See all All Country A/T tire sizes Write a Review 35/12.5-R17 tires are 2.32 inches (58.92 mm) larger in diameter than 285/70-R17 tires and the speedometer difference is 6.6% Depends on if it's a 33 for a 15 inch rim or for a 16 inch rim. 285 = the width of the tread in mmeval(ez_write_tag([[728,90],'4wheeldriveguide_com-medrectangle-4','ezslot_4',115,'0','0'])); 75 = the height percentage of the sidewall in mm (285 width x .75 = 213.75mm). Metric to Standard Tire Conversion Chart for 20 inch Wheels; Metric Standard; 325/50/20: 33.0"x 13.2" Metric … Silverado 33-inch tires and no lift – Options; ... 285/75R17 = 33.8×11.2R17 295/70R17 = 33.3×11.6R17 305/70R17 = 33.8x12R17 33X10.5R17 33X12.5R17 33X13R17 33X13.5R17 33X9.5R17: … This means a 33 inch tires can be wider by 11 1/2 or 12 1/2 inches in width. A wider tires will require more wheel arch clearance and room to move when flexing off-road and when turning at full lock. On most three-quarter ton (2500) and 1-ton (3500) trucks a 33" tall tire will fit without modifications, depending on the tire width and wheel offset. There are however a few limitations, especially when it comes to IFS (Independent Front Suspension) 4WD vehicles.eval(ez_write_tag([[336,280],'4wheeldriveguide_com-large-leaderboard-2','ezslot_11',118,'0','0'])); Let’s now look at a few factors to consider when fitting 33” tires on your truck. This is especially important for overcoming obstacles in an off-road situation. The added clearance, aggressive look, and improved traction and stability in my opinion is well worth it. Let’s see what that looks like in a formula form. Tire Brands. This is especially true if you want to retain full functionality and articulation which is important for off-road. 35" Tire Diameter … Passenger tires will be rated Light Load (LL), Standard Load (SL), or Extra Load (XL). In the case of a SFA or LIVE axle, the axle is not physically attached to the chassis. These will need to be removed/modified first so as not to damage the new tires. 285/75-R16 tires are 0.1 inches (2.62 mm) smaller in diameter than 33/11.5-R15 tires and the speedometer difference is 0.3% Table of Contents. You get positive and negative offset wheels. Fitting 33” tires to a Solid/Live axle truck requires less additional modifications and in most cases little to no Body or arch modifications. I was VERY disappointed with the performance. Backspacing is the distance measured from the hub mounting surface to the inside edge of the wheel. So if you want some alternate sizes which equates to roughly the same 18” wheel size of 30” you can fit any of the following: Alternate 18” Tire Options ... in the front and the rear. Still have questions? 285mm converted to inches is 11.22 inches wide. The maximum tire width is not ideal because the tire tread is wider than the inside rim bead. I'm going add some washers to the front stops, or add spacers. 33 x 12.50 ) it's for 15 inch rim. Tire Size Chart. eval(ez_write_tag([[728,90],'4wheeldriveguide_com-medrectangle-3','ezslot_3',129,'0','0']));When comparing a 33” tire to a 285 wide tire, you are essentially talking about two completely different measurements. So get familiar with your Stanley knife and cutter and do some trimming of those wheel arch/guards where they are making contact. The Bilstein B6 will raise the front by 35 mm and rear by 25 mm. ... 2019 ford ranger … When we refer traffic and it results in business sales as a result of it, we are compensated by these companies. Any rim you have mentioned will work for a 33 inch tire. Dodge Ram 1500 - Find out the correct alloy wheel fitment, PCD, offset and such specs as bolt pattern, thread size(THD), center bore(CB) for all model years of Dodge Ram 1500. 285/70/17: 33.0"x 11.5: 315/70/17: 34.4"x 12.4: 18-inch Wheel Conversion Chart. (Then double that) 16.83. I’m going to share with you everything I had to trim or remove in order to fit 33″ tires on a 4th Gen 4runner. 285/75/16 is usually the accepted metric equivalent size for 33’s. So what about the Raptor? For Tiger Woods, golf is secondary at this point, Gerard Depardieu charged with rape, sex assault in Paris, COVID pushes some with eating disorders to get help, 'The devil is already here': Calif. strain sparks concern, Official on Woods: He's 'very fortunate' to be alive, Poll: Partisan divide over vaccine acceptance grows, State tax changes could mean bigger refunds for some, Britney Spears defended by former child star, Obama, Mickelson wish Tiger well after crash, 'Sick to my stomach’: PGA player on Woods's car crash. This makes for excellent stability and cornering, however, it limits the downward travel of the wheels and places the CV joints under more stress when the vehicle is lifted too high.eval(ez_write_tag([[300,250],'4wheeldriveguide_com-leader-3','ezslot_18',142,'0','0'])); It’s not recommended to go higher than a 3-inch lift kit on an IFS vehicle, and if you do decide to go higher, you’ll need additional modifications such as diff drop kits, adjustable UCA (Upper Control Arms), LCA, and Stabilizer arms. Largest Tires on Stock Nissan Titan XD (W/WITHOUT A LIFT), Biggest Tires on Stock Ram 2500 (W/Without a Lift). I think my footprint is only 11.5” though. Meaning some are smaller than 33″ and some are larger, depending on the brand. Tire Size Calculator. Why Buy Tires Online? Your primary goal should be […], Big tire upgrades are one of the most popular upgrades done on almost all makes of pickups, so this article will clear up the most commonly asked question, what the biggest tire I can fit to my truck.Let’s find out what the maximum size tire you can fir to a Ram 2500 with and without […], link to Largest Tires on Stock Nissan Titan XD (W/WITHOUT A LIFT), link to Biggest Tires on Stock Ram 2500 (W/Without a Lift), Are 33-Inch Tires the same as 285’s (Metric Vs MM), How much lift to fit 33” Tires on a Ford Ranger, How much lift to fit 33” on a Jeep Wrangler, Click here for more info on fitting 33” to your truck. For the most part when it's expressed in inches (ex. 33/12.5-R17 tires are 0.32 inches (8.04 mm) larger in diameter than 285/70-R17 tires and the speedometer difference is 0.9% 285mm is the width. 34" Tire Diameter 385/35R24 = 34.6x15.2R24. Choose a model year to begin narrowing down the correct tire size Add the rim height 16" and you get 32.83" tall, and remember the width 11.22. Jim, I did mine with stock wheels, but maybe my Toyo 285/70R17s don’t have as wide of a footprint as your tires. A lot of people wonder if we can fit this size on a stock height and stock wheel set up. For those that have no idea what I mean, when you read a tire size such as 285/70R17, it breaks down like this: The program allows this site to link and advertise with Amazon.com. Is it easy to change the coolant of the car or it's better to take it to a shop? 285mm converted to inches is 11.22 inches wide. 33/12.5-R20 tires are 0.92 inches (23.28 mm) smaller in diameter than 295/60-R20 tires and the speedometer difference is 2.7% When you decrease backspacing, you gain more inside wheel clearance. Will the 285/75/16 throw out your speedo?eval(ez_write_tag([[728,90],'4wheeldriveguide_com-leader-2','ezslot_16',121,'0','0'])); When you upgrade from a stock tire to one with a taller aspect ratio (Side wall), increasing the wheel circumference, your speedo can be thrown out. Second gen SE's have 17" wheels, so while tire section width (285mm) is the same, the 33" tire aspect ratio (in this case 70%) and rim diameter (17") are different compared to the non SE models which would be 75% and 16". Im currently in the same situation and remember like it was yesterday when I put 33s on my jk. 285/75/16 is the metric equivalent of a 33″ tire, or 32.8″ to be precise. If you run a tire bigger than 35 inches in diameter, you are most in need of a 17-20 inch rim. You should first determine what the primary application for the upgrade is. This allows you to fit 3”, 4” and even higher with less hassles. An IFS front axle on the other hand is a more complex process and you are limited. It weighs 51.6 lbs, has a max load of 3750/3415 lbs, a maximum air pressure of 80 psi, a tread depth of 16/32" and should be used on a rim width of 7.5-9". Do most auto shops typically experience times when there are no cars to work on? . Whether you plan on slapping those new 33’’ tires on your original equipment wheels or you want to create your own 33 inch tire and rim package, selecting the right tire for your 4x4 light truck or SUV is easy. These numbers are referring to the older tire sizing system known as “Floatation” sizes. YES, 285 wide tires are the same as 33” tires although 285 is the tread width in millimeters and 33″ is the tire diameter. Unfortunately most 4WD’s in production these days are IFS suspensions. Tire Deals/Promos Readers Rides Contact. John Deere 5115M Transmission Indicator Warning Light and Fuel Gauge Not Working.. This article will cover what exactly is required to make the biggest 33-inch tires fit, as well as some of the most popular tire and suspension combinations on a Chevy Silverado 1500 that absolutely works. That’s a mouthful and a lot to digest at once so let’s break it down into a simple formula. They usually need some trimming, depending on the tire and vehicle. The 285/70R17 is almost a 33 inch tall tire and would need a lift or … Metric and Inch Tires Sizes. The increase in tire circumference means the actual speed will be higher the faster you travel. Sure, you can fit larger tires but the bigger you go, the more you’ll fight with clearance issues. YES, 285 wide tires are the same as 33” tires although 285 is the tread width in millimeters and 33″ is the tire diameter. Multiply that by 75%, you get 8.42". Look out for the inner guard pinch weld and inside of the fender flare. Tire Size Comparison. No abrasion in any wheel wells, no scuffing on the tires. Our tire experts often get questions about the sizes that are considered a 33", 35", 37" or 40" tire. Currently running LT285/65R18 with no issues. I'm planning on getting a pretty aggressive tire, i can run 285/75/16. My car has this weird rattling sound from the rear when i let go of the gas? 265/70R16 (30.6x10.4R16) Discoverer AT3 LT All Terrain. 285/75/16 is usually the accepted metric equivalent size for 33’s. We have mentioned quite a few variables to consider before dropping a load on expensive oversized tires. Bigger tires is the single most effective method of gaining improved ground clearance. Fender trimming goes hand in hand with backspacing/Wheel offset as well as how wide the tire is. Multiply that by 75%, you get 8.42". The CV angles are not compromised since they are always in line with the diff and axle. Is it purely for aesthetics or will you need maximum practicality, off road ability, while maintaining maximum articulation.eval(ez_write_tag([[728,90],'4wheeldriveguide_com-mobile-leaderboard-1','ezslot_20',124,'0','0'])); 4-Wheel drives and off-road driving techniques has been my passion for over 20 years. Trying to visualize how much difference a 1.5 inch wheel spacer would make at the edge of a 33 inch tire. Before you even consider fitting 33” tires on your IFS truck, you’ll need to have a minimum 2” lift kit installed. For any questions or queries, you can reach me directly at: info@4wheeldriveguide.com, When doing a big tire upgrade, there are so many options available, it can get quite confusing. Offset is measured in mm and generally refers to how your wheels sit inside the wheel wells. What is the difference/meaning of backspacing vs Offset? The larger rims reduce that profile while keeping the same overall tire diameter and the result is better and more predictable street handling. The minimum tire width 175 mm designates the safe tire width, 185mm and 195 mm are ideal tire widths and 205 mm is the maximum tire width. Click here for the full breakdown of fitting 33” tires to a Jeep Wrangler. Here we strive to provide the most accurate, up-to-date, information about the functionality, common faults and latest technology built into most 4 Wheel Drives. A 285/70/17 all terrain or mud terrain tire is often considered to be on the larger side of things when it comes to these rigs. So….. 213.75 x 2 sidewalls = 427.5mm (divided by 25.4 = 16.831″)eval(ez_write_tag([[336,280],'4wheeldriveguide_com-box-4','ezslot_2',116,'0','0'])); 16.831″ + 16″ wheel = 32.831″ approximate tire diameter. Depending on your truck, sometimes this isn’t enough, since you’ll still need to make additional modifications to prevent scrubbing at full lock. When lifting any IFS truck, the front suspension configuration determines the complexity of the upgrade. 285 = the width of the tread in mm There is a fine line between keeping the tires in the guards and preventing scrub on arches, UCA, Brake calipers, etc. Should you replace car coolant at recommended 30k miles? Well yes, it clears without any rubbing issues on-road. ... 33 Inch Tires 35 Inch Tires 37 Inch Tires 285/75R16 265/70R17 285/70R17 275/70R18 275/60R20. A stock JL comes with 31 inch tires that weight 32 Pounds. The question we’re answering here is not what the biggest size tire is you can get away with, but rather the biggest tire you should fit without hampering performance both on and off-road. Manufactures are more concerned about on road performance and safety so they produce IFS trucks which appeals to a larger market. While standard SAE tire sizes are easy to understand (a 35x12.50-16 tire runs 35 inches tall by 12.5 inches wide for a 16 inch wheel), many popular tires, particularly those under 35" tall, use harder to visualize metric dimensions (a 315/75R16 tire is 315 mm wide with a sidewall height that is 75% of the width for a 16 inch wheel). Two different 285’s can actually vary in true diameter. 285/75-R16 tires are 1.85 inches (47.06 mm) larger in diameter than 31/10.5-R15 tires and the speedometer difference is 5.7% Favorite Answer. Let’s see what that looks like in a formula form. This domain, 4WheelDriveGiude.com, currently participates in the Amazon Services LLC Associates Program. Compare the tire calculations with alternate tire sizes to find the right tire. Join Yahoo Answers and get 100 points today. These days we also have similar tire sizes in the metric tire sizing, which makes the decision on what size tire will fit your rig downright confusing. What about first installing a quick and cheap body lift? While this chart can't guarantee a … Phew!!! 33/12.5-R20 tires are 1.11 inches (28.22 mm) larger in diameter than 275/55-R20 tires and the speedometer difference is 3.4% In fact I am currently running 33” tires on my truck and they work beautifully! Tires . The below table will give you an indication of how the speedometer reading is affected from a 265/70/16 to a 33”.Speedometer reading20mph30mph40mph50mph60mph70mph80mph90mphActual Speed21.432.242.953.664.37585.896.5, Below are the actual differences between the stock 16” tire and the upgraded 285/75/16MeasurementStock Tire (265/70/17)Upgrade (285/75/16)DifferencesDiameter30.6”32.8” (833mm)+7.2%Width10.4”11.2” (285mm)+7.7%Sidewall7.3”8.4” (213mm)+15.1%Circumference96.1”103.1” (2619mm)+7.2%Revs/Mile659615 (382mm)-44. f you want to fit a larger 33” tire without a suspension lift, there is some modification needed. I give it a resounding YES! ... so to keep initial costs low, perhaps consider buying a used spare tire of the same size as your upgraded tires. Once removed, and a 20+ offset aftermarket wheel is fitted you should be able to get the 33” tires to fit comfortably.eval(ez_write_tag([[468,60],'4wheeldriveguide_com-leader-4','ezslot_19',122,'0','0'])); Click here for the full breakdown of fitting bigger wheels to a Ford Ranger. 75% of 285mm is the height. Tire Height Calculator. More Size Tools . I have at full lock a very slight tire rub on the sway bar. If I dump gorilla glue into my coolant will that fix my head gasket? Click here for more info on fitting 33” to your truckeval(ez_write_tag([[300,250],'4wheeldriveguide_com-leader-1','ezslot_13',136,'0','0'])); Wheel offset or backspacing is a factor that gets little consideration, and it can create complications if you’re not sure exactly how much brake caliper clearance is required. Fitting a slightly more negative offset rim will improve the backspacing clearance, however some minor wheel arch and body mount trim will still be necessary.