PSD Tire Sizes
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Senior User
Joined: Jun 2005
Posts: 115
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From: Connecticut
PSD Tire Sizes
What are the opinions out there about tires based on the following:
Load Rating v.s. Size
Stock tires are E rated 265/75R16, anything larger than stock, & I see only D rating at best. Are D rated tire sidewalls to soft for these heavy trucks?
What is the tallest tire for a 16" stock width rim (I think it's 7" wide.)
Will 305/70R16 work on the stock rim and not rub on the truck?
I'm trying to find a tall-skinny tire that will work with the stock rims.
The best I could find so far is the BFG MT 295/75R16, same with the Goodyear MTR's.
Thanks for the input...
Load Rating v.s. Size
Stock tires are E rated 265/75R16, anything larger than stock, & I see only D rating at best. Are D rated tire sidewalls to soft for these heavy trucks?
What is the tallest tire for a 16" stock width rim (I think it's 7" wide.)
Will 305/70R16 work on the stock rim and not rub on the truck?
I'm trying to find a tall-skinny tire that will work with the stock rims.
The best I could find so far is the BFG MT 295/75R16, same with the Goodyear MTR's.
Thanks for the input...
Senior User
Joined: Mar 2006
Posts: 434
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From: San Antonio, Tx.
D rated tires should be fine for most applications, but it also depends on how much sidewall you have. I would call your local tire shop and have them give you a load rating in pounds for the particular tire you are looking for. Most Discount tires have a program that will give you this number.
Depending on the truck you have and the type of tred you run, you can fit up to 315/75's without rubbing with 4x4,stock suspension and All-terain tires.
Look for the tire to rub on the fender skirt on the back of the wheel well or the lower corner of the bumper. The skirts can be trimmed to allow the tire to pass. If there is no rub there, watch for it on the springs.
Most tire shops will let you test fit a set of tires, so follow them in the shop and have one of the techs turn the wheel while you look for rubbing.
as far as the tires you are looking at, the stock tires 265/75 are roughly 31.9"x10.6",
the 305/70's are 33.1"x12.2", and the 295/75's are 33.7"x11.8.
In all terain, they all should fit if you have 4x4. However, mud tires tend to have a more squared off sidewall and may grab further out.
I hope this helps.
Depending on the truck you have and the type of tred you run, you can fit up to 315/75's without rubbing with 4x4,stock suspension and All-terain tires.
Look for the tire to rub on the fender skirt on the back of the wheel well or the lower corner of the bumper. The skirts can be trimmed to allow the tire to pass. If there is no rub there, watch for it on the springs.
Most tire shops will let you test fit a set of tires, so follow them in the shop and have one of the techs turn the wheel while you look for rubbing.
as far as the tires you are looking at, the stock tires 265/75 are roughly 31.9"x10.6",
the 305/70's are 33.1"x12.2", and the 295/75's are 33.7"x11.8.
In all terain, they all should fit if you have 4x4. However, mud tires tend to have a more squared off sidewall and may grab further out.
I hope this helps.
Junior User
Joined: Apr 2004
Posts: 67
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From: Whitefish MT
lookout if you have OEM mudflaps
Early on, I installed Ford's mudflaps (why they didn't come stock on a Lariat is beyond me).
Recently I went from the OEM 265/75/16s to a 285/75/16 and they rubbed on the mudflap.
I just modified the mudflap spacer.
The 285 D (8-ply) are supposed to be rated for as much weight as the 265 E (10-ply). Regardless, I like 'em (and they were cheaper).
Toyo, Open Country btw.
todd
Recently I went from the OEM 265/75/16s to a 285/75/16 and they rubbed on the mudflap.
I just modified the mudflap spacer.
The 285 D (8-ply) are supposed to be rated for as much weight as the 265 E (10-ply). Regardless, I like 'em (and they were cheaper).
Toyo, Open Country btw.
todd
Elder User
Joined: Mar 2003
Posts: 567
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From: Mandeville, La
The E range tire is a stiffer sidewall for handling a load.
285/75/16 is a tall tire that will fit the stock rim. It is the widest tire that comfortably fits accodring to the tire shops that I visisted.
Remember that when you get width, you usually get height. 285 is 285 mm wide and 75 is 75% of the width is the height. For a tip, if you use tire rack or anything similar, use a 350 SRW even if you have a 250. That will start you off with the 265/75/16 optional tire that comes on a 250.
The 285 is a great looking tire on 2wd or 4wd IMO.
285/75/16 is a tall tire that will fit the stock rim. It is the widest tire that comfortably fits accodring to the tire shops that I visisted.
Remember that when you get width, you usually get height. 285 is 285 mm wide and 75 is 75% of the width is the height. For a tip, if you use tire rack or anything similar, use a 350 SRW even if you have a 250. That will start you off with the 265/75/16 optional tire that comes on a 250.
The 285 is a great looking tire on 2wd or 4wd IMO.
Lead Driver
Joined: Oct 2004
Posts: 7,413
Likes: 1
From: Columbia, MO
I'll have new wheels and tires coming soon. 325/60R18s on a 18x9 rim. I shouldn't have any rubbing issues, with a 4" lift.
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Senior User
Joined: Nov 2005
Posts: 392
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From: Heber UT
Originally Posted by jtharvey
I'll have new wheels and tires coming soon. 325/60R18s on a 18x9 rim. I shouldn't have any rubbing issues, with a 4" lift.
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Lead Driver
Joined: Oct 2004
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From: Columbia, MO
Yeah. I've had to deal with the offset thing before, trying to get wheels for vehicles in the past. But, I don't know what's reccomended for sure for these trucks. I'm not opposed to adding some fender flares if the tires stick out past the fender. Just don't want too much because of the extra stress it puts on the components. The wheels I'm looking at have a -12mm offset and 4.5" backspacing. Any idea on where that will locate them on the truck?
Post Fiend
Joined: Feb 2006
Posts: 11,892
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From: Middle Tennessee
Originally Posted by hllon4whls
The E range tire is a stiffer sidewall for handling a load.
285/75/16 is a tall tire that will fit the stock rim. It is the widest tire that comfortably fits accodring to the tire shops that I visisted.
Remember that when you get width, you usually get height. 285 is 285 mm wide and 75 is 75% of the width is the height. For a tip, if you use tire rack or anything similar, use a 350 SRW even if you have a 250. That will start you off with the 265/75/16 optional tire that comes on a 250.
The 285 is a great looking tire on 2wd or 4wd IMO.
285/75/16 is a tall tire that will fit the stock rim. It is the widest tire that comfortably fits accodring to the tire shops that I visisted.
Remember that when you get width, you usually get height. 285 is 285 mm wide and 75 is 75% of the width is the height. For a tip, if you use tire rack or anything similar, use a 350 SRW even if you have a 250. That will start you off with the 265/75/16 optional tire that comes on a 250.
The 285 is a great looking tire on 2wd or 4wd IMO.
Senior User
Joined: Nov 2005
Posts: 392
Likes: 1
From: Heber UT
Originally Posted by jtharvey
Yeah. I've had to deal with the offset thing before, trying to get wheels for vehicles in the past. But, I don't know what's reccomended for sure for these trucks. I'm not opposed to adding some fender flares if the tires stick out past the fender. Just don't want too much because of the extra stress it puts on the components. The wheels I'm looking at have a -12mm offset and 4.5" backspacing. Any idea on where that will locate them on the truck?
Lead Driver
Joined: Oct 2004
Posts: 7,413
Likes: 1
From: Columbia, MO
Did some searching last night. Someone posted that the stock wheels have a 4.5" backspace. So, the new ones will probably stick out a little wider, but clear the suspension bits just fine. However, the confusing thing about the wheels I'm looking at states they're a 9" wide wheel, with 4.5" backspacing, and a -12mm offset. Offset and backspacing are related, and those measurements don't seem to go together. A 4.5" backspacing on a 9" wheel should have a 0 offset, correct? Here's a link I found to some wheel tech explainations:
http://www.rsracing.com/tech-wheel.html
http://www.rsracing.com/tech-wheel.html