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#91031911D
Deluxe Brake Kit, 55-57/59-64 Chevy Full-size Car,Drilled/Slotted
- Our 11" drilled and slotted rotors disc brake conversion kit makes it easy to convert your old drum brake setup to disc brakes on GM full size cars
- This full size disc brake conversion kit won't require you to swap out spindles, saving you time and money
- Comes with 11" cast iron rotors (5 on 4.75" BP), loaded GM calipers, rubber brake lines, and all required hardware, seals, and bearings
$417.99
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Product Summary
Front Position, 11 Inch Rotor Diameter, Natural
- Our 11" drilled and slotted rotors disc brake conversion kit makes it easy to convert your old drum brake setup to disc brakes on GM full size cars
- This full size disc brake conversion kit won't require you to swap out spindles, saving you time and money
- Comes with 11" cast iron rotors (5 on 4.75" BP), loaded GM calipers, rubber brake lines, and all required hardware, seals, and bearings
- Fits 1955-1957 & 1959-1964 full Size Chevy B-body (Impala, Bel Air, Biscayne) with 15" or larger wheels and will increase track width by 1-3/4" (7/8" per side)
- Includes detailed instructions for a easy installation
Comes as a Kit
View Kit Components
Key Specs
| MFG. Part # | 91031911D |
| Position | Front |
| Wheel Bolt Pattern (in.) | 5x4.75 in. |
| Wheel Bolt Pattern (mm) | 5x120.65 mm |
| Rotor Diameter | 11 Inch |
Need To Know
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Speedway Motors 91031911D Details
- Complete “at the wheels” bolt on disc brake conversion kit
- Works with your original drum brake spindles and steering arms
- Uses GM-spec rotors and disc brake calipers for easy service parts needs
- 11-inch drilled and slotted rotors feature GM 5x4.75 bolt pattern with 7/16-20 studs
- Will fit original 14-inch disc brake wheels, though 15-inch wheels recommended
- A significant increase in braking performance for today’s roads
- Kit adds a total track width increase of 1-3/4-inches (7/8-inch per side)
- Not for use with 2-inch drop spindles and not compatible with 1958 drum spindles
Increase Your Driving Safety with Bolt on Disc Brakes for Your Full Size Chevy Car
We’ve heard the story a thousand times. You’d really like to drive your full size Chevy a bit more, but today’s distracted drivers and increased traffic on today’s roads just puts too much stress on you as a driver trying to get your Impala, Biscayne, or Bel-Air stopped safely when traffic hits the brakes in front of you. We get it. We’ve driven plenty of manual drum brake cars in our time and on a busy street or highway it is the definition of a white knuckle ride. But don’t hang up those car keys! Upgrading your old drum brakes to a more effective and safer front disc brake system is one of the best safety upgrades you can make to your ’55-’64 Chevy car.
Everything You Need to Update Your Classic Chevy from Drum to Disc Brakes
Our 11-inch single piston caliper disc brake conversion kit is a vast improvement for your ’55-’64 full size Chevy car. Using a unique caliper adapter bracket along with drilled and slotted GM 11-inch rotors and common ’78-’88 GM “Metric” brake calipers, this kit is 100 percent bolt on with zero modifications to your factory drum brake spindle. The drilled and slotted rotors provide improved heat dissipation and gas venting for a better pedal feel, and there’s no denying their great looks behind large window performance wheel packages too.
Note that this kit does not mount to the 1958 model year spindle due to specific differences this one year spindle has. Additionally, this kit does not work with aftermarket 2-inch drop spindles. We do offer a ’55-’57 Chevy disc brake kit that is compatible with our 2-inch drop spindles for use with GM Metric calipers if you’re looking for that extra low ride height up front with a ’57 Chevy disc brake conversion.
Our front disc brake conversion kit includes rotors, calipers, caliper brackets, bearings, seals, brake hoses, and all installation hardware. There is no need to cut/flare your existing brake lines or make any additional changes at the wheel other than using a 14-inch disc brake spec wheel or upgrading to a 15-inch or larger wheel for caliper clearance. Due to the brake rotors used in this kit track width is increased 7/8-inch per side (or 1-3/4-inch total). This is typically not a problem unless running wide aftermarket wheels that are already close to your fender edges.
A Significant Braking Upgrade for The Money
Our ’55-’64 full size Chevy front disc brake kit is easy on the wallet too! For not much more than the cost of a complete drum brake overhaul (new drums, shoes, hardware, wheel cylinders, bearings, seals, hoses, etc.) you can upgrade your Biscayne, Impala, Tri-Five, or other full size Chevy car to the power and safety of disc brakes. We can offer such a cost effective kit by utilizing proven components, such as ’69-’72 Chevy rotors and ’78-’88 GM Metric calipers as part of the kit. These items have been used on countless millions of Chevy cars and will get the job done without the need for custom “race car” bits like two-piece rotors and other special machined adapters/hardware. If you’re looking for something a little more basic, we do offer this same disc brake upgrade with plane face rotors, a perfect solution if you're running steel wheels.
Using these drilled and slotted 11-inch vented rotors and single piston GM Metric calipers with large 2-1/2-inch pistons provide a huge increase in stopping power over the original drum brakes on your Chevy. The industry standard brake pads (a great street compound that offers exceptional braking with low dust), bearings, seals, and hardware mean that any emergency replacement parts are as close as your corner parts store, getting you back on the road in no time without having to wait for custom parts to be shipped. Not to mention how much easier it is to service the typical disc brake system vs the much more involved and confusing drum brake setup with all it’s return springs, different brake lining sizes, and more to trip you up.
With any drum to disc brake conversion kit the properly sized master cylinder is important to effective braking operation and proper brake pedal feel. The factory ’55-’64 drum brake master cylinder is a single reservoir setup that will not be compatible with your new front disc brakes. Therefore, we highly recommend adding a power brake booster with dual bowl master cylinder to this kit. We have both a 7-inch booster with fixed proportioning valve kit and an 8-inch booster with adjustable proportioning valve kit, both with a 1-inch bore disc/drum “Corvette” master cylinder. Both options are a direct bolt on your firewall and require minimal brake line changes to plumb into your current brake system when converting drum brakes to disc.
Guides & Documents
Speedway Motors 91031911D Specifications
Speedway Motors 91031911D Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91031911D |
| Brand | Speedway Motors |
| Position | Front |
| Wheel Bolt Pattern (in.) | 5x4.75 in. |
| Wheel Bolt Pattern (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 | Drilled & Slotted |
| 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 4.75" |
| Color | Natural |
| Front Caliper Finish | Natural |
| Front Caliper Piston Quantity | 1 |
| GENERAL | |
| Sold in Quantity | Kit |
| Notes | For '55-'64 Chevy full size cars. Will work with 14" and larger wheels intended for use with disc brakes. Will not fit 2" drop spindles. Kit adds 1-3/4" total track width (7/8" per side). Does not work on 1958 oem spindles. |
| Rotor Thickness | 1.05" |
| Stud Diameter | 0.44" |
| Stud Length | 0.8" |
| Front Suspension Type | IFS |
| Front Caliper Material | Cast Iron |
| Front Rotor Style | Drilled and Slotted |
| Track Width Increase | 1.75" |
Ratings & Reviews
4.6
17 Reviews
Customers highly rate our disc brake kit for its excellent quality and affordable price. Users have found the kit easy to install, a perfect fit for classic car restorations like a '64 Impala SS or a '55 Belair, and an efficient upgrade from front drum brakes. The kit's components--hardware, bearings, and essential parts--are comprehensive and fit perfectly with the original spindles. Many recommend our product for its great value and plan to use it again, thanks to its superb performance and practical usability.
Ratings & Reviews
4.6
17 Reviews
Customers highly rate our disc brake kit for its excellent quality and affordable price. Users have found the kit easy to install, a perfect fit for classic car restorations like a '64 Impala SS or a '55 Belair, and an efficient upgrade from front drum brakes. The kit's components--hardware, bearings, and essential parts--are comprehensive and fit perfectly with the original spindles. Many recommend our product for its great value and plan to use it again, thanks to its superb performance and practical usability.
4.6
17 reviews
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Most Liked Positive Review
5.0
Perfect Fit!
I decided to change the Front Drum brakes in my 64 Impala SS out for this Disc Brake Kit. I had some extra spindles etc so putting it together on the bench was easy. Bolted right up to the Tubular A Arms I also put in. I have not connected hoses as the Impala is back under construction and I needed to roll the chassis.
Most Liked Negative Review
2.0
Not sure if I'd buy again
It's a nice kit but the wheel studs were too short and nearly cost me my car. If running aftermarket wheels you may have this issue.
Filter by Ratings
EASY INSTALL
5.0
5 months ago
MIKE
ASTORIA OREGON
Verified
GREAT PRODUCT HIGHLY RECCOMEND
Would Recommend
Very nice
5.0
7 months ago
Ja
Hamity oregon
Verified
Look good and fit great
Would Recommend
Not sure if I'd buy again
2.0
a year ago
Tommy
Pawleys Island, South Carolina
Verified
It's a nice kit but the wheel studs were too short and nearly cost me my car. If running aftermarket wheels you may have this issue.
Would Not Recommend
Complete Kit
5.0
a year ago
Terry H.
Alabama
Verified
Came with everything needed. A little costly for what it is though.
Would Recommend
nice product
5.0
a year ago
mobldj
moreno valley ca
Verified
cross drilled perfect
Would Recommend
I would definitely buy again excellent product and quality.l
5.0
2 years ago
Skip
Sweet home or.
Verified
Every thing was perfect, every thing worked perfectly. Will tell everyone about speedway
Would Recommend
Fit perfect easy install works great
5.0
2 years ago
Trevor
Winnipeg Canada
Verified
I would recommend this to anyone do a brake upgrade
Would Recommend
good kit
4.0
3 years ago
larry
new london mo.63459
Verified
good kit ,good price ,wiil use again.
Would Recommend
Fast service.
4.0
4 years ago
Happy customer
Southern Idaho
Verified
We are restoring a car and switching to front disc brakes. The part numbers on the box did not match the numbers on the disc's after calling the tech help line, the correct part number is in route. Thanks for the speedy help.
Would Recommend
Perfect Fit!
5.0
5 years ago
Fuz
San Antonio, Republic of Texas
I decided to change the Front Drum brakes in my 64 Impala SS out for this Disc Brake Kit. I had some extra spindles etc so putting it together on the bench was easy. Bolted right up to the Tubular A Arms I also put in. I have not connected hoses as the Impala is back under construction and I needed to roll the chassis.
Would Recommend
Showing 10 of 17 reviews
Questions & Answers
1 Question • 1 Answer
Questions & Answers
1 Question • 1 Answer
Is the rotor and hub a one piece design? Or well you get 2 rotors to work on the stock hubs?
by Daniel
• 7 years ago
1 answer
View Answer
1 of 1 questions shown
Fitment
Fitment
1955-1964 Chevy Bel Air
1959-1964 Chevy Biscayne
1959-1961 Chevy Brookwood
1957 Chevy Del Ray
1959-1964 Chevy Impala
1955-1961 Chevy Nomad
1955-1957 Chevy One-Fifty Series
1955-1960 Chevy Sedan Delivery
1955-1957 Chevy Two-Ten Series

