285/75 or 315/75?
Thread Starter
|
New User
Joined: Jan 2011
Posts: 22
Likes: 0
285/75 or 315/75?
I dont know if i should get the 285/75 or 315/75 tires because ive been told that with the larger tires i will be getting much less power to them. I have a 1990 f250 4x4 with a 351 engine and 410 axles. I know the enginge is alot weaker than it once was but i also like the look and offroad performance of a wider tire so i am debabting what size to go with. any suggestions?
Senior User
Joined: Jul 2009
Posts: 154
Likes: 1
From: Sesser Il
I have 315/76/16's on my 95, but they came on the truck so I can't say for sure what they do for the power. I do know that in over drive at 55 mph, the rpm's are a little low, so if I am trying to watch my speed (55 mh) and have any load, a lot of times I have to run in 4th gear. I have been looking at tires, but I want to go thinner, less snow and mud to push. I looked at 285's, but I am leaning toward 255/85/16's which are around if not slightly taller than the 285's, but only 10" wide instead of around 11.2" for the 285's and 12.4" for the 315's. I had a 87 F250 for a while with 235/85/16's and loved the skinny tires, they would get down and dig rather than spinning on top. The only thing I am finding with the 255's, is that there are manufacturers making them. Hope this helps.
TC
TC
Senior User
Joined: Jul 2009
Posts: 154
Likes: 1
From: Sesser Il
Glad that I could help in any way. I like the way the 315's look, however I would like to get a little more power back by going a little smaller and narrower. My truck too, I am sure is down on power, as it is showing 292,xxx on the OD, but I am sure somewhere along the way, the motor has been changed, but when I don't know.
TC
TC
New User
Joined: Mar 2007
Posts: 18
Likes: 0
I had the same debate and ended up going with the 315/75s for the looks. Mine is a F250 SC w/460/5 spd/3.55s and even with the bigger engine the loss in acceleration was immediately noticeable. I drove it for about 8 months where I couldn't turn the wheels full lock until I finally got a lift on it about 4 months ago. Now with the lift (4") the truck looks awesome but rides like crap compared to stock. Even with a drop pitman arm it still has a bunch of bump steer that it didn't have before.
I've recieved a ton of comments on how good it looks but honestly if I had to do it over again I would have stayed stock height and done the 285s instead. Oh well. Live and learn.
Now mine is a daily driver about 6 months out of the year. If this is just a trail rig or a weekend toy then I'd say 315s all the way. If you plan on driving it a lot I'd go with 285s.
Steve
I've recieved a ton of comments on how good it looks but honestly if I had to do it over again I would have stayed stock height and done the 285s instead. Oh well. Live and learn.
Now mine is a daily driver about 6 months out of the year. If this is just a trail rig or a weekend toy then I'd say 315s all the way. If you plan on driving it a lot I'd go with 285s.
Steve
Senior User
Joined: Dec 2009
Posts: 203
Likes: 0
From: Boise, Idaho
I have the 315 75-16's on my '02 PSD, regardless, with those 410 gears and a descent running 351 you shouldn't have any issues, I coulnt even tell on mine when I went from 285 75-16's to the 315's and I have the 3/4 ton 3.73 gears. Fuel economy is probably going to be your biggest issue, especially running that mid size gasser...hope my 2cents is helpful!! Your rig will look sweet with the 315's though!!
Elder User
Joined: Jan 2004
Posts: 668
Likes: 3
From: NW Kans
I would go with the 285s. I own both sizes on different trucks but for what you have i would stick with smaller ones. they are cheaper and fit easier and use less power.
Trending Topics
New User
Joined: Jan 2012
Posts: 13
Likes: 0
The 285's are cheaper, you get better power/mpg, and they look good too. I'd stick with 285's.
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
Thread
Thread Starter
Forum
Replies
Last Post
countryshiz87
1987 - 1996 F150 & Larger F-Series Trucks
4
Dec 21, 2011 10:50 PM
frenchslandscape
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
35
Jan 23, 2009 03:06 PM
FordF350Baby
Brakes, Steering, Suspension, Tires, & Wheels
11
Jul 18, 2007 12:21 PM
goodwrench
Brakes, Steering, Suspension, Tires, & Wheels
15
Jun 25, 2005 12:48 PM
Matthew Groves
1999 - 2003 7.3L Power Stroke Diesel
17
Jul 28, 2004 01:02 AM
