DSE Mini-Tubs (040406DS) - 1979-1993 Ford Mustang / 1979-1986 Mercury Capri
Make room for serious rear tire on your Fox Body without rolling the quarter-panel lips, flaring the body, or modifying the frame rails with Detroit Speed Mini-Tubs. Designed specifically for 1979-1993 Ford Mustang and 1979-1986 Mercury Capri applications, part number 040406DS replaces the factory inner wheel housings with precision-stamped Mini-Tubs that provide clearance for tires up to 315mm wide. The result is significantly more room for performance-oriented wheel and tire combinations while retaining a clean, OE-style appearance.
Detroit Speed stamps these Mini-Tubs from durable 18-gauge steel and laser trims each stamping for accurate, consistent fitment. Extra material is incorporated into the design for builders who want additional tub depth beyond the frame rails. The Mini-Tubs are up to 2.5 inches wider than stock and include the seat belt anchor relocation brackets and required hardware, allowing the factory rear seats to be retained after the necessary seat modifications. Manufactured in the USA, this system gives Fox Body builders a purpose-built solution for adding rear tire clearance without resorting to completely custom wheel tubs.
Specifications
- Part Number: 040406DS
- Product: Mini-Tubs
- Application: 1979-1993 Ford Mustang / 1979-1986 Mercury Capri
- Position: Rear Inner Wheel Housings
- Material: Steel
- Steel Thickness: 18 Gauge
- Mini-Tub Width Increase: Up to 2.5 inches Wider Than Stock
- Maximum Tire Width: Up to 315mm
- Appearance: Stamped OE-Style
- Construction: Laser-Trimmed Stampings
- Right-Hand Mini-Tub Included: Yes
- Left-Hand Mini-Tub Included: Yes
- Seat Belt Anchor Relocation Brackets Included: Yes
- Mini-Tub Cutout Template Included: Yes
- Installation Hardware Included: Yes
- Installation Instructions Included: Yes
- Country of Manufacture: USA
Features
- Provides clearance for rear tires up to 315mm wide when properly configured
- Accommodates wider wheel and tire packages without rolling, flaring, or frame rail modification
- Up to 2.5 inches wider than the factory inner wheel housings
- Stamped from durable 18-gauge steel
- Laser-trimmed stampings provide accurate fitment and consistency
- Extra material allows additional tub depth if installation beyond the frame rails is desired
- Stamped OE-style appearance maintains a clean, factory-inspired finished look
- Includes right- and left-hand Mini-Tubs
- Includes seat belt anchor relocation brackets and installation hardware
- Allows the factory rear seats to be retained with the required modifications
- Includes Mini-Tub cutout template and installation instructions
- Made in the USA
Fitment Notes
- Provides clearance for tires up to 315mm wide when properly configured
- Fitment does not include a 315 drag radial
- Rear interior trim panels must be trimmed to fit around the new Mini-Tubs
- Rear seat modification is required
- The factory rear suspension cannot be retained with the Detroit Speed Mini-Tub installation
- Factory rear shock mounts are removed during installation
Fitment
- 1979 Ford Mustang
- 1980 Ford Mustang
- 1981 Ford Mustang
- 1982 Ford Mustang
- 1983 Ford Mustang
- 1984 Ford Mustang
- 1985 Ford Mustang
- 1986 Ford Mustang
- 1987 Ford Mustang
- 1988 Ford Mustang
- 1989 Ford Mustang
- 1990 Ford Mustang
- 1991 Ford Mustang
- 1992 Ford Mustang
- 1993 Ford Mustang
- 1979 Mercury Capri
- 1980 Mercury Capri
- 1981 Mercury Capri
- 1982 Mercury Capri
- 1983 Mercury Capri
- 1984 Mercury Capri
- 1985 Mercury Capri
- 1986 Mercury Capri
FAQs
What size rear tire can DSE 040406DS Mini-Tubs accommodate?
Detroit Speed designed 040406DS to provide clearance for tires up to 315mm wide when properly configured. This additional room is achieved without requiring quarter-panel lip rolling, body flaring, or frame rail modification. Fitment does not include a 315 drag radial.
Can I keep the factory rear seat with DSE 040406DS Mini-Tubs?
Yes. Detroit Speed includes the required seat belt anchor relocation brackets and hardware so the factory rear seats can be retained. The rear seat and interior trim panels require modification to accommodate the new Mini-Tubs.
Can the factory rear suspension be retained with DSE 040406DS Mini-Tubs?
No. Detroit Speed specifies that the factory rear suspension cannot be retained with this Mini-Tub installation, and the factory shock mounts are removed during the conversion.
Why Buy from Beefcake Racing?
Beefcake Racing is your source for Detroit Speed suspension, chassis, and body components for serious street, track, and Pro Touring builds. Whether you are making room for more rear tire on your Fox Body or planning a complete suspension and chassis upgrade, our experienced team can help you select the right components for your combination. Questions about DSE Mini-Tubs part number 040406DS? Email sales@beefcakeracing.com or call 1-855-827-7223.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

