(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
December 18, 2019
2015 Wrangler JK 16" x 8" wheels with 265/70/16 Cooper AT3 These Boulder wheels in satin black are just super sharp. Not too much, not too little. They made a huge difference on my Jeep. I'll up grade the tires to 33's later, but even these 31's have a great look to them mow.Helpful (2)
October 01, 2019
Their mammoth alright
If your looking for a wheel that will look awesome on your Jeep this is definitely the one. For the price you can’t beat it. Definitely would highly recommend them.Helpful (2)
June 24, 2019
Wheels look “sick”
Since putting on the 16” wheel with 315 Nitto Trail grapplers I get lots of good comments. Recently ran Drummond Island, MI and the combination tire to wheel performed fantastically.Helpful (2)
June 06, 2019
Great wheels at a great price. Fast shipping too! They look fantastic on my 2015 Jeep JK 2 Door.Helpful (3)
February 28, 2019
Excellent wheels. I’ve bought the “big brand names” in the past and these Mammoth’s live up to any other. Plus you cannot beat the price, all 4 under 500. It’s like a bogo. They look great on too!! As long as I have my Jeep these wheels will be on it.Helpful (2)
October 02, 2018
Sharp looking wheel.
What can I say it's a sharp looking back wheel. I'm completely satisfied!Helpful (5)
September 27, 2018
What an upgrade to the original sport wheels! I went with 16x8 cuz I like a taller sidewall and the lower cost allowed me to buy all 5. Paired them with 285/75 16 ridge grapplers! Completely satisfiedHelpful (3)
August 20, 2018
They look great on my Jeep and I’m happy with my experienceHelpful (3)
March 25, 2018
Installed Mammoth Boulder Wheels
Just installed a set of the Mammoth Boulder 16x8 black wheels. I was concerned about how much offset and they might be hanging out far behind the stock fender. I mounted the wheels on a set of BFGoodrich 295/75r16 KO2 tires. I was amazed how they look compared to the stock wheels. I reviewed a lot of wheels and these are the best at a great price. I love them.Helpful (5)
February 21, 2018
Mammoth Boulder 16x8 black wheela
Very nice set of wheels for the price. They look great on my granite JK, I get lots of compliments wherever I go!Helpful (5)
Where are these wheels made?
The Mammoth Boulder Black Wheels are made in China.
Can these go with 255 75R 17 tires on my 18 jk
I have 265/70r17 tires. What size rim do I need a 16X8 or 17x9?
We recommend a 17x8 for that tire size, 17x9 would be a bit too large. 16x8 is not appropriate for that tire size.
I have 285 75 R16 currently on my Jeep with no lift (yet). Will these work?
These will work on your jeep yes.
You do not list wheel offset in your wheels section, like Quadratec does. This makes it hard to find a wheel!!!
Offset and backspace for the Mammoth Boulder Black Wheel and all other wheels we offer will be listed under the tech specs tab. The 16x8" Mammoth Boulder Black Wheel has a 0mm offset, and the 17x9" version has a -6mm offset.
Hello, yes, these will fit over your 2012 JKU standard brakes without spacers.
Hello, the Mammoth Boulder Black Wheel - 16x8 Wheel - and Mudclaw Radial 285/75- 16 (07-17 Wrangler JK) should fit fine stock bumpers and fenders, however, since that is close to a 33 inch size, a at least a leveling kit would be advised so you make sure that the tire does not rub at full suspension flex, you can kit this Mammoth Leveling Kit (07-17 Wrangler JK) http://www.extremeterrain.com/mammoth-leveling-kit-jk-j101068.html
The Mammoth Boulder Black Wheel - 16x8 Wheel - and Mickey Thompson Baja MTZ 315/75-16 (07-17 Wrangler JK) would require at least 2.5in of lift. A great lift kit to pair with these tires would be the JKS JSPEC 2.5 IN. LIFT KIT (07-17 WRANGLER JK 4-DOOR); Item #J103257, which can be found here: http://www.extremeterrain.com/jks-jspec-25-lift-jku-102K.html.
The Mammoth Boulder Black Wheel - 16x8 Wheel - and Mudclaw Radial 285/75- 16 (07-17 Wrangler JK) would work best with at least 1.25in lift. A really good lift to pair this with would be the OLD MAN EMU 2 IN. HEAVY LOAD LIFT KIT W/ SHOCKS (07-17 WRANGLER JK 2-DOOR); Item #J101472, which can be found here: http://www.extremeterrain.com/arb-ome-2-heavy-kit-omejk2dhks.html.
You can use your stock lug nuts with these!
Short answer, yes. Though you should not reuse them. Sensors go bad and if you purchase the sensors with the kit, it comes installed already!
(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|