wheel ?
#1
wheel ?
I don't understand wheel width. I think I have a 7" wide wheel, how wide of a tire can I put on there ? What wheels come on an FX4 L2 ? 15x8 ?
I want 31x10.5 BFG MT's I think later down the road post a lift kit I think I would want to step up to 33's or maybe 35's X 12.5.
My thinking is can I fit 31X10.5 on stock wheels ? If not I want to buy after market wheels that can later down the road handle 33 or 35 X 12.5.
I want 31x10.5 BFG MT's I think later down the road post a lift kit I think I would want to step up to 33's or maybe 35's X 12.5.
My thinking is can I fit 31X10.5 on stock wheels ? If not I want to buy after market wheels that can later down the road handle 33 or 35 X 12.5.
#2
first if you have a stock wheel its 7" wide. second do YOU have a 16" wheel or 15" wheel am guessing 16. on the level II they come with a 15x7 alcola wheel. if you have stock 15" dont run over a 31x10.5x15 or a 33x10.5x15. now if you have a 16" rim get some 265x75x16(32x10.5x16) same size tire am running right now.
#3
Originally Posted by Redneckstone
265x75x16(32x10.5x16) same size tire am running right now.
Edit never mind
Originally Posted by n3elz
Simple formula (internet calculators suck): First number * second number / 1270 + rim size. No one pays attention when I post this stuff -- they all want it done for them.
245x75x16
First number: 245
Second number: 75
Rim size: 16
245 * 75 = 18375
18375 / 1270 = 14.5 (rounded)
14.5 + 16 = 30.5
So your orignal tires were about 31" tall.
Get 31x10.5x15 tires as your closest fit, and get 15x8 rims. You will end up with a rim with more backspacing (that's just how they come standard now) and so your tires will stick out a bit more, but not so much that you'll mind, and it looks good.
245x75x16
First number: 245
Second number: 75
Rim size: 16
245 * 75 = 18375
18375 / 1270 = 14.5 (rounded)
14.5 + 16 = 30.5
So your orignal tires were about 31" tall.
Get 31x10.5x15 tires as your closest fit, and get 15x8 rims. You will end up with a rim with more backspacing (that's just how they come standard now) and so your tires will stick out a bit more, but not so much that you'll mind, and it looks good.
Last edited by Ranger1; 04-29-2005 at 09:38 AM.
#4
#5
Two things to consider with wheel width (got your PM, Ben, and thanks).
1. Wheel widths are based on recommendations from the TIRE manufacturer. The reason you want to stay in them is an overall balance of tire wear and performance. If you use a narrower rim, you can air down more offroad generally, but on the street you will wear the center of the tire more since narrower rims cause the tread to "arch". Wider wheels than recommended will tend to wear the tread edges more, and the bead will be more prone to being dislodged.
2. Backspacing is the measurement from the back (inside, nearer the suspension) edge of the rim to the mounting plate that contacts the brake rotor or drum. Stock Ranger wheels are either 4.5" or 4.75" (depending on who you talk to -- I'm still not sure which is right or if BOTH are right with different wheels). Most 15x8 and many other size aftermarket wheels have 3.25" to 3.75" backspacing standard. This pushes your wheels out a bit more and can help on the inside of the wheel well with clearing bigger tires, but sometimes cause problems with the fender lip or flare.
The only way to know if a wheel is appropriate for a given tire is to go to the manufacturers data (usually on their website) and see what "range" or rim widths they recomment, and what they consider "nominal". Tire dimensions are based on that nominal width which can be called "measured width" or whatever. Somewhere, they usually tell you what size rim they used when they took the dimensions of the tire.
I'm running 35's with 15x8's which is not optimum -- but is commonly done.
Also, make sure your metric sized tire is still rated "LT". Some prices are too good to be true: they are a big tire built like a "P" tire for passenger car service and do NOT have the sidewall strength of LT rate tires. I occasionally hear arguments about tire price where one guy is clearly buying the LT and the other guy ISN'T and the guy with the cheaper price thinks he got such a great deal. Some tire dealers won't tell you they are selling you a P rated tire either. Make sure you specify that, or check on it in some way before buying.
1. Wheel widths are based on recommendations from the TIRE manufacturer. The reason you want to stay in them is an overall balance of tire wear and performance. If you use a narrower rim, you can air down more offroad generally, but on the street you will wear the center of the tire more since narrower rims cause the tread to "arch". Wider wheels than recommended will tend to wear the tread edges more, and the bead will be more prone to being dislodged.
2. Backspacing is the measurement from the back (inside, nearer the suspension) edge of the rim to the mounting plate that contacts the brake rotor or drum. Stock Ranger wheels are either 4.5" or 4.75" (depending on who you talk to -- I'm still not sure which is right or if BOTH are right with different wheels). Most 15x8 and many other size aftermarket wheels have 3.25" to 3.75" backspacing standard. This pushes your wheels out a bit more and can help on the inside of the wheel well with clearing bigger tires, but sometimes cause problems with the fender lip or flare.
The only way to know if a wheel is appropriate for a given tire is to go to the manufacturers data (usually on their website) and see what "range" or rim widths they recomment, and what they consider "nominal". Tire dimensions are based on that nominal width which can be called "measured width" or whatever. Somewhere, they usually tell you what size rim they used when they took the dimensions of the tire.
I'm running 35's with 15x8's which is not optimum -- but is commonly done.
Also, make sure your metric sized tire is still rated "LT". Some prices are too good to be true: they are a big tire built like a "P" tire for passenger car service and do NOT have the sidewall strength of LT rate tires. I occasionally hear arguments about tire price where one guy is clearly buying the LT and the other guy ISN'T and the guy with the cheaper price thinks he got such a great deal. Some tire dealers won't tell you they are selling you a P rated tire either. Make sure you specify that, or check on it in some way before buying.
#6
stock OEM Ford Alcoa rims are 15 x 7 with a 3.75 inch back space
the BFG specifications call for a rim width no narrower than 3.5 inches and no wider than 1.5 inch less than the mounted tire width for 15" rims
this suggested specification is the same for AT or MT tires
if you want to put on a 12.5 inch wide tire on a 15" rim, the rim should be between 9 and 11 inches wide
the BFG specifications call for a rim width no narrower than 3.5 inches and no wider than 1.5 inch less than the mounted tire width for 15" rims
this suggested specification is the same for AT or MT tires
if you want to put on a 12.5 inch wide tire on a 15" rim, the rim should be between 9 and 11 inches wide
#7
Originally Posted by LILBLUE04FX4L2
stock OEM Ford Alcoa rims are 15 x 7 with a 3.75 inch back space
the BFG specifications call for a rim width no narrower than 3.5 inches and no wider than 1.5 inch less than the mounted tire width for 15" rims
this suggested specification is the same for AT or MT tires
if you want to put on a 12.5 inch wide tire on a 15" rim, the rim should be between 9 and 11 inches wide
the BFG specifications call for a rim width no narrower than 3.5 inches and no wider than 1.5 inch less than the mounted tire width for 15" rims
this suggested specification is the same for AT or MT tires
if you want to put on a 12.5 inch wide tire on a 15" rim, the rim should be between 9 and 11 inches wide
While still a little uncertain what I want to do exactly it looks like if I bought 9 inch wide wheels I could fit a 10.5 or 12.5 inch tire.
John do you know how wide your tires are 10.5 ?
#10
#12
#14
Originally Posted by LILBLUE04FX4L2
stock OEM Ford Alcoa rims are 15 x 7 with a 3.75 inch back space
the BFG specifications call for a rim width no narrower than 3.5 inches and no wider than 1.5 inch less than the mounted tire width for 15" rims
this suggested specification is the same for AT or MT tires
if you want to put on a 12.5 inch wide tire on a 15" rim, the rim should be between 9 and 11 inches wide
the BFG specifications call for a rim width no narrower than 3.5 inches and no wider than 1.5 inch less than the mounted tire width for 15" rims
this suggested specification is the same for AT or MT tires
if you want to put on a 12.5 inch wide tire on a 15" rim, the rim should be between 9 and 11 inches wide
Is it 3.75 also?
What I really want to know is if the BFG 31X10.50 wil fit on the stock 15X7 rim
#15
interesting maybe a set of 10 inch wheels and run 32x11.5 for a while then later I could go for some 35x12.5, and I would already have 10 inch wide wheels.
I know you said you "should" have 10's but the 8's work for you with your current lift set up. What could happend because you are only running 8's besides more rapid wear on street ?
I know you said you "should" have 10's but the 8's work for you with your current lift set up. What could happend because you are only running 8's besides more rapid wear on street ?
#16
#17
Originally Posted by Ranger1
interesting maybe a set of 10 inch wheels and run 32x11.5 for a while then later I could go for some 35x12.5, and I would already have 10 inch wide wheels.
I know you said you "should" have 10's but the 8's work for you with your current lift set up. What could happend because you are only running 8's besides more rapid wear on street ?
I know you said you "should" have 10's but the 8's work for you with your current lift set up. What could happend because you are only running 8's besides more rapid wear on street ?
#20
#22
DOH! I only dealt with part of his question!!!
YES, you can run 31x10.5x15 on stock wheels. I ran my 31x10.5x15 Cooper S/T's originally on the stock rims. However, at normal inflation pressure, I began to note more center wear and upgraded to 15x8 Mickey Thompson Classic II's.
Truck on 31x10.5x15 with the stock 15x7 wheels
Same tires on 15x8 Mickey Thompson wheels -- note how much more they "stick out"
YES, you can run 31x10.5x15 on stock wheels. I ran my 31x10.5x15 Cooper S/T's originally on the stock rims. However, at normal inflation pressure, I began to note more center wear and upgraded to 15x8 Mickey Thompson Classic II's.
Truck on 31x10.5x15 with the stock 15x7 wheels
Same tires on 15x8 Mickey Thompson wheels -- note how much more they "stick out"
#24
Think "Edge 4x2" -- they had different wheels than the 4x4's in many cases. Mine came with 15x7 "painted aluminum" wheels as part of the "Edge Plus" package.
If anyone want's my old wheels, they are available for $100 for all four. There's some rock scrapes on the very edges, but overall they're in good shape. If you want to go to 15's, Ben, and want a cheap way to run 31's for now, you can get these from me. Then trade up when you go up in size. Just one more option.
If anyone want's my old wheels, they are available for $100 for all four. There's some rock scrapes on the very edges, but overall they're in good shape. If you want to go to 15's, Ben, and want a cheap way to run 31's for now, you can get these from me. Then trade up when you go up in size. Just one more option.