Our Story
Built From Years of Drifting, Building and Breaking Cars
WeldedDiff.com started because I’m a drifter and enjoy TIG welding.
I’m Adam Buchanan, and I’ve been drifting on track since 2018, although my interest in making rear-wheel-drive cars go sideways started long before that. I’m based in Northern Michigan, where I’ve spent years driving, building and continually developing my Nissan 350Z drift car.
Like a lot of grassroots drift cars, mine has never really been “finished.” It has evolved as I’ve become a better driver, learned what works, broken things and figured out what needed to change next. The current car is the result of more than a decade of work and has grown into a turbocharged LS powered 350Z making well over 500 lb-ft at the wheels. You can learn more about my drifting over at adamdrifts.com.
I’ve been welding my own differentials and the diffs of my friends for years before starting a business doing it. It’s that hands-on experience is ultimately what led to the creation of WeldedDiff.com.
A Very Simple Part With a Surprisingly Complicated Process
Welded differentials have been part of grassroots drifting for a long time. The concept is simple: permanently lock the differential so both rear wheels rotate together.
Actually getting one into a car can be a lot less simple, depending on your resources.
You need the right differential or carrier. You need to know what fits your particular chassis, transmission and differential configuration. Then the carrier needs to be removed, disassembled, cleaned, properly prepared and welded. Afterward, everything has to go back together correctly.
For someone just trying to get their drift car ready for the next event, that can turn into a lot of time spent tracking down parts and figuring out details that have very little to do with actually driving the car.
I saw an opportunity to make that process easier.
The Idea Behind WeldedDiff.com
The idea is to take something that has traditionally been treated as a one-off fabrication job and turn it into a more standardized motorsports product.
That means focusing on things like known vehicle fitment, consistent preparation, professional TIG welding, clear product information, technical support and a straightforward core exchange program.
Instead of wondering whether a random used differential will fit your car or trying to find someone locally to weld your carrier, WeldedDiff.com is built around specific drift platforms and specific differential configurations.
The goal is simple:
Make getting a properly welded differential easier to obtain.
Built by a Drifter
I’ve spent years developing my own drift car, testing changes on track and dealing with the inevitable repairs that come with motorsports. I’ve driven grassroots events, tandem sessions and larger events like GRIDLIFE Midwest, and I’ve learned plenty through both successful weekends and the occasional trip into a wall.
That experience influences how I run this business.
Fitment information should be clear.
Technical questions should get useful answers.
Products should be prepared consistently.
Packaging should be appropriate for heavy automotive parts.
The core exchange process should make sense.
And if something goes wrong, there should be an actual person on the other end who understands what the customer is working on.
More Than a Side Project
My background outside the car also plays a role in WeldedDiff.com.
I spend a lot of my professional life working with websites, e-commerce, marketing and businesses that need to communicate complicated products clearly. I’ve also spent years developing automotive product ideas, researching fitment and figuring out how to turn specialized parts into products that can be sold and supported consistently.
WeldedDiff.com brings those worlds together.
It combines the technical side of building and maintaining drift cars with the product development, e-commerce and customer experience side of running a real business.
I want the website itself to reflect that.
Why Welded Differentials?
There are plenty of great limited-slip differentials available, and for some drivers they are absolutely the right choice.
But grassroots drifting has always had a strong practical side.
A welded differential is simple. It is predictable. It keeps both rear wheels locked together and it can accomplish one of the most important drivetrain modifications on a drift car without consuming a huge portion of the build budget. Even in the highest levels of competition level drifting, where quick change differentials are standard, most of them use “spools”. Spools are a solid billet that replaces the carrier and keeps both wheels locked in sync, just like a welded diff does.
That's why I believe there is room for a company focused specifically on doing welded differentials well.
We don’t treat them as an afterthought. We aren’t treating every differential as though it is the same. We aren’t pretending that something has to be expensive or complicated to be effective or reliable.
Continuing the Build
WeldedDiff.com is starting with the platforms I know are heavily represented in grassroots drifting, beginning with cars like the Nissan 350Z and expanding as I develop and verify additional applications.
The product line will grow, but I don't want to add a vehicle simply because I can list it on a website. I want to understand the differential configurations, know what interchanges, establish the correct process and be able to support the people buying it.
That will take time, and that's intentional.
The objective is to build WeldedDiff.com into a dependable source for welded differential carriers, technical information and support for the drift community.
Follow My Drifting
WeldedDiff.com isn't my first drift-related website.
I’ve documented my own car, events, build changes, sponsors and years of drifting at adamdrifts.com. It has become an archive of the project and a pretty good record of how much a supposedly simple drift-car build can evolve over time.
And if you're here because you're building your own drift car, hopefully WeldedDiff.com can make at least one part of that build a little easier.