number. It's a brake light switch.
What is this chingus?
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
Where is the part number? No see um.
No part numbers marked on parts after 1956, just casting and ID engineering numbers, when applicable.
D5TZ-13480-A .. Stop Light Switch / Marked with ID engineering number: D5TB-13480-AA / (Motorcraft SW-1258).
Applications: 1975/77 F100/350 460 with Speed Control / 1978 F100/350 with Speed Control before serial number CG0,001.
With Speed Control, this switch fits onto a stud on the brake pedal, retained by a clevis pin (380699-S100), then to the master cylinder rod.
There are two nylon bushings on either side of the stud (C5DZ-2B129-B), another nylon bushing (C1TT-2B309-A) inside the master cylinder rod.
Lower left in pic.
No part numbers marked on parts after 1956, just casting and ID engineering numbers, when applicable.
D5TZ-13480-A .. Stop Light Switch / Marked with ID engineering number: D5TB-13480-AA / (Motorcraft SW-1258).
Applications: 1975/77 F100/350 460 with Speed Control / 1978 F100/350 with Speed Control before serial number CG0,001.
With Speed Control, this switch fits onto a stud on the brake pedal, retained by a clevis pin (380699-S100), then to the master cylinder rod.
There are two nylon bushings on either side of the stud (C5DZ-2B129-B), another nylon bushing (C1TT-2B309-A) inside the master cylinder rod.
Lower left in pic.
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
That's a secondary brake light switch and is a sign that your truck has or had cruise control. Trucks with cruise control had two brake light switches in parallel, each a different style ("plunger" and "mechanical"). Since the brake switch can shut off cruise control and is considered "mission-critical", having the two in parallel acts as a redundant safety feature. That's my understanding at least.
Thread Starter
|
Mountain Pass
Joined: May 2013
Posts: 141
Likes: 0
From: Reno NV
Well ya....everyone knows chingus is just slang for chingadera....gotta get all proper on me...sheesh! 
Thread Starter
|
Mountain Pass
Joined: May 2013
Posts: 141
Likes: 0
From: Reno NV
Or.....I pull from the knowledge of those on the forum (what is a forum for afterall?) and hope to not get a self righteous smart *** answer.....
Trending Topics
Thread Starter
|
Mountain Pass
Joined: May 2013
Posts: 141
Likes: 0
From: Reno NV
Where is the part number? No see um.
No part numbers marked on parts after 1956, just casting and ID engineering numbers, when applicable.
D5TZ-13480-A .. Stop Light Switch / Marked with ID engineering number: D5TB-13480-AA / (Motorcraft SW-1258).
Applications: 1975/77 F100/350 460 with Speed Control / 1978 F100/350 with Speed Control before serial number CG0,001.
With Speed Control, this switch fits onto a stud on the brake pedal, retained by a clevis pin (380699-S100), then to the master cylinder rod.
There are two nylon bushings on either side of the stud (C5DZ-2B129-B), another nylon bushing (C1TT-2B309-A) inside the master cylinder rod.
Lower left in pic.
No part numbers marked on parts after 1956, just casting and ID engineering numbers, when applicable.
D5TZ-13480-A .. Stop Light Switch / Marked with ID engineering number: D5TB-13480-AA / (Motorcraft SW-1258).
Applications: 1975/77 F100/350 460 with Speed Control / 1978 F100/350 with Speed Control before serial number CG0,001.
With Speed Control, this switch fits onto a stud on the brake pedal, retained by a clevis pin (380699-S100), then to the master cylinder rod.
There are two nylon bushings on either side of the stud (C5DZ-2B129-B), another nylon bushing (C1TT-2B309-A) inside the master cylinder rod.
Lower left in pic.
SO from what I am gathering, Its a feature to release the cruise control when the brake is depressed...? I do know that when I push the brake pedal the brake lights come on...check....and the truck no longer has cruise control...check. So the chingadera is not mission critical?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
Thank you sir.
SO from what I am gathering, Its a feature to release the cruise control when the brake is depressed...? I do know that when I push the brake pedal the brake lights come on...check....and the truck no longer has cruise control...check. So the chingadera is not mission critical?
SO from what I am gathering, Its a feature to release the cruise control when the brake is depressed...? I do know that when I push the brake pedal the brake lights come on...check....and the truck no longer has cruise control...check. So the chingadera is not mission critical?
If your brake lights work, the plunger switch is still there, so that's fine. If you no longer have cruise control, then you don't need the backup mechanical switch. Just tuck it up out of the way and you'll be good.
Thread Starter
|
Mountain Pass
Joined: May 2013
Posts: 141
Likes: 0
From: Reno NV
On cruise control trucks, either switch (plunger or mechanical) can release cruise control, AND actuate the brake lights. They're in parallel.
If your brake lights work, the plunger switch is still there, so that's fine. If you no longer have cruise control, then you don't need the backup mechanical switch. Just tuck it up out of the way and you'll be good.
If your brake lights work, the plunger switch is still there, so that's fine. If you no longer have cruise control, then you don't need the backup mechanical switch. Just tuck it up out of the way and you'll be good.
I've been weeding through this truck trying to undo all of the redneck engineering the previous owner did. I don't think I am going to try to redo the power steering at this point so I will tuck it away as recommended. Thanks!
Thread
Thread Starter
Forum
Replies
Last Post
1965GTFB
1961 - 1966 F-100 & Larger F-Series Trucks
15
Jun 2, 2017 07:49 PM
Becky_is_a_66
1961 - 1966 F-100 & Larger F-Series Trucks
8
Jun 2, 2013 06:19 PM