Description

This is a dual-diaphragm vacuum brake booster for a 67-70 Ford Mustang or Mercury Cougar power brake upgrade.

What's Included:

  • Dual-diaphragm vacuum brake booster
Fitment

Fits 67-70 Ford Mustang and Mercury Cougar.

Vehicle Fitment

1967 Ford Mustang, 1968 Ford Mustang, 1969 Ford Mustang, 1970 Ford Mustang, 1967 Mercury Cougar, 1968 Mercury Cougar, 1969 Mercury Cougar, and 1970 Mercury Cougar

Questions & Answers
Q: Single or dual diaphragm?

Dual-diaphragm — it delivers more brake assist than a single-diaphragm booster, a good match if you're running disc brakes or want a firmer power-assisted pedal.

Q: Does it fit both Mustang and Cougar, and what's the warranty?

Yes, fits 1967-1970 Ford Mustang and Mercury Cougar, and carries a 1-year warranty.

Q: Do I need to install the black sleeve spacer between the booster and the firewall?

Yes, on our kits it's not just a gasket — it acts as a vibration/heat isolator and keeps the booster at the correct depth off the firewall. If you're carrying over an older booster from a different setup (e.g. a Granada booster) that never used one, that's a different part and combination, not a sign you can skip it on ours.