(approx) 30 Minutes
Simple installation for anyone.
- How to Install Mammoth Wheels on your Jeep Wrangler
I'm Ryan from ExtremeTerrain.com and this is my review of the Mammoth Boulder Wheel and Tire Kit, fitting all 1987 to 2016 Wranglers. This kit is available in both 16 and 17 inch wheels and in black, silver and charcoal finishes. Wheel and tire kits are for those of you looking to upgrade the wheels and tires on your JK and you want to do them at the same time. Generally going to a larger tire will mean a new wheel because you'll need a different width, diameter or backspacing, so doing them at the same time in a wheel and tire kit makes things really easy. So if you're looking to upgrade to larger wheels and tires on your Jeep, or if you're just looking to replace the worn out rubber you already have, I definitely recommend taking a look at the Mammoth wheel and tire kits. What I really like about the wheel and tire kits is that everything comes to you mounted, balanced and ready to bolt onto your Jeep all without you having to take a trip to the tire store. So let's talk about this wheel. The Mammoth Boulder is a five spoke aluminum wheel. It looks really nice and it's available in a couple of different sizes. You can get this in both 16 X 8 or 17 X 9 inch, depending on what size tires you want to run on your Jeep. And the wheel is available in three different finishes. You can get black, charcoal or silver, so there's a finish that will look great with your Jeep no matter what color it is.Running a slightly smaller wheel has some benefits, especially for you guys who take your Jeep off road. The smaller 16 inch wheel will have more sidewall than the larger 17 inch, which is great for gripping rocks and different obstacles off road, and the narrower 8 inch wheel will give you natural sidewall pressure so when you air down to a lower PSI when off road, you don't risk losing a beat. But if you like the look of the 17 inch wheel, those are definitely available as well. Maybe more important than the diameter and the width of the wheel is the backspacing, especially for a Jeep. When you are running a larger and wider wheel and tire, there's always the chance that the tire is going to contact either the frame or the control arm when you turn the steering wheel from lock to lock. Having a smaller amount of backspacing will push the wheel and tire package away from the center line of the Jeep giving you the clearance that you need. These Boulder wheels have four and a half inches of backspacing. That gives you enough clearance to run most normal size tires that you'd want to put on your JK. Aside from dimensions, Mammoth made these wheels hub centric, which means that the weight of the vehicle is supported by the center hub and not by the lugs and they're a five by five lug pattern so they'll bolt directly onto your Jeep without the need for adapters. Once you decide what wheel you like, you have a few different brand, styles and size tires to choose from. After you pick that package, you have a few more decisions to make. You will decide whether you want four or a full set of five wheels and tires including the spare, whether you want TPMS sensors in the wheels and tires which will retain all of the factory TPMS system operation, and you'll decide whether you want the white lettering in the tires in or out. No matter how you decide to customize your kit, the tires will be filled with nitrogen which gives you more consistent tire pressure reading regardless of temperature and doesn't bleed through the rubber as much which means you won't have to refill them as often. And the best part about the wheel and tire kits is that they're mounted and balanced for free. So they get to your house, you pull them out of the box and bolt them on the Jeep, all saving you a trip to the mount and balance shop. Because these ship completely assembled, installation could not be any easier. The first thing you'll do is break loose your lug nuts, then jack up the Jeep making sure that you support it with a jack stand for safety. After that, you can remove the lug nuts and get the old wheels and tires off and put the new ones in place. You'll want to use a torque wrench when tightening the new lug nuts and tighten them to factory torque spec to make sure that you don't stretch the threads on the lugs and causing damage. The whole installation should take about an hour and you won't need any specialty tools, just a jack, a jack stand and the proper size socket wrench.So, if you're looking for a new set of wheels for your Jeep, I definitely recommend taking a look at the Mammoth Boulder wheel. They're a really strong, good looking wheel that come in a variety of sizes and finishes, and if you're also looking for new tires, a wheel and tire package is definitely the way to go. You might be able to get tires from here and wheels from here and take them all to a mount and balance shop and save a few dollars, but for the convenience and the customization of a wheel and tire kit, I think you get a ton of value for the price you pay. So that's my review of the Mammoth Boulder Wheel and Tire Kit, fitting all 1987 to 2016 Wranglers that you can find right here at ExtremeTerrain.com.
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Features, Description, Reviews, Q&A, Specs & Installation
Mounting & Balancing ExtremeTerrain offers professional mounting and balancing on all wheels and tires when purchased together on the same order. This will allow you to swap out your old wheels for your new set when they arrive.
What is TPMS?The Tire Pressure Monitoring System (TPMS for short) is a factory installed safety feature on all 2007 and newer Jeep Wranglers that alerts you when your tire pressure drops to an unsafe limit.
How do I keep my TPMS feature?Aftermarket wheels do not come with TPMS sensors. However, if you select 'Add TPMS Sensor’ and your specific year range from the options listed above, we'll install the TPMS Sensors in your new wheels!
For more Information, check out TPMS Sensor Kits in detail.
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
October 27, 2019
Good packaging , when I open the box and notice the wheels actually look better than the picture , for less than $500 , really happy with that .Helpful (1)
June 20, 2019
Cant wait to put them on my Jeep.. They are beautious!!Helpful (2)
April 09, 2019
Love these wheels. They look a million times better than the stock wheels. Couldn’t be happier with them. I got them when they were on sale for a great price too!Helpful (2)
April 06, 2019
The color looks a lot better in person and they match my Jeep extremely well.Helpful (1)
October 22, 2018
New Wheels, New Feel
Bought the Wrangler with after market wheels, Plastic Caps for centers, made a rattle on bumps that made me grit my teeth. New wheels look great and I am not gritting my theeth on Bumpy roads. Should have purchased these Mammoth Wheels sooner.Helpful (5)
October 22, 2018
Great wheels for the budget minded
Received the wheels the next day. Installed the following day. Great wheels on my black 2012 JK. No problems and the Goodyear Duratacs look awesome...Helpful (5)
August 18, 2018
Wheels look great, fit fine and allow me to put wider tires on my JK.Helpful (7)
May 04, 2018
Shipped quick! Light wheels and they look great with some flat black lugs!Helpful (6)
April 25, 2018
I had these wheels built as part of a tire/TPMS sensor?wheel package. My 2010 JK 2 door looks fantastic with these wheels. Great fit and finish. Extreme Terrain did a fantastic job of building these wheels/tires. The TPMS sensors worked right away. Everything was uber high quality. Love the look and finish. I'd highly recommend these.Helpful (5)
April 10, 2018
rear tire mount
just as a FYI you can not use the rear tire mount for your High Lift Jack on these tires. The center hole is to smallHelpful (4)
the rims on my 2017 jeep wrangler are 16 x7 if i change rims to 16x8 will i need new tires
You can visit the tire manufacturer's website to check what wheel size is appropriate for the tires you currently have.
Can I use my OEM lug nuts on these wheels?
The wheels can be used with the OEM lug nuts on the JK Wranglers.
Would these fit a stock 2013 Jeep Wrangler Sport without any lifts or alterations. What is the biggest size tire without needing a lift or wheel spacers?
Hello, this wheel and tire setup shouldn't need any lift or wheel spacers, anything larger then this then we would advise at least a Leveling Kit or a larger lift depending on how large of a tire you would plan on going with.
Can I keep my 1.5” spacers installed if I use these wheels?
That will depend on your exact application especially if you are including things like modifications to body and suspension. Feel free to give our customer service team a shout to discuss the comparability with your application.
I have a 2017 JK with Terra Flex level kit. what is the widest tire I can fit on this rim 16x8?
Thank you for your question! You would be able to fit up to a 12.50 inch wide tire on this wheel. I would not recommend exceeding 33" of height for the lift that you have.
Unfortunately, your factory center caps will not work with the Mammoth Boulder Wheels.
Hello! The backspacing on this wheel is 4.5" and the offset is 0"!
Hello, I would highly recommend a re-gear to help keep the drive-ability as close to stock as possible. The ratio you will want to go with does have a few variable though, such as transmission type and driver characteristics. Feel free to give us a call so we can help you get exactly what you need.
Hello, It is recommended to upgrade the stock tire carrier so you don't see any damage occur to the tailgate. A 2.5 inch lift would fit the 35's no problem.
A 315/75-16 is almost a 35 inch tire. To fit a 315/75-16 tire on your Jeep Wrangler Unlimited you would need 3.5 inches of lift.
(approx) 30 Minutes
Simple installation for anyone.
What's in the Box
|Backspacing:||4.5" (114mm)||Offset:||0mm (0")|
|Load Capacity:||1521 lbs (690 kg)||Bolt Pattern:||5x5"|
|Manufacturer:||BF Goodrich||Style:||Mud-Terrain T/A KM2|
|Size:||LT315/75R16 / 35 in||Tread Type:||Mud Terrain|
|Sidewall Color:||Optional Black or White||Max Load:||3195 lbs|
|Weight:||66.1 lbs||Tread Depth in 32nds:||20|