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Ram Wheel and Tire FAQ
#21
05-15-2011, 01:03 PM
325 60 r20
Hello,
I have a 2006 Dodge Big Horn 4wd 4 door. My father-in-law, (the best father in law ever) just gave me a brand new set of 325 60 R20 mounted and balanced on brushed aluminum / black rims. The problem is that they do not fit. I can mount them, but the fronts rub when I turn. Any ideas?
Ben
I have a 2006 Dodge Big Horn 4wd 4 door. My father-in-law, (the best father in law ever) just gave me a brand new set of 325 60 R20 mounted and balanced on brushed aluminum / black rims. The problem is that they do not fit. I can mount them, but the fronts rub when I turn. Any ideas?
Ben
#23
11-27-2011, 04:34 PM
i have a 97 dodge ram 1500 with 7" skyjacker and 3" body lift i currently run 39x13.50r15 iroks i would like to go with somthing thats less aggressive due to the ride that comes with them. what would be a good size and brand i wouldnt mind going smaller but not to small that i have a lot of space in the fender well.
#24
12-26-2011, 03:20 PM
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I have some 37/12.50/16.5 Military oz tires I went out and got some pro comp wheels they are 9.25 in width! Will that bead up ok?
#25
03-21-2013, 03:05 PM
Wheel and tire combo
This may be a dead thread? But I thought I would at least try!
I've never been much of a truck guy until recently. Found myself in a 2001 ram 1500. Its running on stock rims and wheel size. I'm looking at beefing up the stance with a more aggressive wheel and tire. I have nothing against the stock wheel, and would keep it if at all plausible. The truck is stock height. If a could get a good looking tire underneath, I doubt I would rise the truck. So what I'm asking, what is most optimal tire size on the stock wheel to give it a better stance and more a/t capabilities, WITHOUT making it look awkward at the stock height? I'm always willing to entertain options with an aftermarket wheel, as well as the possibly of throwing on a 2" body life. I just wanna know my options without making it look awkward with a particular combination.
I've never been much of a truck guy until recently. Found myself in a 2001 ram 1500. Its running on stock rims and wheel size. I'm looking at beefing up the stance with a more aggressive wheel and tire. I have nothing against the stock wheel, and would keep it if at all plausible. The truck is stock height. If a could get a good looking tire underneath, I doubt I would rise the truck. So what I'm asking, what is most optimal tire size on the stock wheel to give it a better stance and more a/t capabilities, WITHOUT making it look awkward at the stock height? I'm always willing to entertain options with an aftermarket wheel, as well as the possibly of throwing on a 2" body life. I just wanna know my options without making it look awkward with a particular combination.
#26
03-27-2013, 11:46 PM
Rookie
I have a 98 dodge ram larmie 4x4 and sitting on 33 stock rims but it looks
Big the tires, whats the best size tire with the stock rims, dnt want it to big or small just
Want if perfect that match the truck.. Thankx
Big the tires, whats the best size tire with the stock rims, dnt want it to big or small just
Want if perfect that match the truck.. Thankx
#27
04-17-2013, 09:54 AM
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Let me preface this for a moment. I am not a wheel/tire expert. I am simply writing this part to answer some of the most basic questions. With that said... If you find any of the information here incorrect or unclear, please PM me and I will either fix it or try to make it more clear for you. If you still have questions or this post doesn't help you.. Post a reply and someone (or myself) will answer it!
There are a lot of questions posted about which size to use, and how wide of a wheel to use. So, here is an easy guide to refer to when looking for replacement tires. First, let's breakdown what the size numbers/letters mean:
P245/50R17 93V
P = Passenger Tire (does not appear always) // LT = Light Truck
245 = Section width (in millimeters)
50 = Section height or aspect ratio (ie. sidewall is 50% of section width)
R = Radial construction
17 = Rim diameter (in inches)
93 = Load Index
V = Speed symbol
All of the components of your tire size are important, but when choosing a replacement or plus size, many of those numbers will change. You may have a wider tire with lower aspect ratio and a larger wheel. However, the last two characters are the most important.
Standard Tire Sizing:
1500 4WD
Stock height: 265/75R16 (this is the stock tire size).
Probably OK: 285/75R16, 235/85R16, 255/85R16, 32/11.50-16.5
With a 2-3" lift: 33/12.5-16.5, 315/75R16
With a 4" Lift: 35/12.5-16.5
2500 4WD
6.5x16" steel wheels - 1994-2000 ST/SLT, 2001 ST
LT255/85R16D fits the stock rim, 33+" tall, spare fits in frame, 3000 Pound capacity (many reports)
33-11.50-16 thornbirds on stock rim
8x16" Forged Aluminum heels - 2001 SLT
LT295/75R16 on stock rim 33.5" tall - no rub
315/75R16 on stock rim and it only rub lightly at full lock.
Aftermarket Wheels and/or lifts:
LT285/75R16D fits with aftermarket rim, 33" tall. no lift needed (many reports)
33/12.50-16.5 - no problems
35/12.50-16.5 - Tires rub plastic inner fender when the steering is locked.
305/70R16 - Light rubbing at full lock of the wheel.
305/85R16 - ( 36" tall, 10.5" wide) with just a front leveling kit.
3500 2WD, 4WD
LT235/85R16E is generally agreed to bew the maximum size without spacers between the wheel rims, but brands vary in width - max section width is 9.4".
Bolt Pattern
The bolt pattern or bolt circle is the diameter of an imaginary circle formed by the centers of the wheel lugs. Bolt patterns can be 4, 5, 6, or 8 lug holes. A bolt circle of 4x100 would indicate a 4 lug pattern on a circle with a diameter of 100mm.
The bolt pattern for the Dodge Ram is 5 x 5.5†(inch)
Offset
What is an offset and how does it play into my wheel choice? First let's answer what an offset is. The offset is the distance from it's hub mounting surface to the centerline of the wheel. You have a positive, zero, or negative offset.
A simple picture...
Zero: The hub mounting is even with the centerline of the wheel. I rarely see a zero offset...
Positive: The hub mounting surface is toward the front or wheel side of the wheel. Positive offset wheels are generally found on front wheel drive cars and newer rear drive cars.
Negative: The hub mounting surface is toward the back or brake side of the wheels centerline. "Deep dish" wheels are typically a negative offset. Mostly found in alot of RWD cars.
As a side note...
If the offset of the wheel is not correct for the car, the handling can be adversely affected. When the width of the wheel changes, the offset also changes numerically. If the offset were to stay the same while you added width, the additional width would be split evenly between the inside and outside. For most cars, this won't work correctly.
Offset also becomes important if you are thinking about lowering your ride. If the offset is to not correct, you will have rubbing against the fenders. To get rid of this you will have to perfrom what has been popularly called "Fender-rolling", rolling the fenders out/in to give clearance for the new wheel/tire combination.
Backspacing
The distance from the hub to the back of the rim. This determines with how far the tire reaches into the wheelwell. If you get wide wheels and keep stock offset, the wheel will increase backspace toward the inside. If you want to keep stock backspacing, then you need a lot of offset (NOT desirable).
A wide wheel, with less backspacing puts extra stress on the bearings and seals, etc, etc because the center of the tire is farther away from the hub. A wide wheel with less backspacing can also cause more rubbing on the control arms and a reduced turning radius.
Ram Rim Dimensions
1994-1999 1500 2WD/4WD Aluminum Wheels
• Lug Pattern - 5 on 5.5", 1/2" bolt
• Rim Size - 16x7.0"
• Offset - +13.97mm
• Backspace - 5"
• Max Tire Size -
• 15x8.0 rims with 3.5" backspace will fit, but they stick out of the wheel wells.
2000-2001 1500 2WD/4WD 16" Aluminum Wheels• not posted yet
2000-2003 1500 2WD/4WD 17" Steel Wheels (Chrome or painted) • Lug Pattern: 5 on 5 1/2
• Rim Size: 17x7"
• Fits 94 and up 1500 trucks
2000-2003 1500 2WD/4WD 17" Aluminum Wheels:
• Lug Pattern: 5 on 5 1/2
• Weight: 23.5 pounds
• Rim Size: 17x8"
• Actual width edge to edge: 9 1/16"
• Backspacing: 5 9/16".
• The space from the outside edge to the mounting surface (against the rotor) is 3 1/2".
• offset calculate: 1 1/32"
• Fits 94 and up 1500 trucks
1994-2002 2500 2WD/4WD Steel Wheels:
• Lug Pattern - 8 on 6.5", 9/16" bolt
• Rim Size - 16x6.5"
• Offset - 4.75"
• Max Tire Size - 245/75R16, 255/85R16
2000-2002 2500 2WD/4WD Forged Aluminum Wheels:
• Lug Pattern - 8 on 6.5", 9/16" bolt
• Rim Size - 16x8"
• Offset - 6.25"
• Max Tire Size - ??
o Rear: Have a machine shop turn the widest part of the brake drum down by about 1/8.
o Front: If clearance is a problem, grind the steering components just enough to clear the wheel rim. The tie rod ends may need to be lightly touched with a peanut grinder. Make sure the front wheels are pushed all the way back to the rotor, or you could cinch up the lugs and bind the wheel in a bind/angle= wobbly wheel. It is a very close tolerance at the center circle in the wheel in front, but the wheels will fit.
Lug Nut Torque Specs:
• 80-110 ft lbs (108-150 Nm) on 5 stud wheels
• 120-150 ft lbs (163-203 NM) on 8 stud single wheels
• 130-160 ft lbs (176-217 NM) on 8 stud dual wheels
Useful Links:
Here is a wheel /tire size calculator: http://www.wheelsmaster.com/rt_specs.jsp
Most of the info found on this post is located here: http://dodgeram.org/tech/specs/Ramspecs.htm
There are a lot of questions posted about which size to use, and how wide of a wheel to use. So, here is an easy guide to refer to when looking for replacement tires. First, let's breakdown what the size numbers/letters mean:
P245/50R17 93V
P = Passenger Tire (does not appear always) // LT = Light Truck
245 = Section width (in millimeters)
50 = Section height or aspect ratio (ie. sidewall is 50% of section width)
R = Radial construction
17 = Rim diameter (in inches)
93 = Load Index
V = Speed symbol
All of the components of your tire size are important, but when choosing a replacement or plus size, many of those numbers will change. You may have a wider tire with lower aspect ratio and a larger wheel. However, the last two characters are the most important.
Standard Tire Sizing:
1500 4WD
Stock height: 265/75R16 (this is the stock tire size).
Probably OK: 285/75R16, 235/85R16, 255/85R16, 32/11.50-16.5
With a 2-3" lift: 33/12.5-16.5, 315/75R16
With a 4" Lift: 35/12.5-16.5
2500 4WD
6.5x16" steel wheels - 1994-2000 ST/SLT, 2001 ST
LT255/85R16D fits the stock rim, 33+" tall, spare fits in frame, 3000 Pound capacity (many reports)
33-11.50-16 thornbirds on stock rim
8x16" Forged Aluminum heels - 2001 SLT
LT295/75R16 on stock rim 33.5" tall - no rub
315/75R16 on stock rim and it only rub lightly at full lock.
Aftermarket Wheels and/or lifts:
LT285/75R16D fits with aftermarket rim, 33" tall. no lift needed (many reports)
33/12.50-16.5 - no problems
35/12.50-16.5 - Tires rub plastic inner fender when the steering is locked.
305/70R16 - Light rubbing at full lock of the wheel.
305/85R16 - ( 36" tall, 10.5" wide) with just a front leveling kit.
3500 2WD, 4WD
LT235/85R16E is generally agreed to bew the maximum size without spacers between the wheel rims, but brands vary in width - max section width is 9.4".
Bolt Pattern
The bolt pattern or bolt circle is the diameter of an imaginary circle formed by the centers of the wheel lugs. Bolt patterns can be 4, 5, 6, or 8 lug holes. A bolt circle of 4x100 would indicate a 4 lug pattern on a circle with a diameter of 100mm.
The bolt pattern for the Dodge Ram is 5 x 5.5†(inch)
Offset
What is an offset and how does it play into my wheel choice? First let's answer what an offset is. The offset is the distance from it's hub mounting surface to the centerline of the wheel. You have a positive, zero, or negative offset.
A simple picture...
Zero: The hub mounting is even with the centerline of the wheel. I rarely see a zero offset...
Positive: The hub mounting surface is toward the front or wheel side of the wheel. Positive offset wheels are generally found on front wheel drive cars and newer rear drive cars.
Negative: The hub mounting surface is toward the back or brake side of the wheels centerline. "Deep dish" wheels are typically a negative offset. Mostly found in alot of RWD cars.
As a side note...
If the offset of the wheel is not correct for the car, the handling can be adversely affected. When the width of the wheel changes, the offset also changes numerically. If the offset were to stay the same while you added width, the additional width would be split evenly between the inside and outside. For most cars, this won't work correctly.
Offset also becomes important if you are thinking about lowering your ride. If the offset is to not correct, you will have rubbing against the fenders. To get rid of this you will have to perfrom what has been popularly called "Fender-rolling", rolling the fenders out/in to give clearance for the new wheel/tire combination.
Backspacing
The distance from the hub to the back of the rim. This determines with how far the tire reaches into the wheelwell. If you get wide wheels and keep stock offset, the wheel will increase backspace toward the inside. If you want to keep stock backspacing, then you need a lot of offset (NOT desirable).
A wide wheel, with less backspacing puts extra stress on the bearings and seals, etc, etc because the center of the tire is farther away from the hub. A wide wheel with less backspacing can also cause more rubbing on the control arms and a reduced turning radius.
Ram Rim Dimensions
1994-1999 1500 2WD/4WD Aluminum Wheels
• Lug Pattern - 5 on 5.5", 1/2" bolt
• Rim Size - 16x7.0"
• Offset - +13.97mm
• Backspace - 5"
• Max Tire Size -
• 15x8.0 rims with 3.5" backspace will fit, but they stick out of the wheel wells.
2000-2001 1500 2WD/4WD 16" Aluminum Wheels• not posted yet
2000-2003 1500 2WD/4WD 17" Steel Wheels (Chrome or painted) • Lug Pattern: 5 on 5 1/2
• Rim Size: 17x7"
• Fits 94 and up 1500 trucks
2000-2003 1500 2WD/4WD 17" Aluminum Wheels:
• Lug Pattern: 5 on 5 1/2
• Weight: 23.5 pounds
• Rim Size: 17x8"
• Actual width edge to edge: 9 1/16"
• Backspacing: 5 9/16".
• The space from the outside edge to the mounting surface (against the rotor) is 3 1/2".
• offset calculate: 1 1/32"
• Fits 94 and up 1500 trucks
1994-2002 2500 2WD/4WD Steel Wheels:
• Lug Pattern - 8 on 6.5", 9/16" bolt
• Rim Size - 16x6.5"
• Offset - 4.75"
• Max Tire Size - 245/75R16, 255/85R16
2000-2002 2500 2WD/4WD Forged Aluminum Wheels:
• Lug Pattern - 8 on 6.5", 9/16" bolt
• Rim Size - 16x8"
• Offset - 6.25"
• Max Tire Size - ??
o Rear: Have a machine shop turn the widest part of the brake drum down by about 1/8.
o Front: If clearance is a problem, grind the steering components just enough to clear the wheel rim. The tie rod ends may need to be lightly touched with a peanut grinder. Make sure the front wheels are pushed all the way back to the rotor, or you could cinch up the lugs and bind the wheel in a bind/angle= wobbly wheel. It is a very close tolerance at the center circle in the wheel in front, but the wheels will fit.
Lug Nut Torque Specs:
• 80-110 ft lbs (108-150 Nm) on 5 stud wheels
• 120-150 ft lbs (163-203 NM) on 8 stud single wheels
• 130-160 ft lbs (176-217 NM) on 8 stud dual wheels
Useful Links:
Here is a wheel /tire size calculator: http://www.wheelsmaster.com/rt_specs.jsp
Most of the info found on this post is located here: http://dodgeram.org/tech/specs/Ramspecs.htm
#28
06-18-2013, 02:08 PM
great post new questions...
Got stock 265/75R17 on my 04 Ram reg cab 4x4 (No markings slt st) but she's "plain jane" roll up windows unpowered lock, standard bench seat not even a heated mirror! That's alright by me, she's got a 4.7 mag with 5 on the floor.
What can I say? The wrangler M+S all season tire got me stuck in a hay field
in two inch's of water!
So here in the great white north, the same size tire with a "aggressive tread"
(not overly aggressive) will cost me about 300.00 each installed and balanced.
Yep...my rectum is now twitching thinking on that one! Guy say's I'll lose 10 to 20 km per tank using these tires.(True /False? I am a "granny driver")
Got a buddy wants to get me a set of 265/85R17 probably for about half the price, super aggressive but used for 3/4ton (2500) Rams....
Questions...one turning radius will this "85" effect it and will the fit in the wheel wells?
I know it going to screw up my speedo reading 60 mph will actually be doing 54? (aprox) and to boot everything up here is in "foreign-neese" KMPH instead of MPH ...etc.
I will call tonight, I know I will probably lose gas mileage being both really aggressive and bigger tire....but is this doable?
BTW the post is fantastic but only seems to run to 2002/03....I am absolutely positive the newer vehicles are a whole new ball game!
Any help much appreciated!
What can I say? The wrangler M+S all season tire got me stuck in a hay field
in two inch's of water!
So here in the great white north, the same size tire with a "aggressive tread"
(not overly aggressive) will cost me about 300.00 each installed and balanced.
Yep...my rectum is now twitching thinking on that one! Guy say's I'll lose 10 to 20 km per tank using these tires.(True /False? I am a "granny driver")
Got a buddy wants to get me a set of 265/85R17 probably for about half the price, super aggressive but used for 3/4ton (2500) Rams....
Questions...one turning radius will this "85" effect it and will the fit in the wheel wells?
I know it going to screw up my speedo reading 60 mph will actually be doing 54? (aprox) and to boot everything up here is in "foreign-neese" KMPH instead of MPH ...etc.
I will call tonight, I know I will probably lose gas mileage being both really aggressive and bigger tire....but is this doable?
BTW the post is fantastic but only seems to run to 2002/03....I am absolutely positive the newer vehicles are a whole new ball game!
Any help much appreciated!
#29
06-21-2013, 09:07 AM
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Join Date: Jul 2012
Location: wapakoneta
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I've got a 98 ram 1500 quad cab slt, looks like its stock height and doesn't look like there's been any kind of lift (body or suspension) currently have 265/75r16 on it now but tires are getting bald found some 305/70r16 pretty cheap. Would I be able to mount them on my truck or would it cause problems. My truck is my profile pic on here and should be able to see the 265/75r16 and how they look compared to the wheel well on my truck. I don't think it would have any problems with the tires but the people I've been asking have their doubts and told me to check here.
