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Got an 04 F250 Superduty Crew Cab, 6L Powerstroke.. I just put on BFG T/A KO 315/75R16 D Load Range.. They are at 50psi.. I'm curious if this is safe.. For instance if I happen to go get a flat bed Uhaul Trailer to haul a car.. Or do I need to be looking for E Load 35's?
Don't know much bout tires.. Other then sizes and fitting lol.
Hey Storm,
I feel your pain. Here's the short answer. Your tires will have the actual max weight listed on them in very small print. Just look at the sticker on the inside of your driver's side door and it will list the GAWR or Gross Axle Weight Rear and the GAWF for Gross Axle Weight Front. Divide that in half and that will be your max poundage per tire. As long as your new tires are at that or over, you're golden.
One caveat.... I just got rid of D range Nitto Terra Grapplers in 295 75 16 because the sidewalls were too soft and the front tires mushed out always appearing low. I drive on the highway a lot (80 mph) and always worried about a blowout. So I just got BFG 285 75 16's E load range put on last week. Much stiffer sidewall, rougher ride, but they hold the weight of that heavy engine without mushing out like my Nitto's did.
I have the same truck as you with the long bed. Does your truck bounce if you keep the speed at a steady 41 to 44 mph? Just asking because the tire guy asked me if my truck bounces due to all four tires being "cupped out." I'm hoping this doesn't happen to my new BFG's.
I have the same truck as you with the long bed. Does your truck bounce if you keep the speed at a steady 41 to 44 mph? Just asking because the tire guy asked me if my truck bounces due to all four tires being "cupped out." I'm hoping this doesn't happen to my new BFG's.
No I dont feel anything.. She's rather smooth.. I do have vibration at 65 but thats due to my carriage.. Need to fix the shim.. Other then that the DR 4.5" Lift is smooth.. I went over some curbs this weekend and didnt even feel em.. She's real smooth, smoother then I thought... I could tell a massive difference over stock and to the Lift.
E Load range is standard but what you need to always look at is the actual load acrrying capacity of the tire size.. for example ( I don't have my book with me so the #'s are not accurate) If you have a lt 235-85-16 E you may have a load carrying capacity of 3500 lbs . however if you went to a lt 285-75-16 D it may be the same or better...Many times tires such as 20 inch a standard load is awful close to the E range in the stock tires...The important thing is the load carrying capacity.
I would say that you are OK. The one thing nice about the BFG is even though they are a Load Range D tire, they still have a 3 ply sidewall just like a Load Range E does. If you ran your new tires at 45psi front and 50psi rear you would have the same (actually a few pounds more) carrying capacity as the factory tires, so towing/hauling should be no problem. If you need more pressure than that you are overloaded. Here is the load/inflation table for 315/75R16.
I would say that you are OK. The one thing nice about the BFG is even though they are a Load Range D tire, they still have a 3 ply sidewall just like a Load Range E does. If you ran your new tires at 45psi front and 50psi rear you would have the same (actually a few pounds more) carrying capacity as the factory tires, so towing/hauling should be no problem. If you need more pressure than that you are overloaded. Here is the load/inflation table for 315/75R16.
Ah.. I have 50psi in all 4 so I'm good if say I needed to get a trailer from Uhaul and haul a car or anything.. I just dont wanna blow out 35s on the highway.. It would prob flip my truck lol..
You will be just fine. The only thing I would watch is the front to make sure the tire is not crowning. If the center of the tread starts to wear faster than the edges, you may want to drop it down to 45psi.
The ideal way to determine the pressure of a new size tire is to compare load/inflation tables for the 2 sizes and set them as close as possible. Im not sure what your factory tire size or pressures were so it is hard to make a exact comparison.