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#91664094
1964-1969 Ford Mustang Economy Bolt-On Disc Brake Kit
- Gain modern stopping power on your 1964-1/2-1969 Mustang with our complete 11" disc brake kit
- Features 11" cast iron rotors, loaded metric calipers, slide bolts, brake hoses, crush washers, dust caps, and all seals, bearings, & hardware
- Designed to work with a minimum 15" wheel allowing modern disc brake stopping power
$450.99
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Product Summary
Front Position, 11 Inch Rotor Diameter, Natural
- Gain modern stopping power on your 1964-1/2-1969 Mustang with our complete 11" disc brake kit
- Features 11" cast iron rotors, loaded metric calipers, slide bolts, brake hoses, crush washers, dust caps, and all seals, bearings, & hardware
- Designed to work with a minimum 15" wheel allowing modern disc brake stopping power
- Works with your factory V8 front drum brake spindles as a complete bolt on braking solution that can be manual or power assisted
- One of the lowest cost drum to disc brake conversions for 1964-1/2-1969 Mustangs on the market
Comes as a Kit
View Kit Components
Key Specs
| MFG. Part # | 91664094 |
| Position | Front |
| 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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Speedway Motors 91664094 Details
- Fits 1964-1969 V8 drum brake spindles with no modifications
- Works with manual or power assist braking systems
- Features 11-inch diameter vented disc brake rotors with Ford 5x4-1/2 bolt pattern
- Uses popular GM “Metric” single piston disc brake calipers
- Includes street “soft” compound organic D154 brake pads
- Requires a minimum of a 15-inch diameter wheel for caliper clearance
- Complete “at the wheel” drum to disc brake conversion kit for your vintage Mustang
- In-house designed and manufactured caliper adapter brackets
- All bearings, seals, brake hoses, and mounting hardware included
Ditch Those Sketchy Drum Brakes on Your ’64-’69 Mustang and Convert to Disc Brakes
The first generation Mustang, specifically the 1964-1/2 to 1969 model years, are extremely popular rides. From basic cruisers to major pro touring style or restomod builds, these vintage Mustangs are sought out by many enthusiasts. Be it a hardtop, fastback, or convertible, there is a fan somewhere handing over their hard earned cash for those Mustang car keys only to have their bubble burst on that first drive home. Yes, these early Mustangs are popular, but their handling, braking, and comfort have not aged as well as the Mustang’s overall exterior looks have.
The Mustang came from the factory with manual drum brakes at all four corners. There was an option for power drum brakes, which helped with pedal feel a bit, and there also was an option for manual-only disc brakes, but very few Mustangs saw these options. So, many of the Mustangs out there you’ll find are still running the factory manual drum brakes. There are several problems with front drum brakes. While some will argue that a drum brake will have more surface area than a disc brake (which is indeed often true), the drum brake is much more susceptible to water intrusion. This can create a severe brake pull when the brakes are applied after driving through standing water or in hard rain. There’s no worse feeling than stepping on the brake pedal and your vintage Mustang changes lanes for you!
Drum brakes also do not shed heat efficiently. The large cast iron drum stores the heat energy given off the brake shoes when the car is slowed since there is no air circulation to speak of inside the drum. This means drum brakes for any sort of performance driving will overheat and fade quickly. Of course, we’d be remiss in mentioning that drum brakes have more moving parts and are more complicated than a simple floating caliper disc brake setup. Many a weekend wrench have tried to rebuild their drum brakes only to get the shoes on backwards (yes, there is a primary and secondary shoe), install the shoe return springs improperly, and several other things to watch out for when rebuilding drum brakes. Upgrading to the best Mustang disc brake conversion kit you’ll find for the money eliminates all these problems while saving you money.
An Easy to Install Disc Brake Conversion Kit That Fits Your Original Drum Brake Spindle
Many front drum to disc brake conversions require a specific disc brake spindle or they make you grind/modify your factory spindle in some way. Our Mustang drum to disc brake conversion kit uses adapter brackets made from 1/4-inch A36 steel plate we’ve designed in-house and then zinc plated for corrosion resistance to create a true bolt-on disc brake solution using your original V8 Mustang’s drum brake spindles. There is nothing to grind, notch, drill out, or otherwise modify on your OEM V8 spindles. As a matter of fact, you don’t need to remove the spindles or touch any of your Mustang’s front suspension for this disc brake upgrade. Installation is basic ratchet and wrench work that can be completed in an hour or so. The only tough part, if you want to call it that, is adapting your factory brake lines to the kit’s brake hoses, as you may need to relocate or shorten the brake hard lines depending on how you route and mount your front brake hoses and brackets included in the kit.
Once you’ve installed our caliper adapter brackets to your stock spindles it is simply a matter of packing wheel bearings and installing the rotor onto the spindle pin, followed by mounting the calipers onto the caliper brackets. Finish the job with a dual reservoir master cylinder and an adjustable brake pedal pushrod. Or upgrade to power brakes while you’ve got the toolbox open by using either our 64-66 Mustang or 67-70 Mustang power brake conversion kits that include power booster, master cylinder, and proportioning valve with pre-bent brake lines.
11-inch Disc Brakes for Not Much More Than a Full Drum Brake Rebuild—That’s Value!
If you start adding up everything you would need to fully rebuild your Mustang’s stock front drum brakes from the backing plates out (shoes, hardware, wheel cylinders, bearings, seals, brake drum, and new brake hoses) you’re not that far off from the cost of this 11-inch vented disc brake conversion with single piston caliper. It’s a great disc brake conversion kit for street use. The vented cast iron rotors easily shed heat generated under heavy braking. Meanwhile, the GM “Metric” caliper has become so popular in street and motorsports use we’ve cast our own version and made minor changes for strength and fitment. Plus, the industry standard D154 brake pads these calipers use allow you to easily upgrade to more aggressive brake compounds if you wish to do so.
While a great value that will provide ample stopping power for your V8 Mustang, this kit does require 15-inch or larger wheels for adequate clearance of the caliper’s mounting position. Most likely you have a nice set of wheels in mind for an upgrade or your Mustang is already running 15-inch or larger wheels so this requirement shouldn’t pose a problem unless you’re wishing to stick with the factory 14-inch wheels. If you’re looking for a more “correct” drum to disc brake conversion for your vintage Mustang we do offer the traditional 4-piston fixed caliper disc brake setup that was the factory option on 1965-1966 Mustangs.
A drum to disc brake conversion kit that dramatically upgrades your vintage Mustang’s braking abilities while leaving your wallet intact for other upgrades or repairs on your Mustang. Isn’t that what we all want? A great product at a great price that takes our project car budget further. Upgrade your Mustang’s brakes today and know you’ll be safer on the road no matter what the traffic or weather conditions throw at you.
Speedway Motors 91664094 Specifications
Speedway Motors 91664094 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91664094 |
| Brand | Speedway Motors |
| Position | Front |
| 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 | Natural |
| Parking Brake Provision | No |
| Minimum Recommended Wheel Diameter | 15 Inch |
| Rotor Shape | Round |
| Hardware Included | Yes |
| Rotor Style | Plain Face |
| Spindle Type | Factory Drum Spindle |
| Front Rotor Included | Yes |
| Front Rotor Diameter | 11 Inch |
| Front Caliper Included | Yes |
| Rear Caliper Included | No |
| Front Spindles Included | No |
| Master Cylinder Included | No |
| Brake Booster Included | No |
| Brake Hoses Included | Yes |
| Rear Rotor Included | No |
| Bolt Pattern | 5 on 4.5" |
| Bracket Material | Steel |
| Color | Natural |
| Front Caliper Finish | Natural |
| Wheel Diameter | 15 Inch |
| Front Caliper Piston Quantity | 1 |
| GENERAL | |
| Sold in Quantity | Kit |
| Notes | Recommend dual-bowl disc/drum master cylinder with installation of this disc brake conversion |
| Bore Size | 2.38" |
| Rotor Thickness | 0.88" |
| Stud Diameter | 0.5" |
| Stud Length | 1.29" |
| Thread Pitch | 1/2"-20 |
| Front Suspension Type | IFS |
| Rotor Finish | Natural |
| Rotor Material Type | Cast Iron |
| Brake Hose Material | Rubber |
| Front Rotor Style | Plain Face |
| Bearings Included | Yes |
| Bracket Color | Zinc plated |
| Bracket Included | Yes |
| Brake Pads Included | Yes |
| Intended for Street Use | Yes |
Ratings & Reviews
4.8
9 Reviews
Customers highly commend our product's quality and ease of assembly - features that set us apart from competitors. They appreciate its superb fitting and functional parts, even suggesting it for rear disk installation. The kit's practical design, which accommodates modifications for enhanced usability, was highlighted. Strongly recommended by users for its perfect fit and integral parts, our product offers an effortless installation experience.
Ratings & Reviews
4.8
9 Reviews
Customers highly commend our product's quality and ease of assembly - features that set us apart from competitors. They appreciate its superb fitting and functional parts, even suggesting it for rear disk installation. The kit's practical design, which accommodates modifications for enhanced usability, was highlighted. Strongly recommended by users for its perfect fit and integral parts, our product offers an effortless installation experience.
4.8
9 reviews
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Filter by Ratings
Great brake kit
5.0
8 months ago
Nick
Minnesota
Verified
Kit fit as needed. Relatively easy to install.
Would Recommend
Yes, I would use again
5.0
11 months ago
Doc
Elkton, FL
Verified
Bolted on fast and easy
Mustang disc brake conversion.
5.0
12 months ago
Steve
Leander, Texas
Verified
I bought this kit because Speedway makes great disc brake kits. Not only do they work but are reasonably priced. The instructions were very clear and everything was assembled correctly. The only problem I had was the spindle nuts were wrong. I used the old ones with no problems.
Would Recommend
Fairly easy to install.
4.0
a year ago
Blaze
Athens GA
Verified
This kit was fairly easy to install, wish some of the diagrams in the instructions were better and drawn differently. Some tight squeezes to get the spacers in but I got them. Had to add a wheel spacer after installation due to clearance issues. Be weary of the brake lines and making sure they don't pinch on lower control arm. Castle nuts didn't fit on my spindles so I used the original ones. Haven't tested it yet waiting to install booster and master cylinder.
Would Recommend
Yes
4.0
a year ago
Just me
Lou. Ky
Verified
Unable to fully install at present time. Have bench assembled one side. All appeared to fit properly. Did have issue with spindle nut size, but was corrected.
Would Recommend
66 mustang
5.0
2 years ago
Matthew Simpson
Amarillo Texas
Verified
Just installed it on my 66 mustang and it fit great and looks awesome. Definitely a must safety improvement. Instructions were good too. Only complaint is that you will need to buy the brake pad clips separately
Would Recommend
Yes I would repurchase it
5.0
2 years ago
Tagalong
Jameson,Mo
Verified
I installed it on a 61 Falcon. I had purchased a different disk brake kit but was totally unhappy with it. This one is great !
Would Recommend
Went together easy
5.0
2 years ago
Bub
Fairfield ca
Kit wnet in great. Everything fit together well. The only part that I modified was on the calipers where the hose screws in there are 2 tabs. I ground the tabs down to make bolting them in much easier. I may have be able to get a wrench on without doing this but 3 seconds of grinding or 10 minutes of busting knuckles? If I do rear disks I will buy a speedway kit.
Would Recommend
I would recommend this kit to anyone.
5.0
2 years ago
Chato
El Paso Tx
Verified
Everything fit perfectly didn't have any problems. Used every thing that came in the kit.
Would Recommend
Showing 9 of 9 reviews
Questions & Answers
1 Question • 1 Answer
Questions & Answers
1 Question • 1 Answer
I'm looking for the brake rotors from this kit. My mustang has this kit installed but rotors are bad. Are they available?
by Jman
• a year ago
1 answer
View Answer
1 of 1 questions shown
Fitment
Fitment
1964-1969 Ford Mustang

