Differential Components

Differential Components: The Gear Set That Decides Where Your Power Goes

The differential splits drive between your two axle shafts and lets the wheels turn at different speeds through a corner. The differential components here are the pieces that make that happen and let you change how it behaves: limited-slip units, Truetrac-style helical carriers, loaded housings, and locking hub conversion kits. People fit them when an open diff spins one wheel on corner exit, when a stock carrier can't take the torque, or when a rebuild needs the guts replaced rather than the whole axle. This is drivetrain work, so plan for setup and gear mesh checks when you install one.

What ThreePiece Stocks

There are 253 differential components in this category, spanning 19 brands. Prices currently run from $27 to $3,106 for what's in stock right now - that's a live range, not a fixed price. The catalog leans heavily on Yukon Gear & Axle (132 items) and Eaton (25), with Whiteline, Torque Solution, BMR Suspension, Ford Racing, OS Giken, Cusco, Prothane, Energy Suspension, ARB and others filling out the rest.

Concrete examples: the Eaton Detroit Truetrac 30-spline for the Dana 60 and the 35-spline Dana 80 Truetrac cover heavy axle builds. On the sport side there's the OS Giken Super Lock LSD for the 240SX and the OS Giken Super Lock LSD for the Supra JZA80. Muscle-car buyers can look at the Ford Racing Super 8.8in IRS loaded housing with 3.55 gears, and truck builds at the top end include the Yukon spin-free locking hub conversion kit for Dana 60/AAM Dodge.

Of the range, 105 items list specific fitment. Sampled makes include Subaru, Ford, Chevrolet, Chrysler, Nissan, Jeep, Mitsubishi and Toyota, with vehicles like the Mustang, WRX, Camaro, 240SX, Wrangler and F-Series appearing, across model years from 1963 to 2025.

How To Choose

  • Helical/Torque-biasing (Truetrac style): smooth, quiet, no clutch pack to wear. Good street and mild-off-road choice, but it can lose bite if one wheel fully unloads.
  • Clutch-type LSD (OS Giken Super Lock): aggressive lockup for track and drift use, matched to specific gearboxes and axle sizes - read the fitment note in the product name carefully.
  • Loaded housing: the Ford Racing 8.8in comes with a set ratio, so it's a bolt-in path rather than a from-scratch build.
  • Spline and axle diameter matter. A 30-spline unit will not fit a 35-spline axle, so confirm spline count and shaft diameter before you order.

What Else You Need

Match your new carrier to a full-locking setup with differential lockers, seal the job with differential covers, and check your axles for spline compatibility. If you're in the drivetrain deep already, the clutch components section covers the other end of the power path.

Fitment Help And Ordering

All orders ship free, and Affirm and Katapult financing is available. Not sure a spline count or axle matches your build? Call fitment help at 813-535-5801 or reach us through contact us before you buy.

Differential Components: The Gear Set That Decides Where Your Power Goes

The differential splits drive between your two axle shafts and lets the wheels turn at different speeds through a corner. The differential components here are the pieces that make that happen and let you change how it behaves: limited-slip units, Truetrac-style helical carriers, loaded housings, and locking hub conversion kits. People fit them when an open diff spins one wheel on corner exit, when a stock carrier can't take the torque, or when a rebuild needs the guts replaced rather than the whole axle. This is drivetrain work, so plan for setup and gear mesh checks when you install one.

What ThreePiece Stocks

There are 253 differential components in this category, spanning 19 brands. Prices currently run from $27 to $3,106 for what's in stock right now - that's a live range, not a fixed price. The catalog leans heavily on Yukon Gear & Axle (132 items) and Eaton (25), with Whiteline, Torque Solution, BMR Suspension, Ford Racing, OS Giken, Cusco, Prothane, Energy Suspension, ARB and others filling out the rest.

Concrete examples: the Eaton Detroit Truetrac 30-spline for the Dana 60 and the 35-spline Dana 80 Truetrac cover heavy axle builds. On the sport side there's the OS Giken Super Lock LSD for the 240SX and the OS Giken Super Lock LSD for the Supra JZA80. Muscle-car buyers can look at the Ford Racing Super 8.8in IRS loaded housing with 3.55 gears, and truck builds at the top end include the Yukon spin-free locking hub conversion kit for Dana 60/AAM Dodge.

Of the range, 105 items list specific fitment. Sampled makes include Subaru, Ford, Chevrolet, Chrysler, Nissan, Jeep, Mitsubishi and Toyota, with vehicles like the Mustang, WRX, Camaro, 240SX, Wrangler and F-Series appearing, across model years from 1963 to 2025.

How To Choose

  • Helical/Torque-biasing (Truetrac style): smooth, quiet, no clutch pack to wear. Good street and mild-off-road choice, but it can lose bite if one wheel fully unloads.
  • Clutch-type LSD (OS Giken Super Lock): aggressive lockup for track and drift use, matched to specific gearboxes and axle sizes - read the fitment note in the product name carefully.
  • Loaded housing: the Ford Racing 8.8in comes with a set ratio, so it's a bolt-in path rather than a from-scratch build.
  • Spline and axle diameter matter. A 30-spline unit will not fit a 35-spline axle, so confirm spline count and shaft diameter before you order.

What Else You Need

Match your new carrier to a full-locking setup with differential lockers, seal the job with differential covers, and check your axles for spline compatibility. If you're in the drivetrain deep already, the clutch components section covers the other end of the power path.

Fitment Help And Ordering

All orders ship free, and Affirm and Katapult financing is available. Not sure a spline count or axle matches your build? Call fitment help at 813-535-5801 or reach us through contact us before you buy.