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I am new to this Forum although not new to Chat as I have been using the 37 - 42 Forum for 10 years. I just purchased a '48 Fleetline Coupe (don't have it in my possession yet) that, while having been restored, does not have turn signals. I have added turn signals to other cars, but I have a question regarding the rear lights on the '48. I do not want to add any auxiliary lights but use the existing ones. As I recall, there are two functions on the existing tail lights; lights (running and parking use same element) and brake lights which use a second element. For the turn signal, do I just tap into one of those elements and if so, which one, or do I have to add a second bulb somehow? I already have a simple switch with wires for; front, rear, left, right, and power so whatever I have to do should not be all that complicated. I imagine I will need more help with this car once I have it at my home and all help will be greatly appreciated. Beamer
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The Mangy Old Mutt
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J.D. is right...I don't know which signal unit your planning on using but if you Google "Signal Stat", they'll supply you with a wiring diagram...At least it will help you get an understanding how all the lights in back get hooked up...
Last edited by kevin47; 09/12/12 12:37 PM.
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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Backyard Mechanic
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Here's a simple diagram which should help. Yes, you use the brake light filament as the turn signal. Good luck!
1936 Low Cab Pickup
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I am new to this Forum although not new to Chat as I have been using the 37 - 42 Forum for 10 years. I just purchased a '48 Fleetline Coupe (don't have it in my possession yet) I imagine I will need more help with this car once I have it at my home and all help will be greatly appreciated. Beamer It'll be fun...And we always have room for one more...smiles
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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Thanks everyone for all your help. It is great to feel accepted into the Forum and I look forward to all your help in the future. I have the wiring diagram but what had me puzzled was doing the physical connection to the correct wire. I have since found the answer and that is to replace the rear sockets with ones having an appropriate number of pigtail wires. I can just tap into the front lights and use the same bulb for both functions, parking light and turn signal. I will replace the rear sockets with ones that have 3 wires which allow the brake light to function as a turn signal and still have a functioning tail light. I knew about these multi-wire sockets but guess I just didn't make the connection of what they were really for (no pun intended). Any comments on this approach?Beamer
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Welcome, and best of luck with the signals project. Just for reference, what model turn signal switch are you installing?
Last edited by Daryl Scott; 09/13/12 01:18 PM.
-Daryl Scott #45848 • 1947 Chevrolet Fleetline Sportmaster Sedan • 1976 Chevrolet C20 Fleetside
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I don't know how many turn sigal switches were available but I beleive the correct switch for the 48 is a Guide 6002,the color should be same as the steering mast"med.dark brown...I have a few of the after market models but finally found the correct switch.I have seen a few Guide 6002's come up on e-bay recently...Going price is between $100.-200.
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What 3 wire socket are you considering? You only need a 2 wire socket for the 1154 bulb. This is for 6 volt. The bulb has 2 contacts at the base and off set tangs for the socket. One wire is the tail light and the other is the brake/turn signal wire. I just added a turn signal I got from The Filling Station. The one with the emergency flashing unit.
1946 Chevy 3100 1/2 Ton Pickup Purchased 11/18/17 Sold 9/20 1948 Chevy Fleetmaster Coupe, Purchased 6/20/2010 1965 Chevy ll 350 Purchased Feb 2021. 3-speed Saginaw Hurst Floor Shifter 3.08 Rear End
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Don't think that you can use your single filament parking light bulb with turn signals. Part #986514 "Self Canceling Turn Signal" in the 1952 Accessories Installation Manual shows the parking light single contact socket replaced with a double contact socket. "Remove parking lamp bulbs, sockets and wires, and replace with those furnished in package"Part #986514 has a seven-wire turn signal switch. < CLICK > Figure 183< CLICK > Complete turn signal installation- Lonnie
1954 3100OLD STUFF ... houses, furniture, cars, wine ... I love it all
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Update to my post -- You might be able to use your single filament parking lights with a turn signal switch. However, you will probably have a hard time finding one. Jesse Hollins patented a Directional Signal System in 1953 that used the existing single filament parking lights. I've never seen a one. Don't know if similar signals were available in 1948. Later patents used double filament bulbs. < CLICK > Hollins 1953 patent #2652553< CLICK > Jesse R. Hollins' family created the Signal-Stat Corporation.Just for kicks and giggles, here is some more trivial turn signal info ... Other signal patents by Jesse Hollins: #2562273, 1951 #2607840, 1952 #2607864, 1952 #2667603, 1954 #2692981, 1954 #2812396, 1954 #2825045, 1958 #2886743, 1959 Patent info available at Google PatentsEarlier switches used separate lamps: John Volker patented a turn signal using separate lamps in 1949 < CLICK > Volker 1949 patent #2458323Joseph Bell patented a turn signal using separate lamps in 1938. < CLICK > Bell 1938 patent #2122508- Lonnie
1954 3100OLD STUFF ... houses, furniture, cars, wine ... I love it all
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Don't think that you can use your single filament parking light bulb with turn signals. Lonnie It can be convenient to do so up front...If you don't mind losing the parking lights...
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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That's just too easy! - Lonnie
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Kieth, Did you just tap into the existing wire harness and splice the turn signal wire to the brake light wire? Beamer
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Keith...What's happening with the turn-signal, when the brakes are being applied...? Or, does the turn-signal only "flash" UNTIL you step on the brakes...?
How's the wiring project coming...? I was still hoping to drive on up to see you, before it starts raining...! Kevin
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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What's happening with the turn-signal, when the brakes are being applied...? Or, does the turn-signal only "flash" UNTIL you step on the brakes...? The turn signals work the same as on a modern car. Check it out. Since the turn signal is part of the brake light, when the turn signal is activated and you step on the brakes, whatever turn signal is flashing keeps on flashing, and the brake light on the opposite side goes on.
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Thanks, J.D. Between your explanation, and Wally's wiring diagram...I can see how that should work. Now, as far as modern goes...My other vehicles stop and turn signals are in different parts of the lens assembly and bulbs entirely...
Last edited by kevin47; 09/14/12 07:34 PM.
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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Modern cars for the dog are in the 1980s or maybe the 90s.
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Guide 6002 directional signals come in various configurations. The correct one for a '48 only has a red light on the face. It does not have the "R" and "L" indicators, which a lot of the 6002 switches have. If you want to see a picture, go to Johnny's website, 1948chevy.com. Under the accessories tab, you'll find Directional signals. The ones I've seen are the lighter color with the painted arm, but I see he has some that are steering column color and some chrome arms.
Dale Carter VCCA #8661 1948 Fleetmaster Convertible 1948 RHD Stylemaster Sedan Delivery 1948 1-Ton Tow Truck 1967 Camaro Coupe
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Why wouldn't a single filament bulb such as in the front parking lights work on the same principle as the stop light filament. That is, when you have the turn signal actuated, that stop light filament then blinks while the other side remains bright. If you had the parking lights on (front) wouldn't the one blink while the other side stayed lit constantly? These lights are not connected to one another. My switch is an aftermarket and is called a 4 wire, two front and two rear, left and right. There is actually a fifth wire that goes to the flasher and thence to the power source. Beamer
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Why wouldn't a single filament bulb such as in the front parking lights work on the same principle as the stop light filament. That is, when you have the turn signal actuated, that stop light filament then blinks while the other side remains bright. If you had the parking lights on (front) wouldn't the one blink while the other side stayed lit constantly? These lights are not connected to one another. Beamer Wait a second your confusing me...lol Now, your telling me there's already power the the single filament bulb and you want it to blink, too. Sounds a lot like what I was talking about before...Why would the brake light begin to "flash", when the brake light circut switch is "closed", as they say. Well, for one, the brake lights aren't hooked up to the front...So, for sure you'll need double-filament bulbs up front...In the rear ( as it's been explained to me ) ...Between the stop-light switch, the dual-filament bulbs and the directional signal, one will stay on , while the other flash's...I suppose because the current is being re-routed...Note: In the diagram, the brake-light switch passes though the directional signal unit before heading off to the corresponding bulb to make this work...Am I making any sense, here...?
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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I have been really confused since the brake light switch entered the picture. I believe I have the front lights figured out. Put in new two-wire sockets and run one wire to the existing parking light wire and the second to the turn signal switch. Pretty simple. As for the rear, my original intent was to replace the two-wire socket with a three wire one and run one wire to the existing brake light wire, one to the existing tail light wire, and the third to the turn signal switch. I would still use the two filament bulb with one filament for the tail light and the other for the brakes and turn signal. Now I see that will not work because the brake light will light up whenever I push on the brake and with a constant hot wire, it doesn't appear as though the turn signal will make that filament blink. True? My turn signal switch is a Pathfinder with one wire for the left side, one wire for the right side, and two wires going to the flasher, hence a 4-wire switch. Power comes from a wire going from the flasher to a fuse holder which will be connected to a hot spot. I hooked up the one I have to lights I am going to use on my 38 and they work fine. Those are separate lights however and are for turn signals only. It appears I need a different switch, one that can be connected to the brake light switch, to be able to use the existing car lights. True?
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True - you need a different turn signal switch (probably seven-wire) to be able to use your brake lights as rear turn signals.
Try to find an original near-date appropriate switch or a good reproduction.
- Lonnie
1954 3100OLD STUFF ... houses, furniture, cars, wine ... I love it all
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If you look back a couple of posts, you'll see THIS is what I've been droning on and on about...In the mean time, I just roll down the window and flail my arm about..Just like in "the good 'o days"...! lol Sorry, beamer I know that's not much help...I've got a Signal-Stat 900, that is seven wire...I'm only about half way getting it hooked up. I've stopped that project temperarally 'cause I've run into another problem...When I turn on the headlights, my brake-lights quit working...! Oh, boy...
If you do a "search", look for those posts about using a "ring of LED lights "stuffed" around the brake-lights ( observe the photo's )...Do you remember reading about that set-up...? They did it that way because otherwise the turn signal light wouldn't be bright enough...The problem there is, we may not have the room to do that...Still, that looks to be one solution to "our" problem...
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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