What brake master cylinder / brake booster to get ? (and more)

[1995voyagerES]

I'm about to place a order at rockauto for some parts and my F350 needs a new brake booster badly. It's loosing vacuum pretty fast. I though if I'm into it so far I just order a new master cylinder too. My question is, at rockauto there are master cyl. with different bore sizes. Which one should I get ?
Right now I have this one in my cart:

RAYBESTOS MC39634 {#2539634} Bore Size=1-1/16" Professional Grade
[Flag indicates this part fits vehicles sold in the US Market. It does not indicate where the part was made -- manufacturers produce parts in multiple factories worldwide.] [Flag indicates this part fits vehicles sold in the Canadian Market. It does not indicate where the part was made -- manufacturers produce parts in multiple factories worldwide.] Without cruise control

It says "without cruise control" but I see no difference between them.
My truck has cruise control... (but it doesn't work).

I'll order the MOTORCRAFT BRB22 brake booster - is this the right one I need?


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I want to order a new speedo cable too because the speedometer is dancing.
Would this one fit?

ATP Y869

It's 4x4 + GV overdrive.
i need the cable from the overdrive "speed sensor" to the speedometer.

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Can anyone help me?
Thanks !

 

[crash-harris]

The speedo and tach are seperate beasts. Tach runs off an electronic sensor on the timing cover. You may need to pull and measure your original cable since you have a GV unit. It would be longer than stock.

 

[1995voyagerES]

Oops, of course I mean the speedo cable. Here in germany people say tacho(meter) for that
I guess it's the original cable but it attaches to the GV speed sensor. From the speed sensor to the GV unit I already have a new cable (which is about 60cm long).

 

[IDIoit]

i would explore the option of a hydroboost unit.
just throwin that out there.

 

[1995voyagerES]

Nah, I wanna keep it original.
It would be a big deal - you can get NO parts over here, it sucks.

 

[IDIoit]

we have guys in the states that would ship you the parts

 

[Teipsum]

For your master cylinder, if you have three brake ports on your existing one then get a master cylinder with cruise control/speed control. If it only has 2 get one without speed/cruise control. Even though my 93 has factory cruise control my master cylinder is the one without cruise control. I just made that mistake and ordered from rock auto with speed control and had to send it back.