Expert rear end and differential rebuilds for commercial trucks serving Chester County, Philadelphia, Wilmington DE, South Jersey, and Baltimore. Dana, Meritor, Eaton, and Spicer specialists with 60+ years combined experience. Gear ratio changes and tandem axle service available.
STR Rebuilders specializes in heavy-duty truck differential and rear axle rebuilding for commercial fleets, construction companies, and owner-operators throughout Chester County, the Delaware Valley, and the entire Mid-Atlantic region.
Whether you're dealing with a noisy differential, worn bearings, or need a complete gear ratio change, our experienced technicians have the expertise and equipment to get the job done right.
Complete carrier assemblies, power dividers, and inter-axle differentials
Custom gear setups for fuel economy or maximum pulling power
Precision gear setup with proper backlash and pattern contact
Stop leaks and eliminate noise with quality replacement parts
Dana, Meritor, Eaton, Spicer
We rebuild differentials for all major commercial truck brands including Dana, Meritor, Eaton, Spicer, Rockwell, and more.
Unlimited miles coverage
Every differential rebuild includes our 2-year, unlimited-mile warranty. Quality parts and expert craftsmanship you can trust.
PA, NJ, MD, DE service area
We offer convenient pickup and delivery for rear ends and differentials throughout Chester County and the Mid-Atlantic region.
Located in West Chester, PA, we serve commercial truck operators throughout a 4-state region
West Chester, Downingtown, Coatesville, Kennett Square, Phoenixville, Malvern
Media, Springfield, Chester, Ridley Park, Upper Darby, Brookhaven
Lancaster, Ephrata, Lititz, Reading, Wyomissing, Kutztown
Center City, Northeast Philly, King of Prussia, Norristown, Lansdale
Camden, Cherry Hill, Trenton, Burlington, Vineland, Atlantic City
Princeton, New Brunswick, Somerville, Edison, Woodbridge
Wilmington, Newark, New Castle, Dover, Middletown, Smyrna
Baltimore, Harford County, Cecil County, Aberdeen, Elkton, Bel Air
Common signs include whining or howling noises from the rear axle, vibration at highway speeds, clunking when accelerating or decelerating, and leaking differential fluid. If you notice any of these symptoms, have your differential inspected promptly to prevent more costly damage.
Most differential and rear end rebuilds at our West Chester shop take 1-2 business days. We stock common bearings, seals, and gear sets to minimize wait times. Complex jobs or gear ratio changes may take slightly longer.
Yes! We specialize in gear ratio changes for commercial trucks. Whether you need higher ratios for better fuel economy or lower ratios for more pulling power, we can set up your differential to match your application.
Absolutely. We have extensive experience rebuilding tandem axle differentials including power dividers, inter-axle differentials, and both forward and rear carrier assemblies. We service all major brands including Dana, Meritor, Eaton, and Spicer.
Yes! We regularly service commercial trucks from Wilmington DE, Newark DE, Camden NJ, Cherry Hill, Trenton, Baltimore, and throughout the Mid-Atlantic region. Our central Chester County location is convenient to the I-95 corridor and major highways.
STR Rebuilders is located in West Chester, PA - approximately 30 minutes from Center City Philadelphia. We're the closest heavy-duty differential specialists serving Philadelphia, Delaware County, and the surrounding suburbs.
Yes, we provide pickup and delivery for differentials throughout Lancaster County, Berks County (Reading area), and Central PA. Many customers from as far as Harrisburg and York ship units to us for expert rebuilding.
Call us today for expert differential diagnostics and a free estimate. Serving Pennsylvania, New Jersey, Delaware, and Maryland with fast turnaround and honest pricing.