New to board--Neutral-Safety/BU light question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

roden001 · 03-29-2004, 04:03 PM

Hey guys, I've really been helped out by reading this board for a while.

I'm in Northport, AL, and I have a 68 C-10 swb, 350 4-bolt, TH400. When I bought the truck, the backup lights weren't hooked up. I bought a NS/BU switch at Advance, and I found what I think is the place to install it on the column (at the base near the firewall). However, it's not obvious to me how to mount this thing, get it matched up with the shifter, and get it wired.

Anyone have any experience in this area?

Thanks in advance.

Putter · 03-29-2004, 04:15 PM

Nope, but welcome from Central Mississippi, anyway.

neonlarry · 03-29-2004, 08:52 PM

On the top side of the steering column under the dash close to where it goes through the firewall there is a slot that the switch mounts in. Put the switch (black tab on the inside of the half moon) in the center put shifter in neutral put switch into slot (metal tabs or ears facing toward steering wheel). You might have to move it from side to side a little until the switch seats all the way. there should be two screw holes in the column under the metal ears screw it on but don't tighten all the way, you may need the adjust the switch position a little so the it cuts off when the shift lever is in gear and makes contact when in park or neutral.

FRENCHBLUE72 · 03-29-2004, 10:05 PM

Sound's like neon has sone good direction's for ya welcome to the board from southen oregon..

roden001 · 03-30-2004, 01:50 AM

Thanks for the welcome and the advice. It looks like my part doesn't match up just right, and I'll be waiting till wed or thurs for shipment of another. I'll let you know how it works out. When I get myself a digital camera (hopefully soon) I'll post some pics of the truck.
Thanks again, fellas.

roden001 · 04-01-2004, 08:50 PM

Got the part in, and everything fell into place. Works like a charm. Thanks, Larry--I'd never have known to order a new part without your advice.

Blue Beard · 04-01-2004, 10:52 PM

Welcome from SW Washington State.....

Mountain Man · 04-04-2004, 11:09 PM

Refering to the picture in this post -

Are two of the wire terminals on the right for the Neutral safety switch, and the other two on the left are for the back up light switch?

I was wiring my 72 today with the Painless harness and this step was not very clear.

roden001 · 04-05-2004, 12:44 AM

On the part I received from Chevy Duty, one pair had prongs that were parallel to one another, and the other had prongs that were perpendicular to one another. The ones that were for the backup lights were the perpendicular ones.
If you want to be sure about your particular part, just slide the tab to the center position, check to see which set of prongs has a complete circuit, and that's your neutral safety prongs---one click to the left should complete the circuit for the other pair, since that is 'reverse' in the shifting order.
If you don't know how to test the circuit, just set your multimeter to 'Ohms,' (the one with the speaker symbol is easiest, since the tester will buzz if the circuit is completed), and put the red lead to one of the prongs, and the black lead to the other prong within the same pair. If the tester buzzes, the circuit is complete. Does that make sense?

**Palf70Step** · 04-05-2004, 06:35 AM

Welcome from the south end of Mississippi.

03-29-2004, 04:03 PM	#1
roden001 Registered User Join Date: Jan 2004 Posts: 24	New to board--Neutral-Safety/BU light question Hey guys, I've really been helped out by reading this board for a while. I'm in Northport, AL, and I have a 68 C-10 swb, 350 4-bolt, TH400. When I bought the truck, the backup lights weren't hooked up. I bought a NS/BU switch at Advance, and I found what I think is the place to install it on the column (at the base near the firewall). However, it's not obvious to me how to mount this thing, get it matched up with the shifter, and get it wired. Anyone have any experience in this area? Thanks in advance.

03-29-2004, 04:15 PM	#2
Putter More Cowbell.... Join Date: Mar 2004 Location: Puckett, MS Posts: 3,569	Nope, but welcome from Central Mississippi, anyway. __________________ *There once was a member from Puckett.....Who ( fill in the blank blank blank* ) bucket**

03-29-2004, 08:52 PM	#3
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,745	On the top side of the steering column under the dash close to where it goes through the firewall there is a slot that the switch mounts in. Put the switch (black tab on the inside of the half moon) in the center put shifter in neutral put switch into slot (metal tabs or ears facing toward steering wheel). You might have to move it from side to side a little until the switch seats all the way. there should be two screw holes in the column under the metal ears screw it on but don't tighten all the way, you may need the adjust the switch position a little so the it cuts off when the shift lever is in gear and makes contact when in park or neutral. Attached Images __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

03-29-2004, 10:05 PM	#4
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,606	Sound's like neon has sone good direction's for ya welcome to the board from southen oregon.. __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

04-01-2004, 10:52 PM	#7
Blue Beard Registered User Join Date: Jan 2003 Location: Washington State Posts: 8,831	Welcome from SW Washington State..... __________________ 1970 Chev CST 2003 Harley Fatboy 1975 Chevrolet Step Van 1956 Chev Bel Air 1977 Blazer 2WD For Sale $3000.00 1978 Blazer 2WD For Sale $7000.00 1978 Silverado 2005 Monte Carlo

03-30-2004, 01:50 AM	#5
roden001 Registered User Join Date: Jan 2004 Posts: 24	Thanks for the welcome and the advice. It looks like my part doesn't match up just right, and I'll be waiting till wed or thurs for shipment of another. I'll let you know how it works out. When I get myself a digital camera (hopefully soon) I'll post some pics of the truck. Thanks again, fellas.

04-01-2004, 08:50 PM	#6
roden001 Registered User Join Date: Jan 2004 Posts: 24	Got the part in, and everything fell into place. Works like a charm. Thanks, Larry--I'd never have known to order a new part without your advice.

04-04-2004, 11:09 PM	#8
Mountain Man Registered User Join Date: Jan 2002 Location: Calgary, Alberta, Canada Posts: 451	Refering to the picture in this post - Are two of the wire terminals on the right for the Neutral safety switch, and the other two on the left are for the back up light switch? I was wiring my 72 today with the Painless harness and this step was not very clear. __________________ 72 C10 Cheyenne Super Full trim Factory tach dash A/C dash Factory tilt 350 / 350 power train - with Edelbrock components.

04-05-2004, 12:44 AM	#9
roden001 Registered User Join Date: Jan 2004 Posts: 24	On the part I received from Chevy Duty, one pair had prongs that were parallel to one another, and the other had prongs that were perpendicular to one another. The ones that were for the backup lights were the perpendicular ones. If you want to be sure about your particular part, just slide the tab to the center position, check to see which set of prongs has a complete circuit, and that's your neutral safety prongs---one click to the left should complete the circuit for the other pair, since that is 'reverse' in the shifting order. If you don't know how to test the circuit, just set your multimeter to 'Ohms,' (the one with the speaker symbol is easiest, since the tester will buzz if the circuit is completed), and put the red lead to one of the prongs, and the black lead to the other prong within the same pair. If the tester buzzes, the circuit is complete. Does that make sense?

04-05-2004, 06:35 AM	#10
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,349	Welcome from the south end of Mississippi. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!



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