mikew
Member
- 454
- 8
- 18
- Location
- edmond, ok
Oddshot,
Make sure to post pictures of your build!
I'd like to put dual/split brakes on my truck and as you have, I've been gathering info about the dual brake system.
Here's what I think I know about the A3 system.
The air packs are the standard deuce ones.
I believe a valid part number for the master cylinder is: Bendix 11999 or Raybestos MC39577
This crosses to a NAPA TS108038, TS108002 and UP39577.
This is a dual circuit master cylinder with 1 3/4" bore used on Ford B600 buses in 1984-1985, about $150.
The pressure differential switch "seems" to be the exact same one used on.... wait for it...... an early '70s AMC Javelin! I've not found a part number or source for this, but just about any differential switch would work. It's plumbed between the master cylinder and air packs.
One of the air tanks has a baffle installed, dividing it into two separate tanks. I think using the stock air setup would be fine, you could lose boost but you'd still have brakes.
The air drier is an off-the-shelf Midland / Haldex "Pure Air Plus".
Make sure to post pictures of your build!
I'd like to put dual/split brakes on my truck and as you have, I've been gathering info about the dual brake system.
Here's what I think I know about the A3 system.
The air packs are the standard deuce ones.
I believe a valid part number for the master cylinder is: Bendix 11999 or Raybestos MC39577
This crosses to a NAPA TS108038, TS108002 and UP39577.
This is a dual circuit master cylinder with 1 3/4" bore used on Ford B600 buses in 1984-1985, about $150.
The pressure differential switch "seems" to be the exact same one used on.... wait for it...... an early '70s AMC Javelin! I've not found a part number or source for this, but just about any differential switch would work. It's plumbed between the master cylinder and air packs.
One of the air tanks has a baffle installed, dividing it into two separate tanks. I think using the stock air setup would be fine, you could lose boost but you'd still have brakes.
The air drier is an off-the-shelf Midland / Haldex "Pure Air Plus".