640 lbs.
Postmaster
Joined: Dec 2003
Posts: 4,196
Likes: 10
From: Arizona
Originally Posted by PowerStrokeHD
The numbers are for SRW use. If you happen to need the numbers for DRW use, just let me know.
LT275/70R18
35 psi - 2070 lbs.
40 psi - 2270 lbs.
45 psi - 2470 lbs.
50 psi - 2680 lbs.
55 psi - 2840 lbs.
60 psi - 3020 lbs.
65 psi - 3195 lbs.
70 psi - 3360 lbs.
75 psi - 3530 lbs.
80 psi - 3640 lbs.
LT275/70R18
35 psi - 2070 lbs.
40 psi - 2270 lbs.
45 psi - 2470 lbs.
50 psi - 2680 lbs.
55 psi - 2840 lbs.
60 psi - 3020 lbs.
65 psi - 3195 lbs.
70 psi - 3360 lbs.
75 psi - 3530 lbs.
80 psi - 3640 lbs.
Are the Load/Inflation table books only available to tire dealers etc or can they be purchased somewhere?
Elder User
Joined: Sep 2004
Posts: 750
Likes: 0
From: Weimar,TX
Thanks for the info Redford...good post! I have been running 60 in mine and the other day I turned left on a just rained road and it spun about 45 degrees before I could get it right. Will an additional 10 psi keep it from doing this?
Thanks
Thanks
Postmaster
Joined: Aug 2006
Posts: 2,829
Likes: 3
Originally Posted by farnorthdan
08 F250 PSD CC Ford recommends 75 psi cold but my tires are only rated for 65psi cold????
If you do not have factory tires we need to know what size you are currently running. Knowing your factory tire size and psi's listed on the door would also be helpful.
Postmaster
Joined: Dec 2003
Posts: 4,196
Likes: 10
From: Arizona
Originally Posted by farnorthdan
08 F250 PSD CC Ford recommends 75 psi cold but my tires are only rated for 65psi cold????
Junior User
Joined: Sep 2007
Posts: 89
Likes: 0
Sorry for the lack of info guys...BFGoodrich All-terrain T/A-KO...LT 305/55R20's on 20" XD rockstars flat black. Should I be running at max tire Pressure? (which is 65psi cold)
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Senior User
Joined: Sep 2007
Posts: 144
Likes: 0
Originally Posted by farnorthdan
Sorry for the lack of info guys...BFGoodrich All-terrain T/A-KO...LT 305/55R20's on 20" XD rockstars flat black. Should I be running at max tire Pressure? (which is 65psi cold)
Postmaster
Joined: Dec 2003
Posts: 4,196
Likes: 10
From: Arizona
Originally Posted by farnorthdan
Sorry for the lack of info guys...BFGoodrich All-terrain T/A-KO...LT 305/55R20's on 20" XD rockstars flat black. Should I be running at max tire Pressure? (which is 65psi cold)
Postmaster
Joined: Dec 2003
Posts: 4,196
Likes: 10
From: Arizona
Originally Posted by Scriv
I have a similar setup, my truck reccomended 65psi for the 275/65/18 conti's now I have 305/65/18 BF Goodrich All-Terrain KO's, when I got the truck from Discount I drove it around for a day or two (no more than 30miles) and hated the ride it felt very squishy and on corners it would feel 'loose' I checked the air pressure and they had 45psi, I bumped it up to 60psi and they feel great. Is this too much pressure? I would have put the full 65psi in there but I figured I was running them high as it was...
35 = 1940lb
40 = 2130
45 = 2310
50 = 2535 (C)
55 = 2660
60 = 2825
65 = 3000(D)
70 = 3150
75 = 3305
80 = 3415 (E)
LT305/65R18E (617 revs/mile)
Load at max inflation 65psi = 3525lb.
I don't have access to a Load/Inflation table for this tire as it is a relatively new size. Hopefully PowerStrokeHD will see this as he may have the table.
Junior User
Joined: Feb 2007
Posts: 72
Likes: 0
This info was provided to me by BFG through their customer service system. First I e-mailed, they provided a phone number to call. Spoke to a supervisor and this is the info they provided.
BFG 305-65-18 AT KO
40psi---------2470lbs
45psi---------2680lbs
50psi---------2910lbs
55psi---------3085lbs
60psi---------3280lbs
65psi---------3525lbs
I'm running a 2008 F-350 CC LWB with the diesel.
Front axle weight is 5460lbs
Rear axle weight is 3680lbs
Total weight is 9140lbs
Front psi is 55lbs
Rear psi is 50lbs
Yes, ride is somewhat comfortable. I'm 55 years old, I kind of like it. I don't notice any steering problems. No obvious over/understeer and no bump steer. I will be adding 5psi before I leave for Colorado to hunt in a couple of weeks.
BFG 305-65-18 AT KO
40psi---------2470lbs
45psi---------2680lbs
50psi---------2910lbs
55psi---------3085lbs
60psi---------3280lbs
65psi---------3525lbs
I'm running a 2008 F-350 CC LWB with the diesel.
Front axle weight is 5460lbs
Rear axle weight is 3680lbs
Total weight is 9140lbs
Front psi is 55lbs
Rear psi is 50lbs
Yes, ride is somewhat comfortable. I'm 55 years old, I kind of like it. I don't notice any steering problems. No obvious over/understeer and no bump steer. I will be adding 5psi before I leave for Colorado to hunt in a couple of weeks.
Postmaster
Joined: Dec 2003
Posts: 4,196
Likes: 10
From: Arizona
Originally Posted by havasulew
This info was provided to me by BFG through their customer service system. First I e-mailed, they provided a phone number to call. Spoke to a supervisor and this is the info they provided.
BFG 305-65-18 AT KO
40psi---------2470lbs
45psi---------2680lbs
50psi---------2910lbs
55psi---------3085lbs
60psi---------3280lbs
65psi---------3525lbs
I'm running a 2008 F-350 CC LWB with the diesel.
Front axle weight is 5460lbs
Rear axle weight is 3680lbs
Total weight is 9140lbs
Front psi is 55lbs
Rear psi is 50lbs
Yes, ride is somewhat comfortable. I'm 55 years old, I kind of like it. I don't notice any steering problems. No obvious over/understeer and no bump steer. I will be adding 5psi before I leave for Colorado to hunt in a couple of weeks.
BFG 305-65-18 AT KO
40psi---------2470lbs
45psi---------2680lbs
50psi---------2910lbs
55psi---------3085lbs
60psi---------3280lbs
65psi---------3525lbs
I'm running a 2008 F-350 CC LWB with the diesel.
Front axle weight is 5460lbs
Rear axle weight is 3680lbs
Total weight is 9140lbs
Front psi is 55lbs
Rear psi is 50lbs
Yes, ride is somewhat comfortable. I'm 55 years old, I kind of like it. I don't notice any steering problems. No obvious over/understeer and no bump steer. I will be adding 5psi before I leave for Colorado to hunt in a couple of weeks.
BTW Scriv, running 60psi shouldn't be a problem, you may get a little center tread wear so watch your tires, if you need to you can drop down to 55psi.
Elder User
Joined: Sep 2004
Posts: 750
Likes: 0
From: Weimar,TX
Originally Posted by redford
I doubt it, you just need a better wet traction tire.
except they are not good on wet roads, especially if it has just rained a little.
What brand is a good rain tire? Had Pirelli's on my other F250 and they seemed more stable in the rain, however it was 2WD, which I guess makes a difference.
Last edited by madjak; Oct 16, 2007 at 06:21 AM.
Rather Be Floatin
Joined: Oct 2005
Posts: 2,468
Likes: 0
From: Marble Falls, Tx.
Originally Posted by High-C
Anyone running the All Terrains? I'm running 285/70-17's and I just installed them. I haven't had a chance to find the "right" tire pressure...