seats/mercury switch - The 1947 - Present Chevrolet & GMC Truck Message Board Network

northerngmc · 12-07-2005, 12:35 PM

I was talking with a friend this past weekend about installing new style seats into my old truck.

I told him I have found manual seats from a 2003 Chev truck and then I would not have to worry about running power to them. (I am the only one who drives my truck, so why would I want to adjust the seat!).

He then asks me if my seats have mercury switches on them for the shoulder belts? I say WHAT!

He then explains that on his new F()rd truck the shoulder belts do not have any kind of a gravity ratchet to stop the belt from coming out during an accident and that they have a mercury switch built in, that on impact locks the shoulder belts in place.

As anybody ran into this problem (pun not intended).

northerngmc · 12-07-2005, 06:50 PM

Nobody willing to touch mercury?

**kwmech** · 12-08-2005, 11:23 AM

Nah just never heard of that. Sounds like money the factory probably wouldn't spend

Chrome8 · 12-10-2005, 12:12 AM

Put em in man, the manual seats don't need power other than to turn on the seat belt light, which you don't have so.....Id like to know how the install goes, it sounds like a good way to go to me. I like those seats.

smbrouss70 · 12-10-2005, 01:45 AM

I have a set of seats from a 2000 silverado in my truck. They have inertia locks for the seat belt, no mercury to play with. The seats are a little snug in a truck, if you're over 6 foot it probably won't be overly comfortable for you.

BubbaGreen · 12-10-2005, 10:48 AM

usually a pendulum switch, not mercury, but the same principle applies. Some of the newer seats interface with the onboard computer ( I know newer model dodge seats do this) Its not a big deal, but you may need a schmatic of the seats/yr truck of the donor. Some seats lock the belts until you apply power, then in the event of an impact, that power is cut via the pendulum switch, locking the belts. This is usually a box mounted under the seat somewhere with a bunch of wires. If you do end up with this type, make sure after you have your seats in, that box is level, or it may not work correctly. Of course, thats also assuming its wired correctly.

12-07-2005, 12:35 PM	#1
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	seats/mercury switch I was talking with a friend this past weekend about installing new style seats into my old truck. I told him I have found manual seats from a 2003 Chev truck and then I would not have to worry about running power to them. (I am the only one who drives my truck, so why would I want to adjust the seat!). He then asks me if my seats have mercury switches on them for the shoulder belts? I say WHAT! He then explains that on his new F()rd truck the shoulder belts do not have any kind of a gravity ratchet to stop the belt from coming out during an accident and that they have a mercury switch built in, that on impact locks the shoulder belts in place. As anybody ran into this problem (pun not intended). __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

12-07-2005, 06:50 PM	#2
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Re: seats/mercury switch Nobody willing to touch mercury? __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

12-08-2005, 11:23 AM	#3
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,641	Re: seats/mercury switch Nah just never heard of that. Sounds like money the factory probably wouldn't spend

12-10-2005, 12:12 AM	#4
Chrome8 Registered User Join Date: Nov 2005 Location: Park Rapids, MN Posts: 288	Re: seats/mercury switch Put em in man, the manual seats don't need power other than to turn on the seat belt light, which you don't have so.....Id like to know how the install goes, it sounds like a good way to go to me. I like those seats. __________________ 1969 K20 not running, complete but rusty with wrecker boom and push bumper 1969 GMC C20 un-molested rust free original paint "a 4 eyed girl named 'Tina" 1971 Chev K20 4X4 Box Delete Commercial Truck Flatbed "Choose a job you love, and you will never have to work a day in your life." Confucius

12-10-2005, 01:45 AM	#5
smbrouss70 Registered User Join Date: Sep 2003 Location: Rayne, LA Posts: 2,781	Re: seats/mercury switch I have a set of seats from a 2000 silverado in my truck. They have inertia locks for the seat belt, no mercury to play with. The seats are a little snug in a truck, if you're over 6 foot it probably won't be overly comfortable for you. __________________ Steven "If dogs don't go to heaven, when I die I want to go wherever they went." -- Will Rogers R.I.P. Oscar R.I.P. Ratchet 1967 Pontiac GTO - Dad was the Original Owner 1970 Chevy 2wd SWB "Oscar's Truck" 1970 Chevy 2wd Blazer "Ratchet's Blazer" 2013 Chevy 2500HD Crew Cab Duramax/Allison Z71 LTZ "Brown Sugar" 2017 Chevy Suburban "BDB" 2020 Chevy Blazer Premier "Foxy" Member of Louisiana Classic Truck Club (LCTC) Shop Build

12-10-2005, 10:48 AM	#6
BubbaGreen Senior Member Join Date: Mar 2001 Location: Cedar Park, TX Posts: 686	Re: seats/mercury switch usually a pendulum switch, not mercury, but the same principle applies. Some of the newer seats interface with the onboard computer ( I know newer model dodge seats do this) Its not a big deal, but you may need a schmatic of the seats/yr truck of the donor. Some seats lock the belts until you apply power, then in the event of an impact, that power is cut via the pendulum switch, locking the belts. This is usually a box mounted under the seat somewhere with a bunch of wires. If you do end up with this type, make sure after you have your seats in, that box is level, or it may not work correctly. Of course, thats also assuming its wired correctly. __________________ 71 Chevy C-10 SWB Fleetside RamJet-350/4L60e & Compushift/3.73Posi See it at www.prismnet.com/~grzanich



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