North Fontana is one of Fontana's most active areas for truck owners, with 72,000 residents near Sierra Ave and I-15 Freeway. North Fontana is home to the Auto Club Speedway, and the area's motorsports culture means truck owners here take their builds seriously. We specialize in LINE-X spray-on bed liners and protective coatings, along with a full range of truck accessories, including bed covers, side steps, running boards, toolboxes, contractor racks, and more. We proudly offer LINE-X and other top-name brands, all backed by manufacturer warranties. Our 10,000 sq. ft. facility at 9261 Bally Ct in Rancho Cucamonga is about 15 minutes from North Fontana — close enough for a same-day appointment on most quality drivetrain & differential service jobs.
Pricing for drivetrain & differential service in Fontana typically runs $250–$3,500 depending on your vehicle make, model, and selected options. We provide a free, no-obligation quote before any work begins.
The I-10/I-15 interchange in Fontana is one of the highest-volume freight nexuses in the United States, with commercial trucks comprising 18–22% of daily traffic. BNSF's San Bernardino intermodal facility, Amazon and Skechers distribution centers, and Kaiser Steel's industrial legacy mean Fontana's 92335 zip has one of the highest concentrations of work trucks in San Bernardino County — trucks that need bed protection from daily abuse, not occasional use.
Fontana averages 284 sunny days per year with July and August highs of 105–112°F and UV index 10–11. Extreme heat accelerates bed degradation; asphalt and concrete dust from Fontana's industrial zones compound surface abrasion. LINE-X outlasts factory paint and plastic liners under these conditions.
North Fontana's motorsports culture — anchored by Auto Club Speedway and the Sierra Ave corridor — means truck owners here take builds seriously. Whether you're running tools to a job site or gear to the track, Fontana residents choose LINE-X for durability that matches the way they use their trucks.
Empire Motorsports & LINE-X has been a trusted name in truck protection and accessories since 1992. As one of the first LINE-X spray-on bedliner franchises — and now the largest in California — we've built a reputation for quality, durability, and exceptional service over the past 30 years.
For drivetrain & differential service customers in Fontana, that means multiple spray-on bedliner options and top brand accessories — every install done on-site with manufacturer-backed warranties.
Typical range for Fontana area. Final price depends on your vehicle.
Drivetrain inspection and diagnosis
Differential disassembly and component check
New gears, bearings, or locker install
Backlash and pattern setup
Break-in oil and final test drive
As the largest LINE-X franchise in California, we're an authorized installer for the leading manufacturers. Every product is backed by manufacturer warranty.
Do I need to re-gear after installing larger tires?
Going up two or more tire sizes typically requires re-gearing to restore performance. We'll check your current ratio and recommend the right gear for your tire size and driving style. Our shop at 9261 Bally Ct, Rancho Cucamonga is about 9 miles from Fontana — most customers are in and out the same day.
What's the difference between a locker and a limited-slip?
A limited-slip transfers some power to the wheel with traction. A locker fully locks both wheels together for maximum traction. Lockers are stronger off-road; limited-slips are easier on pavement.
How long does a gear change take?
A full re-gear of front and rear axles takes a full day. We do the work, set up the gear pattern, and put break-in oil in. You drive carefully for the first 500 miles, then return for an oil change.
We serve these nearby locations for drivetrain & differential service:
“Floyd re-geared my Jeep from 3.73s to 4.88s after going to 37-inch tires. The pattern setup was spot on — quiet at highway speed and no backlash. He walked me through the break-in procedure before I left. These guys know diffs.”
“Had an ARB Air Locker installed in the rear axle of my 4Runner. Jake did the work and tested the locker at pressure before I drove off. It engages and disengages perfectly. Excellent technical work.”
“Empire diagnosed a clunk in my driveshaft as a worn slip yoke and had it sorted same day. Fair pricing and they caught the issue instead of upselling me on a full drivetrain rebuild. Honest shop.”
Call or text (909) 980-8922 for a fast, personalized quote — or complete the form on our main site and we'll get back to you shortly.
Also serving this area: Empire Motorsports
9261 Bally Ct, Rancho Cucamonga, CA 91730 · Mon-Fri 7:30am - 5:00pm
