DSE Ford 9-Inch HS-Series Center Section - 3.50 Ratio - 31-Spline TrueTrac - 1350 Yoke - 90-10015
Build your Ford 9-inch rear end around a premium, performance-focused third member with the Detroit Speed 90-10015 HS-Series Center Section. This complete assembly combines a street-friendly 3.50 gear ratio with a 31-spline Eaton TrueTrac differential and GFX 1350 Ultra Performance yoke. The HS-Series is built around a Ford Racing investment-cast 3.250-inch bearing case that Detroit Speed states is approximately 4.5 pounds lighter than its standard Ford 9-inch N-Series case, giving serious street and Pro Touring builds a high-end center section without unnecessary weight.
Detroit Speed builds the 90-10015 with premium components throughout, including a Ford Daytona pinion support, ARP pinion support bolts, safety-wired ARP ring gear bolts, a premium ring and pinion, solid pinion preload spacer and TIMKEN bearings. The Eaton TrueTrac provides gear-driven limited-slip operation, while the GFX 1350 Ultra Performance yoke is supplied with a U-joint strap kit and 12-point bolts. Detroit Speed also individually inspects and hand deburrs the components used in its rear gear assemblies, putting the focus on careful assembly and component quality from the case to the yoke.
Specifications
- Part Number: 90-10015
- Manufacturer: Detroit Speed
- Product Type: Differential Assembly / Ford 9-Inch Center Section
- Series: HS-Series (SVO)
- Carrier Style: Ford 9-Inch
- Case: Ford Racing Investment Cast 3.250-Inch Bearing Case
- Case Material: Nodular Iron
- Gear Ratio: 3.50
- Axle Shaft Spline Count: 31-Spline
- Differential: Eaton TrueTrac
- Yoke: GFX 1350 Ultra Performance
- Yoke Style: 1350
- U-Joint Retention: Strap Kit with 12-Point Bolts
- Pinion Support: Ford Daytona
- Pinion Support Style: GFX Daytona
- Pinion Support Bolts: ARP
- Ring Gear Bolts: ARP, Safety Wired
- Ring and Pinion: Premium
- Pinion Preload: Solid Spacer
- Bearings: TIMKEN
- Pinion Seal: Ford
- Daytona Pinion Support D O-Ring: Included
- Oil Slinger: Included
- Emission Code: 4
Features
- HS-Series Ford 9-inch center section built for high-performance rear axle applications
- 3.50 gear ratio provides a versatile combination of acceleration and street cruising capability
- 31-spline Eaton TrueTrac differential provides gear-driven limited-slip operation
- Ford Racing investment-cast 3.250-inch bearing case is approximately 4.5 pounds lighter than Detroit Speed's standard Ford 9-inch N-Series case
- GFX 1350 Ultra Performance yoke supports heavy-duty driveline applications
- Includes U-joint strap kit with 12-point bolts
- Ford Daytona pinion support
- ARP pinion support bolts provide premium fastening hardware
- Safety-wired ARP ring gear bolts
- Premium ring and pinion
- Solid pinion preload spacer
- TIMKEN bearings
- Ford pinion seal
- Daytona pinion support D O-ring and oil slinger included
- Detroit Speed individually inspects and hand deburrs components used in its rear gear assemblies for quality assurance
Fitment
- Ford 9-Inch Rear Axle Applications
- Applications Using Compatible 31-Spline Axles
- Applications Requiring a 1350-Series Driveline Connection
Fitment Notes
Detroit Speed specifies the 90-10015 as an HS-Series Ford 9-inch differential assembly with a 3.50 gear ratio, 31-spline Eaton TrueTrac and 1350-series GFX 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 also offers REM isotropic surface finishing as an additional option intended to increase performance, durability and trouble-free operation.
FAQs
What makes the DSE 90-10015 an HS-Series center section?
The 90-10015 uses Detroit Speed's HS-Series configuration with a Ford Racing investment-cast 3.250-inch bearing case. Detroit Speed states that this case is approximately 4.5 pounds lighter than its standard Ford 9-inch N-Series case while retaining the premium component package used for this performance-oriented assembly.
What differential and gearing are used in the DSE 90-10015?
The 90-10015 combines a 3.50 gear ratio with a 31-spline Eaton TrueTrac differential. The TrueTrac uses a gear-driven limited-slip design rather than conventional friction clutch packs.
What yoke is included with the DSE 90-10015?
Detroit Speed equips the 90-10015 with a GFX 1350 Ultra Performance yoke. A U-joint strap kit with 12-point bolts is also included as part of the assembly.
Get Your Detroit Speed Components from Beefcake Racing
Build your Ford 9-inch rear end with the premium Detroit Speed 90-10015 HS-Series Center Section featuring 3.50 gearing, a 31-spline Eaton TrueTrac and GFX 1350 Ultra Performance yoke from Beefcake Racing. If you need help confirming axle, driveline or rear-end compatibility for your build, email sales@beefcakeracing.com or call 1-855-827-7223 for assistance.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
