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#91664088
Universal Ford 9 Inch Rear-End Disc Brake Conversion Kit, Black
- Achieve disc brake performance for your pre-1980 Ford passenger car 9 Inch rear-end with our easy to install, bolt-on conversion kit
- This kit provides all the brackets & flanges that fit the three most popular sizes of the 9 Inch rear-end (3-3/8" x 2", 3-1/2" x 2-3/8", 3-9/19" x 2")
$632.99
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Product Summary
Ford 9 Inch, Rear Position, 11 Inch Rotor Diameter
- Achieve disc brake performance for your pre-1980 Ford passenger car 9 Inch rear-end with our easy to install, bolt-on conversion kit
- This kit provides all the brackets & flanges that fit the three most popular sizes of the 9 Inch rear-end (3-3/8" x 2", 3-1/2" x 2-3/8", 3-9/19" x 2")
- Comes with drilled and slotted 11" cast iron rotors that are dual drilled for 5x4.5" for 1/2" studs and 5x4.75" for 7/16" studs
- Includes loaded black single piston calipers, stainless steel brake hoses, E-brake cables & loaded calipers, as well as all brackets & hardware
- Requires use of 15" wheels and an axle flange that has a diameter of 6-1/4" or smaller, if larger than 6-1/4" you'll need to machine it down to size
Key Specs
| MFG. Part # | 91664088 |
| Position | Rear |
| Wheel Bolt Pattern (in.) | 5x4.5 in. | 5x4.75 in. |
| Wheel Bolt Pattern (mm) | 5x114.3 mm | 5x120.65 mm |
| Rotor Diameter | 11 Inch |
Need To Know
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Return PolicySpeedway Motors 91664088 Details
Speedway Motors 91664088 Details
The Speedway Ford 9" Rear End Disc Brake Kit provides an easy to install, bolt on solution for upgrading your pre-1980 Ford passenger car 9” rear-end to disc brake performance. Speedway's Ford 9" Rear End Disc Brake Kit is unique in that it provides all the brackets and flanges that fit the three most popular sizes of the 9” rear end (3-3/8” x 2”, 3-1/2” x 2-3/8”, 3-9/19” x 2” ). This eliminates all guesswork when purchasing and installing the kit. The DBK9 comes in both standard and high performance models. The high performance LX kits upgrade to cross-drilled and slotted rotors and stainless steel braided brake lines.
- Black Rear Single Piston Calipers
- D154 Pads Included
- Stainless Steel Brake Hoses
- Caliper Brackets
- E-Brake Cables
- Mounting Hardware
- E-Brake Rear Loaded Calipers
- Brackets & Flanges to fit:
- 3-3/8” x 2”
- 3-1/2” x 2-3/8”
- 3-9/19” x 2”
- Drilled/ Slotted Rotors
- Drilled 5x4.5" for 1/2" Studs
- Drilled 5x4.75" for 7/16 Studs
- Fits Small Bearing Rear Ends
- 11" Vented Rotors
- Center Opening Of 2.78"
Charts
Specs
The caliper piston pin needs to be aligned with the notch in the pad to avoid fitment issues.
Guides & Documents
Speedway Motors 91664088 Specifications
Speedway Motors 91664088 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91664088 |
| Brand | Speedway Motors |
| Position | Rear |
| Wheel Bolt Pattern (in.) | 5x4.5 in. | 5x4.75 in. |
| Wheel Bolt Pattern (mm) | 5x114.3 mm | 5x120.65 mm |
| Rotor Diameter | 11 Inch |
| Rotor Type | Vented |
| Caliper Pistons | One |
| Caliper Finish | Powder Coated |
| Parking Brake Provision | Yes |
| Minimum Recommended Wheel Diameter | 15 Inch |
| Rotor Shape | Round |
| Hardware Included | Yes |
| Rotor Style | Drilled & Slotted |
| Front Rotor Included | No |
| Front Rotor Diameter | 11 Inch |
| Front Caliper Included | No |
| Rear Caliper Included | Yes |
| Front Spindles Included | No |
| Master Cylinder Included | No |
| Brake Booster Included | No |
| Brake Hoses Included | Yes |
| Ford Bearing End Style | Big Ford (Old/New) & Small Ford |
| Rear Rotor Included | Yes |
| Color | Black |
| Bolt Pattern | 5 on 4.5" | 4.75" |
| Front Caliper Piston Quantity | 1 |
| Front Caliper Finish | Powder Coated |
| GENERAL | |
| Sold in Quantity | Kit |
| Axle Flange Offset | 2.36" - 2.50" |
| Parking Brake Cables Included | Yes |
| Brake Hose Material | Stainless Steel Braided |
Ratings & Reviews
4.9
8 Reviews
Customers praised the product for its high quality, fitting as described with no modifications required. It's noted for its easy installation process, greatly helped by the inclusivity of pictures, videos, and descriptions. The product's price is competitive, while its quality surpasses that of others. The kit is well-equipped, with standout features such as the slotted disks. Some customers advised reading the description thoroughly to ensure getting the correct item. Despite minor issues with instruction clarity, customers still express satisfaction and willingness to repurchase.
Ratings & Reviews
4.9
8 Reviews
Customers praised the product for its high quality, fitting as described with no modifications required. It's noted for its easy installation process, greatly helped by the inclusivity of pictures, videos, and descriptions. The product's price is competitive, while its quality surpasses that of others. The kit is well-equipped, with standout features such as the slotted disks. Some customers advised reading the description thoroughly to ensure getting the correct item. Despite minor issues with instruction clarity, customers still express satisfaction and willingness to repurchase.
4.9
8 reviews
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Very nice and came with everything I needed
5.0
8 months ago
Jaryd
Morning view KY
Verified
Looks and fit very good very happy with these brakes
Would Recommend

I would purchase again
5.0
3 years ago
Gil
Las Cruces NM
Verified
Product fit as described
Would Recommend
Strong Conversion Kit with Easy Instructions!
5.0
4 years ago
Colby G.
Gainesville, Georgia
Verified
I have looked at this kit through and through and it is getting installed this week!
Would Recommend
Very easy even too easy.
5.0
5 years ago
Mattthecat
Fort Gordon, GA
Verified
I was worried about me setup. The pictures, videos, and descriptions worked and helped me understand. Install was easy and I am very pleased with the product. Price was comparable and the slotted disks look great. Make sure you read the description in full as I almost bought the wrong item.
Would Recommend
Very Nice Kit!
5.0
5 years ago
Prostreetdon
Hampton, CT
Verified
This kit was pretty easy to install. All the pieces are of decent quality and fit with no modifications.
Would Recommend
Great kit excellent price!
5.0
6 years ago
Dean
Hesperia
Verified
Great instructions ease of installation makes the rear end complete!
Would Recommend
Pretty nice kit!
4.0
6 years ago
Brett
Arkansas
For the price this is a nicely equipped kit. Pay attention to how the axle retainer and brackets mount, I had to figure mine out since instructions weren't that great.

I would buy again
5.0
7 years ago
Ed
Kingsland, Ga
Verified
I purchased this kit for my latest project and I know it works.
Would Recommend
Showing 8 of 8 reviews
Questions & Answers
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Fitment
Fitment
1966-1986 Ford Bronco
1957-1959 Ford Club
1962-1967 Ford Club Wagon
1957-1974 Ford Country Sedan
1957-1974 Ford Country Squire
1957-1960 Ford Courier Sedan Delivery
1957-1972 Ford Custom
1957-1960 Ford Custom 300
1964-1977 Ford Custom 500
1957-1958 Ford Del Rio Wagon
1968-1983 Ford E-100 Econoline
1975-1983 Ford E-100 Econoline Club Wagon
1975-1987 Ford E-150 Econoline
1975-1987 Ford E-150 Econoline Club Wagon
1968-1974 Ford E-200 Econoline
1963-1967 Ford Econoline
1957-1983 Ford F-100
1975-1986 Ford F-150
1957-1970 Ford Fairlane
1959-1967 Ford Galaxie
1962-1974 Ford Galaxie 500
1972-1976 Ford Gran Torino
1975-1980 Ford Granada
1965-1978 Ford LTD
1977-1979 Ford LTD II
1965-1973 Ford Mustang
1957-1974 Ford Ranch Wagon
1957-1979 Ford Ranchero
1957-1959 Ford Skyliner
1957-1960 Ford Sunliner
1957-1979 Ford Thunderbird
1968-1976 Ford Torino
1957-1960 Ford Victoria
1977-1980 Lincoln Versailles
1967 Mercury Brougham
1964-1967 Mercury Caliente
1957-1974 Mercury Colony Park
1966-1969 Mercury Comet
1957-1968 Mercury Commuter
1967-1979 Mercury Cougar
1959-1963 Mercury Country Cruiser
1966-1971 Mercury Cyclone
1975-1978 Mercury Grand Marquis
1963-1970 Mercury Marauder
1967-1978 Mercury Marquis
1961-1963 Mercury Meteor
1975-1980 Mercury Monarch
1957-1968 Mercury Montclair
1968-1976 Mercury Montego
1957-1974 Mercury Monterey
1958-1968 Mercury Park Lane
1966-1967 Mercury Villager

