-7%
Eaton Detroit Truetrac Diff 30 Spline 1.30in Axle Shaft Dia 3.73 & Up Ratio GM Half Ton Truck - Black Ops Auto Works
Click to zoom in

Eaton Detroit Truetrac Diff 30 Spline 1.30in Axle Shaft Dia 3.73 & Up Ratio GM Half Ton Truck

Eaton
EAT913A315
Differentials
20+ Units In Stock - Ships Next Business Day
$ 811.94 $ 746.99
$ 746.99

The Detroit Truetrac was the first helical gear differential ever introduced into the automotive aftermarket as an Eaton brand. It remains the leading helical gear-type limited slip differential in the industry. Detroit Truetrac's proven helical gear design eliminates the need for wearable parts, resulting in maintenance free traction recognized not only for its toughness, but its smooth and quiet operation as well.Proven design, low cost and effective performance all make the Detroit Truetrac limited slip differential the ideal choice for a wide variety of vehicle applications. No maintenance - Just Traction.

This Part Fits:

Year Make Model Submodel
1969-1974 Chevrolet Blazer Base
1978-1980 Chevrolet C10 Big Ten
1975-1981 Chevrolet C10 Cheyenne
1981-1982 Chevrolet C10 Custom
1975-1980 Chevrolet C10 Custom Deluxe
1981 Chevrolet C10 Deluxe
1975-1982 Chevrolet C10 Scottsdale
1975-1982 Chevrolet C10 Silverado
1965-1967 Chevrolet C10 Panel Base
1964-1974 Chevrolet C10 Pickup Base
1967-1974 Chevrolet C10 Suburban Base
1981-1982 Chevrolet C10 Suburban Custom
1975-1980 Chevrolet C10 Suburban Custom Deluxe
1981 Chevrolet C10 Suburban Deluxe
1975-1980,1982 Chevrolet C10 Suburban Scottsdale
1975-1980,1982 Chevrolet C10 Suburban Silverado
1975-1981 Chevrolet G10 Beauville
1981 Chevrolet G10 Bonaventure
1975-1981 Chevrolet G10 Chevy Van
1975-1981 Chevrolet G10 Sportvan
1964-1967,1969-1974 Chevrolet G10 Van Base
1968-1974 Chevrolet G10 Van Sportvan
1975-1981 Chevrolet K10 Cheyenne
1981 Chevrolet K10 Custom
1975-1980 Chevrolet K10 Custom Deluxe
1981 Chevrolet K10 Deluxe
1975-1981 Chevrolet K10 Scottsdale
1975-1981 Chevrolet K10 Silverado
1964-1974 Chevrolet K10 Pickup Base
1967-1974 Chevrolet K10 Suburban Base
1981-1982 Chevrolet K10 Suburban Custom
1975-1980 Chevrolet K10 Suburban Custom Deluxe
1981 Chevrolet K10 Suburban Deluxe
1975-1980,1982 Chevrolet K10 Suburban Scottsdale
1975-1977,1979-1980,1982 Chevrolet K10 Suburban Silverado
1976 Chevrolet K5 Blazer Base
1975-1980 Chevrolet K5 Blazer Cheyenne
1981 Chevrolet K5 Blazer Custom
1975,1977-1980 Chevrolet K5 Blazer Custom Deluxe
1981 Chevrolet K5 Blazer Deluxe
1978,1980-1981 Chevrolet K5 Blazer Silverado
1965-1966 Chevrolet Suburban Base
1975-1978 GMC C15 Base
1977-1978 GMC C15 Heavy Half
1975-1978 GMC C15 High Sierra
1977 GMC C15 Indy Hauler
1975-1978 GMC C15 Sierra Classic
1975-1978 GMC C15 Sierra Grande
1978 GMC C15 Street Coupe
1975-1978 GMC C15 Suburban Base
1975-1978 GMC C15 Suburban High Sierra
1975-1978 GMC C15 Suburban Sierra Classic
1975-1978 GMC C15 Suburban Sierra Grande
1967-1974 GMC C15/C1500 Pickup Base
1967-1974 GMC C15/C1500 Suburban Base
1979-1981 GMC C1500 Suburban Base
1979-1981 GMC C1500 Suburban High Sierra
1979-1981 GMC C1500 Suburban Sierra Classic
1979-1981 GMC C1500 Suburban Sierra Grande
1967 GMC C25/C2500 Suburban Base
1975-1978 GMC G15 Rally
1975-1978 GMC G15 Rally STX
1975-1978 GMC G15 Vandura
1967,1970-1971 GMC G15/G1500 Van Base
1968-1969,1971-1974 GMC G15/G1500 Van Rally
1968-1974 GMC G15/G1500 Van Vandura
1979-1981 GMC G1500 Rally
1979-1981 GMC G1500 Rally STX
1979-1981 GMC G1500 Vandura
1970-1981 GMC Jimmy Base
1975-1981 GMC Jimmy High Sierra
1975-1981 GMC Jimmy Sierra Classic
1975-1981 GMC Jimmy Sierra Grande
1978-1981 GMC Jimmy Street Coupe
1975-1978 GMC K15 Base
1975-1978 GMC K15 High Sierra
1977 GMC K15 Indy Hauler
1975-1978 GMC K15 Sierra Classic
1975-1978 GMC K15 Sierra Grande
1975-1978 GMC K15 Suburban Base
1975-1978 GMC K15 Suburban High Sierra
1975-1978 GMC K15 Suburban Sierra Classic
1975-1978 GMC K15 Suburban Sierra Grande
1966-1974 GMC K15/K1500 Pickup Base
1967-1974 GMC K15/K1500 Suburban Base
1979-1982 GMC K1500 Base
1979-1982 GMC K1500 High Sierra
1979-1982 GMC K1500 Sierra Classic
1979-1982 GMC K1500 Sierra Grande
1979-1982 GMC K1500 Suburban Base
1979-1982 GMC K1500 Suburban High Sierra
1979-1982 GMC K1500 Suburban Sierra Classic
1979-1982 GMC K1500 Suburban Sierra Grande

Request For Information

Have questions about ? Fill out the form below and we'll get back to you by the next business day.
Differentials

Differentials

Differentials distribute engine torque between drive wheels, allowing them to rotate at different speeds through corners while maintaining traction. Upgrading from a factory open differential to a limited-slip or locking differential is one of the most impactful drivetrain improvements you can make for towing, off-roading, drag racing, or any application where both wheels need to work together under load.Popular Differential UpgradesTop upgrades include Eaton Detroit Locker and Eaton Truetrac limited-slip units for GM, Ford, Dana, and Chrysler axles, ARB Air Lockers for Jeep and truck off-road applications, and OS Giken Super Lock LSD units for JDM performance platforms. Locker conversions for Dana 44 and Dana 60 front axles are essential for serious rock crawling, while Truetrac helical LSDs deliver traction improvements without aggressive locking behavior for street and tow applications.What is the difference between a locker and a limited-slip differential?A locking differential ...

View Differentials Products
Differentials & Components

Differentials & Components

Shop differentials and components at Black Ops Auto Works for premium differentials, differential covers, differential gears, locker differentials, limited-slip differentials, install kits, rebuild kits, bushings, seals, yokes, spider gears, and final drive components for cars, trucks, SUVs, and off-road builds. Whether you are upgrading for better traction, stronger power delivery, improved durability, or drivetrain reliability, this collection includes the parts needed for street, towing, racing, and off-road applications. Shop Differentials & Components by Category Browse drivetrain and axle upgrades across popular product categories, including: Differentials Differential covers Differential cover gaskets Differential rebuild kits Differential install kits Differential overhaul kits Differential seal kits Differential bushings Differential mounts Differential braces Differential housings Differential dropouts Differential spider gears Differential yokes Final drive gears Wh...

View Differentials & Components Products
Drivetrain

Drivetrain

Shop drivetrain parts and accessories at Black Ops Auto Works for differentials, axles, driveshafts, clutch kits, flywheels, flexplates, shifters, transmission components, ring and pinion gears, differential braces, differential bushings, wheel hubs, wheel bearings, U-joints, valve bodies, transmission coolers, drivetrain mounts, and performance driveline upgrades. This collection is built for street cars, drag cars, track builds, trucks, Jeeps, SUVs, high-horsepower Mopar builds, imports, European performance vehicles, and off-road applications that need stronger power delivery, durability, and reliability. Use this Drivetrain collection to find the right upgrade by vehicle platform, drivetrain layout, transmission type, power level, and product category. Differentials and ring and pinion gears support traction and gearing changes, axles and driveshafts help transfer power, clutch kits and flywheels improve manual transmission performance, transmission coolers and valve bodies supp...

View Drivetrain Products
Eaton

Eaton

Eaton Performance is best known in the automotive aftermarket for its Eaton M90, M112, and M122 positive displacement supercharger roots-type blowers that power factory applications including the Ford Lightning, Mustang Cobra, Pontiac GTO, and Cadillac CTS-V as original equipment, which means the same engineering behind factory horsepower numbers reaches the enthusiast market directly through Eaton's performance division. The brand also produces Detroit Locker and Truetrac limited-slip and locking differentials that are among the most trusted traction management solutions for off-road, racing, and street-performance applications. Eaton's position as both an OEM supplier and a performance aftermarket brand gives its products an unusual combination of engineering rigor and enthusiast credibility. Builders who want proven, race-tested traction and boost solutions choose Eaton because the products have been validated at OEM production volumes before reaching aftermarket shelves.Popular ...

View Eaton Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×