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#91031934
Speedway Rear Disc Brake Kit with Emergency Brake, 1.94 Inch Backspace
- Our most affordable emergency brake kit
- Calipers accept either GM or Lokar type E-brake cables and are tapped to accept common 7/16"-20 banjo fittings
- Big 11.75"x.81" rotors will provide plenty of stopping power
$346.99
/each
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Product Summary
Universal Fit, Rear Position, 11.75 Inch Rotor Diameter
- Our most affordable emergency brake kit
- Calipers accept either GM or Lokar type E-brake cables and are tapped to accept common 7/16"-20 banjo fittings
- Big 11.75"x.81" rotors will provide plenty of stopping power
- Steel caliper bracket welds to the axle tube so it will fit virtually any application
- Hats drilled for 5 on 4 1/2", 5 on 4 3/4" and 5 on 5" bolt patterns
Comes as a Kit
View Kit Components
Key Specs
| MFG. Part # | 91031934 |
| Position | Rear |
| Wheel Bolt Pattern (in.) | 5x4.5 in. | 5x4.75 in. |
| Wheel Bolt Pattern (mm) | 5x114.3 mm | 5x120.65 mm |
| Rotor Diameter | 11.75 Inch |
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Speedway Motors 91031934 Details
Replace those old drum brakes with modern rear disc brakes. This affordable rear disc brake kit conversion gives you an emergency brake just like your family car has. The steel caliper bracket welds to your 3" axle tube, so it will fit virtually any application. The calipers accept either GM or Lokar type E-brake cables and are tapped to accept the common 7/16"- 20 banjo fittings. The 11-3/4" x .81" vented iron rotors will give you plenty of stopping power.
Wilwood aluminum rotor hat fits 5 on 4-1/2", 5 on 4-3/4", and 5 on 5" bolt patterns and has a 1.94" backspace.
NSRA Legal
Charts
Specs
The caliper piston pin needs to be aligned with the notch in the pad to avoid fitment issues.
Guides & Documents
Speedway Motors 91031934 Specifications
Speedway Motors 91031934 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91031934 |
| 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 | 11.75 Inch |
| Rotor Type | Vented |
| Caliper Pistons | One |
| Caliper Finish | Natural |
| Parking Brake Provision | Yes |
| Minimum Recommended Wheel Diameter | 15 Inch |
| Rotor Shape | Round |
| Hardware Included | Yes |
| Rotor Style | Plain Face |
| Front Rotor Included | No |
| Front Rotor Diameter | 11.75 Inch |
| Front Caliper Included | No |
| Rear Caliper Included | Yes |
| Front Spindles Included | No |
| Master Cylinder Included | No |
| Brake Booster Included | No |
| Brake Hoses Included | No |
| Rear Rotor Included | Yes |
| Rotor Hat Bolt Pattern | 8 x 7.00" |
| Color | Natural |
| Bolt Pattern | 5 on 4.5" | 4.75" |
| GENERAL | |
| Sold in Quantity | Kit |
| Notes | Includes rotors, rotor hats, caliper brackets, calipers, pads, and hardware. |
| Rotor Thickness | 0.81" |
| Rotor Backspace | 1.94" |
| Thread Pitch | 7/16"-20 |
| Centerline of Holes | 5.5" |
Ratings & Reviews
4.3
4 Reviews
The product stands out due to its excellent quality for an attractive price, surpassing competitors' offerings. Although it may not fit all models (e.g., 1985 Elcamino), it is typically a practical and efficient choice for many consumers. A point of note is the inability to accommodate an Ebrake on specific models.
Ratings & Reviews
4.3
4 Reviews
The product stands out due to its excellent quality for an attractive price, surpassing competitors' offerings. Although it may not fit all models (e.g., 1985 Elcamino), it is typically a practical and efficient choice for many consumers. A point of note is the inability to accommodate an Ebrake on specific models.
4.2
4 reviews
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Filter by Ratings
Nice bang for your buck
3.0
a year ago
LS Elky
Chandler, AZ
Verified
It's a decent kit. I'm just not a fan of using the Cadillac calipers. The parking brake is incorporated with the caliper piston and it can be a little tricky setting the parking brake distance. It also does not release very well once the parking brake is engaged. Once the pads wear some I think it will be better.
Would Recommend
Great rear brake kit
5.0
a year ago
Paul K
Vancouver Canada
Verified
Everything you need for rear disc brakes and an emergency brake
Would Recommend
Not correct for my Elcamino
4.0
10 years ago
Larry
Tulsa, Ok. metro area
Verified
Wanted Ebrake, but mechanism doesn't clear the frame of 1985 Elcamino, placing on bottom of axle not a good plan. Wish I'd known that earlier. I ended up without Ebrake. I would have bought it without the Ebrake.
Would Recommend
excellent
5.0
10 years ago
bck
utah
Verified
Very nice product for a great price it can't be beat
Would Recommend
Showing 4 of 4 reviews
Questions & Answers
8 Questions • 8 Answers
Questions & Answers
8 Questions • 8 Answers
Would these fit with my Speedway GM style 15" x 8" Rally Wheels?
by Steve
• 8 years ago
1 answer
View Answer
I want to switch to disc brakes on my Banjo rear end so which kit suits my needs, and how do I decide which backspace I need for the weld on kits.
by Steve
• 8 years ago
1 answer
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will this kit work on a 1950 chevy car with the stock rearend
by bell
• 10 years ago
1 answer
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Will this kit fit 72 nova 10 bolt 8.5 with staggered shocks and can I reuse factory brake cables
by Stephen
• 11 years ago
1 answer
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will this fit a 85 c10 truck?
by Pres-10
• 11 years ago
1 answer
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is there an option for big ford flange in addition to welded i have a 9" ford rear in my chevelle i am converting to disc brakes i see you offer a two piece rotor with steel brake rotor hats which i assume is lighter then an all iron rotor? I was wondering if you sell this kit with bolt on big ford flanges instead of weld on flanges any more details on the system would be much appreciated
by Joe68
• 11 years ago
1 answer
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Will this fit a stock 12 bolt diff. 57 chevy 3100 truck?
by stuniska
• 12 years ago
1 answer
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Will this fit an 8" ford with 3" between housing flange and buggy spring mount? I have read that some kits will not fit if the buggy spring mount is too close to the flange. Also, is 1.94" the minimum axle offset? It looks like mine is 2.25".
by JScott30A
• 12 years ago
1 answer
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8 of 8 questions shown