DSE Ford 9-Inch N-Series Center Section - 3.50 Ratio - 31-Spline Eaton TrueTrac - 1350 Yoke - 90-20015
Build your Ford 9-inch rear end around a serious combination of strength, traction and proven hardware with the Detroit Speed 90-20015 N-Series Center Section. This assembled third member combines a versatile 3.50 gear ratio with a 31-spline Eaton TrueTrac and DSE 1350 Ultra Performance yoke. At its core is a genuine Ford SVO nodular iron H case with chromoly bearing caps and 3.250-inch bearings, creating a stout foundation for performance street, restomod and Pro Touring applications.
Detroit Speed builds its Ford 9-inch rear gear assemblies with an emphasis on component quality and precise preparation. Each 90-20015 features a premium ring and pinion, Ford Daytona pinion support, ARP pinion support bolts, safety-wired ARP ring gear bolts, DSE solid pinion preload spacer and TIMKEN bearings. The Eaton TrueTrac provides gear-driven limited-slip operation without conventional friction clutch packs, while the DSE 1350 Ultra Performance yoke is supplied with a U-joint strap kit and 12-point bolts. Detroit Speed individually inspects and hand deburrs the parts used in its rear gear builds for additional quality assurance.
Specifications
- Part Number: 90-20015
- Manufacturer: Detroit Speed
- Product Type: Differential Assembly / Ford 9-Inch Center Section
- Series: N-Series (SVO)
- Carrier Style: Ford 9-Inch
- Case: Ford SVO Nodular Iron H Case
- Case Material: Nodular Iron
- Case Bearing Size: 3.250 Inches
- Bearing Caps: Chromoly
- Gear Ratio: 3.50
- Axle Shaft Spline Count: 31-Spline
- Differential: Eaton TrueTrac
- Yoke: DSE 1350 Ultra Performance
- Yoke Style: 1350
- Pinion Support: Ford Daytona
- Pinion Support Style: Daytona
- Pinion Support Bolts: ARP
- Ring Gear Bolts: ARP, Safety Wired
- Ring and Pinion: Premium
- Pinion Preload: DSE Solid Spacer
- Bearings: TIMKEN
- Pinion Seal: Ford
- Daytona Pinion Support D O-Ring: Included
- Oil Slinger: Included
- U-Joint Strap Kit with 12-Point Bolts: Included
- Emission Code: 4
Features
- Assembled N-Series Ford 9-inch center section designed for high-performance rear axle builds
- 3.50 gear ratio offers a versatile gearing choice for performance street and Pro Touring applications
- 31-spline Eaton TrueTrac provides gear-driven limited-slip operation
- Genuine Ford SVO nodular iron H case made in the USA with Ford tooling
- 3.250-inch case bearings and chromoly bearing caps provide a strong foundation for the gear assembly
- DSE 1350 Ultra Performance yoke for compatible 1350-series driveline applications
- U-joint strap kit with 12-point bolts included
- Ford Daytona pinion support
- ARP pinion support bolts
- Safety-wired ARP ring gear bolts
- Premium ring and pinion
- DSE solid pinion preload spacer
- TIMKEN bearings
- Ford pinion seal
- DSE Daytona pinion support D O-ring and oil slinger
- Components are individually inspected and hand deburred by Detroit Speed for quality assurance
Fitment
- Ford 9-Inch Rear Axle Applications
- Applications Using Compatible 31-Spline Axles
- Applications Using a Compatible 1350-Series Driveline Connection
Fitment Notes
Detroit Speed specifies part number 90-20015 as an N-Series Ford 9-inch differential assembly with a 3.50 gear ratio, 31-spline Eaton TrueTrac and DSE 1350 Ultra Performance yoke. Confirm axle spline count, driveshaft and U-joint compatibility, and all other rear axle requirements for your specific build before ordering. Detroit Speed lists REM isotropic surface finishing as an available addition for increased performance, durability and trouble-free operation.
FAQs
What differential and gear ratio are used in the DSE 90-20015?
The Detroit Speed 90-20015 combines a 3.50 gear ratio with a 31-spline Eaton TrueTrac. The TrueTrac uses a gear-driven limited-slip design without conventional friction clutch packs.
What case does the DSE 90-20015 N-Series center section use?
Detroit Speed builds the 90-20015 around a genuine Ford SVO nodular iron H case made in the USA with Ford tooling. The case uses 3.250-inch bearings and chromoly bearing caps.
What yoke is included with the DSE 90-20015?
The 90-20015 includes a DSE 1350 Ultra Performance yoke along with a U-joint strap kit and 12-point bolts. Confirm that your driveshaft and U-joint configuration is compatible with a 1350-series yoke before ordering.
Get Your Detroit Speed Components from Beefcake Racing
Upgrade your Ford 9-inch rear end with the Detroit Speed 90-20015 N-Series Center Section featuring 3.50 gearing, a 31-spline Eaton TrueTrac and DSE 1350 Ultra Performance yoke from Beefcake Racing. For help confirming rear axle or driveline compatibility for your build, email sales@beefcakeracing.com or call 1-855-827-7223.
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