Call Today
(916) 922-5297
5431 Stationers Way, Suite A
Sacramento, CA
Store Hours
Mon - Friday: 8:00 AM - 5:00 PM | Closed 12:00pm - 1:00pm
Get Started Now
Get Started Now

Differential Repair, Ring & Pinion Installs, and Gear Ratio Changes

REAR-ENDS.
DONE. RIGHT.
THE FIRST TIME

Differential repair, ring and pinion installs, gear ratio changes, and custom axles for daily drivers, trucks, off-road rigs, classics, and performance builds. Serving Sacramento and Northern California for 30+ years. We diagnose first, walk you through your options, and set it up right so you only do it once.

The Rear-End Experts

Hear a whine, clunk, or vibration from the back of your vehicle?

CALL: (916) 922-5297

What We Do

Rear-Ends
Done Right

We don’t do everything. We do drivetrains. Differentials, gears, and axles are all we touch, which is exactly why we’re good at them. More than 30 years of hands-on setups means your power gets to the ground and stays there.
Rebuild-Demo

Differential Rebuild

Once we diagnose your differential, we fix it with whatever it actually needs, from a basic bearing service to a full gut and replace. Setup is where most rear-ends fail, so that's where we slow down and get it right.
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Positraction-Demo

Positraction & Locker Upgrades

Turn one spinning wheel into two that work. A positraction or locker puts your power down where you've got traction, on the street, the trail, or the line.
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Rebuild-Demo

Ring & Pinion Installs

A gear-ratio change is one of the most effective ways to tune how your truck or car drives. We mount, shim, and pattern-check every set, then stand behind the workmanship.
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WHO WE ARE

Not the cheapest.
The last one you’ll need.

Jaw’s Gear & Axle is one of the leading suppliers of differential parts in the country, and a full-service shop. Our Sacramento service center opened in 2003, backed by more than 30 years of drivetrain experience. From bearings to custom axles, ring and pinion sets to shims, we ship nationwide and install in-house. 

We’re not about the cheapest part. You get what you pay for in quality and workmanship. Every tech is trained in our own shop with real bench time, so you’re never stuck talking to a call center. Found a better deal on qualifying parts? We’ll match it.

SINCE 2003

Sacramento service center

NATIONWIDE

Parts shipped in 3 days

SAME-DAY

Service by appointment

PRICE MATCH

On qualifying parts

Trusted across Northern California since 2003.

Why Drivers Across Northern California Choose Jaw’s

From San Francisco to Tahoe and Redding to Fresno, drivers bring us the jobs other shops send away. Here’s why.

Rear-Ends Are Our Specialty

Rear-ends are all we do. That focus means we catch the things general shops miss and get the setup right the first time.

Honest, Upfront Options

We diagnose before we quote, tell you what we found in plain language, and lay out your choices, from a basic fix to a full rebuild. No surprises on the invoice.

Quality Parts, Precision Setups

We run quality components and dial in every setup by hand. The result is a quiet, reliable rear-end that holds up to how you actually drive.

Warranty & Guarantee

Backed by Experience
You Can Trust

Every job comes with straight talk, real shop experience, and a guarantee on the work. You drive away knowing the rear-end was set up right.

24 Month/

24,000-Mile
Nationwide Warranty

1,688+

CARS REPAIRED
Trusted. Tested. Proven.

Same-Day Service Available

Many jobs go out the same day, so you're not stuck without your vehicle.

Diagnose-First Approach

We find the real problem before you spend a dime on parts.

Built for How You Drive

Daily, off-road, track, or show, the setup matches the use.

We Make it Easy

Our Simple Process

A straightforward process, from your first call to driving home with a rear-end that’s done right.

Step 1: Consultation

Tell us the symptoms. Whine, clunk, vibration, or a performance goal: call or text and tell us what’s going on.

Step 2: Diagnosis

We inspect the rear-end and pinpoint the real cause, not just the symptom.

Step 3: Clear Communication

We explain what we found in plain language and give you clear options and pricing.

Step 4: Precision Work

We do the rebuild or setup with quality parts and send you out with power that gets to the ground.

Custom Calculators

Custom Calculators

GEAR RATIO CALCULATOR

SPEED & RPM

TIRE SIZE CHANGE

RPM BY TRANSMISSION RATIO

FREE TOOLS

GEAR RATIO CALCULATOR

SPEED & RPM

TIRE SIZE CHANGE

RPM BY TRANSMISSION RATIO

FREE TOOLS

25-differential-ring-gear-closeup

Gear Ratio Calculator

Find the right ring & pinion ratio for your setup.
Calculate
RPM-Image

Speed / RPM Calculator

See how a regear changes your cruising RPM.
Calculate
Tire-Size

Tire Size Change Calculator

New tires throw off your effective ratio. See the impact before you buy.
Calculate

why choose us

4.5/5.0
88+ Reviews on Google

Real Feedback. Real Results .

bg-testi
Andy Deck
Toyota Tacoma, 5.29 Regear
Took my Tacoma to Jaw's for a 5.29 regear and they knocked it out fast. Immediately noticed a difference and honestly wish I'd done it sooner. Even on stock wheels and tires, the Tacoma still benefits from a regear. Knowledgeable crew, no BS, just solid work. Highly recommend.
Carl Espy
99 Toyota Tacoma
Jeff and Omar were honest and upfront, with great options for my over-the-top rusty assembly. They troubleshot their way to getting me back on the road. A bad differential is never fun, but they took their service above and beyond. Real knowledge and professionalism.
Alfredo Luna
Differential Rebuild
Went in for a basic rebuild and after inspection there were more issues with the differential. Pricing was reasonable and they still gave me 10% off labor. Feels way better now, no more noises or clunking. Thank you.
Justin Brown
This place is great. They stand by their work, have excellent customer service and quick turnaround. Would highly recommend them.
Tiffany Weber
Quick to accept the truck, quick to fix it. Great price.

Direct

CONTACT US ABOUT YOUR BUILD.

Got a question or need a repair? Call us, send a message, or stop by the shop. Our builders will tell you what’s going on and lay out your options. No sales script.
(916)-922-5297
Suite A, Sacramento, CA
Mon to Fri, 8:00 AM to 5:00 PM (closed 12:00 to 1:00 PM)