The Stovebolt.com Forums Home | Tech Tips | Gallery | FAQ | Events | Features | Search
Help is a click away!

VEHICLE
INFORMATION
KITS


at the

GM Heritage Center
All the details are here.

Searching the Site - a click away
click here to search
New here ??? Where to start?
Click on image for the lowdown. Where do I go around here?
====
Who's Online Now
4 members (TUTS 59, Shof, Ponchogl, Jon G), 172 guests, and 3 robots.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums66
Topics128,094
Posts1,056,157
Members48,436
Most Online14,466
Apr 26th, 2026
Step-by-step instructions for pictures in the forums
Brad Allen's photos

AD Chevy Trucks

Pictures galore
Over 6,000 pictures

Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips.

Check them out!

Lots of work on Brad's part ... pure enjoyment (and references) for you!

Big Thanks!

THANKS!

For helping keep this great
old truck web site
on the Internet for

over 30 years!

and not clogged down
with Ads!


Again, thanks!

Previous Thread
Next Thread
Print Thread
Joined: Sep 2005
Posts: 23
N
Junior Member
Junior Member
N Offline
Joined: Sep 2005
Posts: 23
I have a 48 Loadmaster 1 1/2 that is now up and running. I reciently replaced the Master Cylinder, Flexable brake Lines(2) on the front and the one on the rear plus the two front wheel cylinders on this truck. When I replaced the Master Cylinder I did not see any wiring harness or switch that would operate the brake lights when the peddel was applied.
I would like to add that this truck has only one tail light on the driver side but it has a turn signal accessory mounted on the Coloum. The wires running from the frame to the rear are orginal Bare wire and are not connected to anything. so much for color cordination.

P.S. I did not Bench bleed the MC I installed it and used a vacume hose and a coke bottle to bleed my brake system. By keeping the bottle half full of fluid, I was able to push out the dirty fluid out of the lines. By keeping the MC full I could push out ALL the old fluid and Air out of the system, which NOW works! :p


You thought I drove a Ford! Where is my cresent wrench, I would like to adjust your thought pattern.
Joined: May 2005
Posts: 314
I
Shop Shark
Shop Shark
I Offline
Joined: May 2005
Posts: 314
The brake light switch is mounted to the firewall.


IRWIPI 2005 Peoples Choice
Inky,
"It's not that I haven't done IT... It's that I haven't done IT yet."

--------------------
'48 1-1/2 ton Dump
'57 Chevy Panel
'59 Chevy 2 ton Dump
Joined: Jul 2004
Posts: 5,708
A
'Bolter
'Bolter
A Offline
Joined: Jul 2004
Posts: 5,708
N D Loadmaster,
I think InkyO5 meant It's "suppose" to be on the firewall..maybe it fell off and the PO didn't think it important to let other folks know he was putting his brakes on. It is a funny looking mechanical switch under the toeboard. The brake pedal arm hits it as you apply the binders. I would like to see a picture of your Loadmaster.


Stuart.

Joined: Sep 2005
Posts: 23
N
Junior Member
Junior Member
N Offline
Joined: Sep 2005
Posts: 23
I am a little embarrased to list a photo of the truck at this point. My wife ask me if Rust was a color option in "48" I will see if I can get one posted in the next week.
FYI I had to take the hood off because the brackets that bolt to the hood rusted out. This made it easer to work under the hood. I got to figure out this one by winter or I will have snow in the motor compartment.

Thanks for the input


You thought I drove a Ford! Where is my cresent wrench, I would like to adjust your thought pattern.
Joined: Feb 2000
Posts: 587
G
'Bolter
'Bolter
G Offline
Joined: Feb 2000
Posts: 587
If you have only One light, you won't have signals! You would need to buy two more and mount one each side for signals only. OR....another taillight/stop for other side AND still need signal lights, Unless your turn switch has seven wires. On those the one wire from signal switch goes to the brake switch, under floor toe pan as said. It's real simple switch, with arm that gets held in "off" by the brake pedal arm, then springs to "on" when you push them away from the floor/switch area.
Whenever I get old truck, I buy one of those $25 or so trailer kits with two lights, side markers and wires. I also get some of that corrugated split harness tube to run it in. Use zip ties or metal or plastic clamps to bolt to side of frame, on inside. There are lots of holes to use. OR, can zip tie it to the brake or fuel lines running in same area also. I keep the trailer connector on and all. Run it up the engine bay area and go off of it with the smaller length mating connector to run to the fusebox and switchs. Works good everytime! Keep the Yellow and Green on correct sides like instructions, and you'll be all set. There is a place on-line for signal wiring diagrams, but I"m not sure address. Anyone? Should be some notes in the past, do a search here for them.

Rusty hood hinges??? Rust way up there??? Wow, how bad is the rest of this rig?? That's a new rust area to me. Usually the cowl is bad, but lower on sides.


G.L. Grumpy's
Old Iron Ranch
Huntington, IN 46750


MM R tractor, Speedex
and Power King tractors
Joined: Apr 2005
Posts: 926
S
Shop Shark
Shop Shark
S Offline
Joined: Apr 2005
Posts: 926
Try Google,typing in "signal stat wiring" there's some diagrams there that tell how the add on kits hook up.
speed
PS-it's fairly common for the old stop light switch to be disconnected,due to the tendency,once worn over years'time,for the stoplights to stay on and run the battery down. That was the case on my '57 GMc;I hooked it up and it worked great until the next heavy rain,then the battery went dead. finally tracked it down to the stoplight switch getting wet and the contacts inside bridged during the night,running the battery down. I recently changed it over to a micro-switch;it's weather-proof.
Speed


1954 GMC 350
1957 GMC 1/2 ton
1962 Chevy C-30
1952 Chevy 6400 dump bed project truck
'98 Harley FLSTC
'66 Pontiac Catalina
'76 Chevy 1 ton Duallie
'84 Bronco II
'78 Dodge W-200
'81 Toyota 4X4 truck
Joined: Sep 2005
Posts: 23
N
Junior Member
Junior Member
N Offline
Joined: Sep 2005
Posts: 23
THANKS FOR THE WIREING DIAGRAM! I will be heading to town for replacement wire today. I will let you know how it turns out.
I see where the switch is mounted on the fire wall for the brakes. It was hanging on by the wires in the engine compartment.


You thought I drove a Ford! Where is my cresent wrench, I would like to adjust your thought pattern.

Moderated by  69Cuda, Super55 

Link Copied to Clipboard
Home | FAQ | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Powered by UBB.threads™ PHP Forum Software 8.0.0