Free Priority Shipping On US Orders!
The Best Disc Brake Conversion Kits
At The Best Prices!

FAQs

Some kits it matters and others it doesn’t. Please contact us if you have specific questions.
Easy! If there are 10 bolts on the differential cover, you have a Dana. If there are 14, it’s a 14 Bolt. If you have 12 bolts, you have a Sterling 10.25.
When looking at the axle from the fender area, there are lug nuts that hold the wheel on. On a full float axle, there’s an additional series of bolts in the middle of the wheel that hold the axle shaft in.
We certainly hope this never happens, but if it does, please contact us immediately. We’ll make it right.
If you have any questions about a part you plan to order, please contact us. We’re happy to help. We accept returns of brand new, unused, uninstalled, rust free, unpainted items within 30 days of purchase. The product must be in original packaging and be accompanied by all the original paperwork. Fill out a return request here. Please be advised there may be a return shipping fee.
We keep a large inventory of parts in stock and ship the same day or next day, depending on when the order is placed. We ship Priority Mail, so you should have it in 2-3 days. Don’t worry if you only get one box before the other. Sometimes one box will get delayed a day by USPS, but we always ship both out the same day and tracking numbers are sent when they ship.
If you would like to return or exchange a product, please contact us here. If, for any reason, you are unhappy with your purchase, return the unused, rust free, and unpainted kit to us for a refund. There will be a $30 fee for shipping and handling.
If the box is damaged, please check the product immediately. We pack our boxes in such a way that most of the time the contents are fine even if the box is destroyed. Please contact us to discuss if damage occurs during shipping.
Yes. There is a standard $150 fee for shipping to Canada. Shipping to all other countries includes a $230 fee.
Please note: No taxes or custom duties are added at the time of the purchase. You may be charged taxes, duty, and handling fees by authorities in your country at the time of delivery.
We offer Priority Mail, so packages usually arrive in 2-3 days for domestic addresses but international orders will take longer. Due to the weight of these kits, it is not practical to ship next day air.
We ship USPS Priority Mail. For orders in the US, shipping is free.
Yes. We will send you tracking information for your shipment.
American Express, Discover, MasterCard, Visa, and PayPal.
Your information is encrypted and transmitted to us in a secure way. You can verify this by looking for a closed lock icon at the bottom of your web browser, or looking for “https” at the beginning of the address of the web page. We never record or even see your credit card information. If you opt to pay with PayPal, you receive their security protections.
Contact us right away at 423-737-0265 or info@lugnut4x4.com. Canceled orders will have an automatic 10% restocking fee and could be subject to additional fees depending on how far along the order is.
No. You may checkout as a guest.
Our brackets are unconditionally guaranteed for life. Even if your vehicle is in a wreck, we will replace the bracket for free. All other parts have a 30 day warranty. If you need a replacement bracket, just contact us to discuss.
The short answer is they don’t. The long answer? It’s actually against federal law to void a warranty for use of an aftermarket part. The Magnuson-Moss warranty act, enacted in 1975, makes it illegal for auto manufacturers to void a warranty simply because the owner of the vehicle adds an aftermarket product to a vehicle. The law states that unless the manufacturer can prove the problem was caused by an aftermarket part, they have to repair the vehicle.
Call us at 423-737-0265! We’re happy to help you find the exact part you need.
Give us a call – 423-737-0265. All we ask is you don’t call after 9pm EST.
Monday through Friday, we’ll answer the phone pretty much any time. All we ask is you don’t call after 9pm EST. You can ask us questions 24/7 here, and you’ll hear back from us within 24 hours.
All orders in the lower 48 states are eligible for free shipping. Sign up for our newsletter for additional offers and promotions.
At this time, only for orders that ship to Tennessee.
There are many reasons, but the biggest reason is better braking. The main reason you have better braking with disc brakes is because they don’t require maintenance like drum brakes do. There’s no springs to break and no adjusters to rust up. The main problems with drum brakes is that as the drum wears the shoes don’t fit as well. Even if you put new hardware and shoes in them, they still don’t work that great and the first time you get in the mud they can get clogged up. None of those problems exist with disc brakes. By eliminating all of these problems, the effect is much better and more reliable braking. I’ve had many people tell me the overall braking performance is greatly improved.
With my standard disc brake kit there is no parking brake. This kit was designed for off-road use. If you want a parking brake, I do offer special calipers for $200 more that includes all the hardware to connect your existing emergency brake cable to. It is from a 1976 Cadillac Eldorado and is the same caliper as the rest of my kits except it has a lever on the side that allows you to hook up an parking brake cable that manually moves the piston in to hold the vehicle in place. If your state requires an inspection with functional parking brake, you may want this.
No, my kit is balanced, meaning that it takes the same amount of fluid to actuate the caliper as it would the wheel cylinder in drum brakes. It works best if nothing else is changed.
I offer two choices for regular calipers: the JB6 (standard) and JB7 (heavy duty). The difference is the bore size and amount of fluid required to activate it. The JB6 is recommended for most people. The piston is 2 15/16″ diameter or 2.95″. The JB7 is 3 5/32″ or 3.16″. The bigger piston can clamp harder but also requires more fluid. My kit with the JB6 caliper is designed to work well with your factory master cylinder. If you use the JB7 caliper, it may require you to change to at least a 1″ bore master cylinder. Most 3/4 ton and 1 ton trucks will not have a problem with this.
It works with most, depending on backspacing. It will work with all 15″ rims with 3″ or less backspacing. It works with most that have 3.5″ or less. It will not work with most that have 4″ or more. Steel wheels have more clearance than aluminum. I have seen people grind on the calipers for a little more clearance without a problem. All 16″ and bigger wheels will clear except dually wheels.
Yes, I can do custom kits. If you want a kit but already have some parts, we will just send what you need. Just choose the desired options on the product page.
If, for any reason, you’re unhappy with your purchase, return the unused, rust free, and unpainted kit to me for a refund minus a $30 charge for shipping and handling.
No, I don’t have detailed instructions. This is really simple to install if you’re familiar with brakes and how the brake system works. Only word of advice is that most of my kits require the rotor to be on the backside of the hub.
Converting to disc brakes does not change the width of the axle in any noticeable way. Most of the conversions will make zero change. A few of the kits will change the width by the thickness of drum, which is generally less than 1/4″.
No, there’s no need to change the wheel studs. Your drum is about 1/8″ thick and the rotor is about 1/4″ thick. The end result is your factory studs will be 1/8″ shorter, which shouldn’t be a problem. There is one exception, and I include new studs with that kit.