Brake Booster & Master Cylinder mating

[61TbirdCGR]

Just when I thought I knew every nut & bolt on my car.....

Had to get the 10 bolt Brake Booster rebuilt as it had a massive leak, the pedal was harder than a rock and the car was running lean [due to the vacuum leak]. Sent my original unit off for rebuilding and just got it back, with a post-it note attached, reminding me that "IMPORTANT-TWO PIECE SPACER IS REQUIRED FOR FUNCTION". When I took it apart and there was no spacer. I have the OEM manual and there is no spacer shown, only the nylon breather that fits flush with the booster. I checked several Parts site and the spacer is shown for the 10 bolt unit starting in 1967, but no one shows the 2 piece spacer for the 1961 model year. I called the place that rebuilt it and they insist it should be installed between the existing single compartment master cylinder and booster. You got me-has any other 1961/62 models have this 2 piece spacer and if yes, can you please send a pix? I have 4 wheel drum brakes and do not desire to convert to disc's-she is 100% original at this time [except for a Pertronix kit]. THANK YOU in advance.

[Jim Wulf]

I'm not aware of any 2 piece spacer on the 61-63 Midland Ross booster-MC setup.

[Aaron65]

This is all that was on the back of the booster on my '63.

[61TbirdCGR]

THANK YOU! That matches mine; can you please post a pix of the front of the booster as well?

[Aaron65]

This is the only one I have, right before I sent it in for rebuilding.

[61TbirdCGR]

Yep-dead match! Installing today without any spacer. Thx again!

[62roadster]

I've installed three of these screw type boosters on my Thunderbirds in the past and never was there any additional spacers between the booster and the master cylinder; just be sure to set your pushrod length according to the service manual, I think it's a little under 1 in,,,

[61TbirdCGR]

Roger that- I have the OEM Manual. Thx