What SSBC disc brake conversion kit fits a 1967-69 Mustang?

The A121 (4-piston, non-power, bolts to 6-cylinder or V8 drum spindles), A121P-A (power, automatic transmission only), or A121P-M (power, manual transmission only), all requiring 14"x7" minimum wheels. For 68-69, 1-piston options A132-1 (non-power), A132-A (power, automatic), and A132-M (power, manual) include new disc brake spindles and need 14" wheels.

Does the kit change the wheel bolt pattern on 6-cylinder cars?

Yes. Most 6-cylinder cars have a 4x4.5" bolt pattern; the kit converts the front only to a 5x4.5" bolt pattern.

What kit fits a 1970-73 Mercury Cougar?

A133-2 (4-piston, non-power, 70-73, 14"x7" wheels), A134 (1-piston, power, 71-72, includes new spindles, 14" wheels), or A134-1 (1-piston, non-power, 1973, includes new spindles, 14" wheels). For 1970 only, A133 (power) or A133-1 (non-power) 1-piston kits are also listed.

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1967-73 Ford & Mercury Drum to Disc Brake Conversion Kits - SSBC Catalog Page

SSBC catalog page for 1967-73 standard front drum-to-disc brake kits with part numbers

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SSBC sales-catalog page listing 1967-73 front drum-to-disc brake conversion kits with photos, part numbers, and fitment tables.

AI caption January 2007 · Photo 80 of 156

This is page 15 of an SSBC (Stainless Steel Brakes Corporation) catalog covering 1967-73 standard front drum-to-disc brake conversion kits for Ford and Mercury vehicles. Application tables list kits by year, part number, description, and minimum wheel size for Ford Fairlane, Falcon, Maverick, Mustang, and Torino, plus Mercury Comet and Cougar. Kits include 1-piston and 4-piston caliper options in power and non-power configurations; some kits bolt to existing 6-cylinder or V8 drum spindles while others include new disc brake spindles. Part numbers include A121, A121P-A, A121P-M, A132-1, A132-A, A132-M, A133, A133-1, A133-2, A133-2P, A134, and A134-1. Minimum wheel sizes are 14" or 14"x7" depending on kit. A promotional callout states the kits include calipers, rotors, pads, master cylinder, booster (in power kits), spindles (if required), brackets, splash shields, bearings, seals, lines, and hardware. Footnotes warn that the master cylinder will not bolt to the stock booster on vehicles with OE power drum brakes, and that most 6-cylinder cars have a 4x4.5" bolt pattern, which the kit converts (front only) to 5x4.5". Contact info: www.ssbrakes.com, 800.448.7722.

This document covers 1967-73, which may differ from this 1990 Ford Mustang.

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Frequently asked questions

What SSBC disc brake conversion kit fits a 1967-69 Mustang?: The A121 (4-piston, non-power, bolts to 6-cylinder or V8 drum spindles), A121P-A (power, automatic transmission only), or A121P-M (power, manual transmission only), all requiring 14"x7" minimum wheels. For 68-69, 1-piston options A132-1 (non-power), A132-A (power, automatic), and A132-M (power, manual) include new disc brake spindles and need 14" wheels.
What is included in SSBC drum-to-disc brake kits?: Calipers, rotors, pads, master cylinder, booster (in power kits), spindles (if required), brackets, splash shields, bearings, seals, lines, and hardware. Exact contents may vary.
Will the kit's master cylinder work with my stock power booster?: Per footnote 1, the master cylinder will not bolt to the stock booster on vehicles with O.E. power drum brakes.
Does the kit change the wheel bolt pattern on 6-cylinder cars?: Yes. Most 6-cylinder cars have a 4x4.5" bolt pattern; the kit converts the front only to a 5x4.5" bolt pattern.
What kit fits a 1970-73 Mercury Cougar?: A133-2 (4-piston, non-power, 70-73, 14"x7" wheels), A134 (1-piston, power, 71-72, includes new spindles, 14" wheels), or A134-1 (1-piston, non-power, 1973, includes new spindles, 14" wheels). For 1970 only, A133 (power) or A133-1 (non-power) 1-piston kits are also listed.