Another brake booster question!??
Laughing Gas
Joined: Oct 2009
Posts: 874
Likes: 56
From: Merlin, OR
Brakes
I knew as soon as this was posted you would be flying numbers at me!!!
After much reading and searching I'm afraid the wrong booster was installed and I'm hoping that's all... my quick fix if possible is to just remove the booster and go back to manual brakes for the time being?? Of course I'll have to get numbers and be sure they match I assume?
After much reading and searching I'm afraid the wrong booster was installed and I'm hoping that's all... my quick fix if possible is to just remove the booster and go back to manual brakes for the time being?? Of course I'll have to get numbers and be sure they match I assume?
Logistics Pro
Joined: Oct 2006
Posts: 4,029
Likes: 891
From: East Central Ia
If possible go to a pick and pull and remove everything from what appears to be a unmolested truck. Dash support, pedal, booster linkage etc. Write down serial number of truck with gvwr and year if you can find it. Start from there.
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Junior User
Joined: Dec 2017
Posts: 86
Likes: 0
From: Fortson GA
D3TZ-2455-B .. Brake Pedal - Use without Power Brakes / Marked: D3TA-CA / Obsolete
1973/76 F100 2WD
You cannot use a P/B booster on a truck with manual brakes, you have to install the correct P/B brake pedal:
D3TZ-2455-A .. Brake Pedal - Use with Power Brakes / Marked: D3TA-AA / Obsolete
1973/76 F100 2WD & 1975/76 F150 except 1975/76 F100/150 with Speed Control // 1973/76 F250 2WD with single piston caliper disc brakes, except 1975/76 without Speed Control.
1973/76 F100 2WD
You cannot use a P/B booster on a truck with manual brakes, you have to install the correct P/B brake pedal:
D3TZ-2455-A .. Brake Pedal - Use with Power Brakes / Marked: D3TA-AA / Obsolete
1973/76 F100 2WD & 1975/76 F150 except 1975/76 F100/150 with Speed Control // 1973/76 F250 2WD with single piston caliper disc brakes, except 1975/76 without Speed Control.
Is it possible for me to cut and extend the rod from the top of the pedal going through the firewall to give it the 2" its lacking to increase pressure?? Or is there some other issue?
Last edited by xXANBXx; Aug 13, 2019 at 04:18 PM. Reason: Spelling
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Junior User
Joined: Dec 2017
Posts: 86
Likes: 0
From: Fortson GA
I am doing my best to not Have to remove the pedals and use what I have already installed
Lead Driver
Joined: Jul 2017
Posts: 9,591
Likes: 1,171
From: San Jose, CA
I can't claim to have seen every car ever made, but in general US made vehicles since the sixties all have their brake pedal higher than the gas pedal by at least a bit. I would therefore do the same thing with your truck.
It allows more leeway if there is a problem with the hydraulic system, so that the pedal does not hit the floor before you've gotten as much braking as possible. Any little bit of air could bottom you out, and certainly the loss of one circuit would floor the pedal for sure.
Just my opinion. There is probably a specification for this, and especially so if it's adjustable from the factory. Sorry if I'm off base, but pretty sure I would not want my brake pedal as low as the throttle.
Unless your throttle pedal is higher than most!
Paul
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