Hey.
Trying to find out where I can get a replacement vacuum assist dual brake booster. Everything I pull up on line is a single booster. I did find a schematic that shows the part number as "2005" which doesn't help much. Any one know what I'm talking about?

1970 f700
330 HD gas
7,000 lb front axel
17,500 lb rear with 15x6" brakes

Thanks for your time and for reading this.

 

Note: With dash (firewall) or frame (Hydro-Vac) booster?

Pics: Applications above notice line #'s / Line #'s with 2005's follow below

 

Good morning and thanks for the response Bill.
It is a frame mounted hydro vac booster. It looks to be a double but is it just two singles mounted tight together? I'm going to take it off here in a minute... I Had no trouble getting the wheel cylinders and brake shoes but this "dual" booster seems to throw the parts guy.

Really cool how you help so many people Bill. Every answer (from this forum) that comes up on my google searches is a response by you.
Thanks for your time.

 

Bill,
I'm trying to narrow this down based on parts list:
I think it should be one on lines 113 - 125.

My build sheet says truck was sold as a 70 but built in August of 69, so in the parts list what model year would I use?
The description in the models have sizes: 15"x3", etc.... This isn't shoe size is it? my brakes are 15x6"
I tried the number listed on a bendix web site, nothing came up. Is that a ford number?
Thanks for your time.

 

There's no 15" x 6" front brake shoe for an F700. Look at the brake shoe application chart below.

There is a 15" x 6" rear brake shoe, but that has nothing to do with brake booster applications. Ford only wants to know what the front brake sizes are for booster applications.

So, what size are the front brakes? I also need to know the VIN, specifically the last 6 digits.

 

Hey Bill.
Didn't see you had asked me for the vin.
VIN: F70DUG32333

I don't know the size of the front brakes.... I have replaced them and can not remember nor did I record it. I'll include the build sheet in case that could help. Is there a way for me to size the front brakes without taking the tire off?
Thank you

 

I also have this owner card if it helps:

 

G32338 = 1970 (1970 F100/750 serial number range: G30,001-J70,000).

Where is the booster located, on the dash (firewall) or on the frame rail?

 

It is on the frame.

 

I was afraid you'd say that, because if it was on the dash, there's only one booster, and what the front brake size is...makes no difference.

I need the size of the front brake shoes. The booster will be a Bendix Hydro-Vac unit...there might be a tag number on it. See parts catalog pic for location.

If the tag is there, won't need to know the size of the brakes.

 

So it looks like line 117/118?
If so can you tell me where I can get one?

Thank you

 

Notice what is says: from serial number J30,001. Your serial number is G32338.

Edit: Or it might be, 115/116 uses the same booster.

115/116/117/118/123 use the same booster, the same booster repair kit. I found 1 booster NOS

 

Still working on getting it out. It is two boosters joined together with piping and I'd assume sold as one unit. I'm interested in the one you've found. Can you send me a picture or link to it?
Also is that a ford part number or Bendix?

 

Ford part number: C9TZ-2005-F .. Hydro-Vac Power Brake Booster / Bendix part number: 2509140 / Obsolete

KLIMESH MOTOR SALES in Calmar IA has 1 = 563-562-3241.

HIGH BUCK! BOB ALLEN FORD in Overland Park KS may have 3 = 913-381-3000 (webpage last updated 7/27/2015).

 

This is really awesome! Thank you for your time and effort. I would have floundered forever trying to figure this out.