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Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5:30pm Friday 8am - 4pm

Driveshaft Specialist

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United States
San Antonio, TX
Driveshaft Specialist

Independently owned and operated since 1955.
(1)

08/19/2026

Identifying the right fl**ge for your vehicle doesn't have to be a guessing game.Let the experts at Driveshaft Specialist guide you to the exact part you need.

08/13/2026

Built for the Boulders. Proven in WE-ROCK.When you're wedged between vertical rock walls and bouncing on the rev limiter, a broken driveshaft means game over. At Driveshaft Specialist, we engineer ultra-rugged rock crawling driveshafts built to withstand the punishing torque and extreme articulation of WE-ROCK competition. Get competition-grade strength with zero compromise.

Maximum Articulation: Designed for extreme suspension travel without binding or splitting.

08/12/2026

Classic Style. Modern Reliability. Your classic car was built to turn heads, not break down on the side of the road. At Driveshaft Specialist, we build and restore vintage driveshafts to eliminate highway vibrations and handle modern horsepower. Get the perfect fit for your restoration.

Vibration-Free Cruising: High-speed balancing brings modern, smooth drivability to vintage rides.

08/11/2026

Built for the Launch. Balanced for the Win.When you're dropping the clutch or flashing the converter, you can't afford a weak link. At Driveshaft Specialist, we build ultra-durable, high-speed balanced drag racing driveshafts engineered to handle massive torque and extreme RPMs. Get track-ready strength with zero vibration.

Maximum Torque Handling: Engineered for high-horsepower drag cars, brackets, and pro-mods.

08/10/2026

Driveshaft Specialist in San Antonio, TX is your premier destination for high-quality, high-speed balanced driveshafts. Serving the automotive community with unrivaled drivetrain craftsmanship, we specialize in custom driveshaft manufacturing for domestic and import vehicles, trucks, classics, muscle cars, and drag racers. Whether you need a replacement or expert technical advice, we offer a fast 48-hour turnaround time, same-day shipping on stocked items, and unmatched industry expertise. Stop by our McCullough Ave shop or contact us today!

08/06/2026

Why choose a specialist over a general mechanic?

When your vehicle has a complex driveline vibration, you don't want a general mechanic guessing at the fix. You want a master of the craft.

At Driveshaft Specialist, we don't do brakes, tune-ups, or inspections. We do driveshafts only.

By focusing 100% of our energy on a single component, we can offer:

Unmatched diagnostic accuracy for stubborn vehicle shakes.

Ultra-fast 48-hour custom builds.

Precision high-speed electronic balancing that general shops can't replicate.

Don't settle for general auto repair when it comes to your drivetrain. Trust the team that lives and breathes driveshafts every single day.
Visit us at Driveshaft Specialist to experience true specialization.

08/05/2026

To get the right driveshaft part, you must measure your universal joints (U-joints) using a caliper rather than a tape measure. Precision is vital because common U-joint sizes differ by mere fractions of an inch. Getting these dimensions right prevents high-speed vehicle vibrations and premature component failure.

Step 1: Clean and Identify the Snap Ring Style

Before pulling out your tools, wipe away all grease, rust, and dirt from the yoke and the U-joint. Next, look closely at how the bearing caps are secured.

Outside Lock (External Snap Rings): The snap rings sit in grooves on the outer edges of the yoke ears or rest on top of the caps. The bearing caps themselves have smooth outer walls.

Inside Lock (Internal Snap Rings): The snap rings sit in machined grooves cut directly into the walls of the bearing caps or inside the yoke ears.

Step 2: Take Your Measurements

Do not measure the center cross/trunnion itself. Instead, fully compress the bearing caps onto the joint using a vice or C-clamp to get an accurate reading.

Measure Cap Diameter: Use your caliper to measure the exact outside diameter of the bearing cap. Measure adjacent caps to check if they match.

Measure Outside Lock Width: If you have external snap rings, measure the total overall width from the flat outside face of one cap to the flat outside face of the opposite cap.

Measure Inside Lock Width: If you have internal snap rings, measure the distance from the outer edge of one snap ring groove to the outer edge of the opposite groove. Do not include the full height of the cap tips.

Step 3: Match Your Data to a Standard Series

Once you have your decimal measurements, you can identify your standard drivetrain series.

08/04/2026

This '70 Cuda came into the shop suffering from incorrect driveline angles and a driveshaft that was too short. We corrected the geometry and built a custom-length replacement to handle the power safely. It was an absolute pleasure working on this piece of American muscle!

07/30/2026

Ensuring reliability for vehicles of every era. Contact us for your custom quote today.

07/29/2026

Pinion Yoke Maintenance
Replacement Needed: If the tabs on your pinion yoke are broken or worn, replace the pinion yoke immediately.
Wear and Tear: Worn tabs can cause side-to-side movement of the U-joint, even with a high-quality U-joint. This wear can lead to high-speed vibrations (50-70+ mph).
Prevent Further Damage: A vibrating driveshaft accelerates wear on the tabs, so addressing the issue promptly is crucial.

Address

8327 McCullough Avenue
San Antonio, TX
78216

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5:30pm
Friday	8am - 4pm

Telephone

+12103426622

Website

http://driveshaftspecialist.com/

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