SM-420 Fluid Temp Gauge? Generic Aux. Gauge ?s - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BFoley · 03-05-2016, 11:03 AM

I have a "spare" opening in a new gauge bracket that I just built and was thinking of adding a transmission fluid temp gauge. Would this even be possible without adding a connection point to the transmission? I will be deleting the ammeter, installing a voltmeter in its place and will also be running an oil pressure gauge and vaccuum gauge. Any other ideas for a "4th" gauge?

If interested, pics of the gauge bracket are in my build thread (http://67-72chevytrucks.com/vboard/s...d.php?t=698082).

61K10 · 03-05-2016, 02:07 PM

how about a clock?

Tazimafied · 03-05-2016, 03:26 PM

There are no products out there that offer a temperature gauge that doesn't require some sort of physical connection to your transmission. The wireless technology is out there but it seems no one is using it yet. The easiest way, without compromising the structural integrity of your transmission, would be to purchase an aftermarket aluminum PTO blank off plate and make your connection at the lowest point possible. That should give you the most accurate reading.

BFoley · 03-05-2016, 08:04 PM

Quote:

Originally Posted by Tazimafied

There are no products out there that offer a temperature gauge that doesn't require some sort of physical connection to your transmission. The wireless technology is out there but it seems no one is using it yet. The easiest way, without compromising the structural integrity of your transmission, would be to purchase an aftermarket aluminum PTO blank off plate and make your connection at the lowest point possible. That should give you the most accurate reading.

I will definitely look into this. I have thought about a clock or other gauges but think it would be nice to have a trans oil temp gauge. Thanks for chiming in!

Tazimafied · 03-06-2016, 02:48 AM

Found one from NorthWest Fab that already has a hole drilled and tapped.

http://www.northwestfab.com/NP203205...over_p_47.html

Mount it upside down and make sure the probe end doesn't hit the gears and you are good to go.

BFoley · 03-06-2016, 07:57 PM

Quote:

Originally Posted by Tazimafied

Found one from NorthWest Fab that already has a hole drilled and tapped.

http://www.northwestfab.com/NP203205...over_p_47.html

Mount it upside down and make sure the probe end doesn't hit the gears and you are good to go.

I will be going this route. Thank a bunch for sharing this!

03-05-2016, 11:03 AM	#1
BFoley Registered User Join Date: May 2015 Location: Cedar Rapids, IA Posts: 155	SM-420 Fluid Temp Gauge? Generic Aux. Gauge ?s I have a "spare" opening in a new gauge bracket that I just built and was thinking of adding a transmission fluid temp gauge. Would this even be possible without adding a connection point to the transmission? I will be deleting the ammeter, installing a voltmeter in its place and will also be running an oil pressure gauge and vaccuum gauge. Any other ideas for a "4th" gauge? If interested, pics of the gauge bracket are in my build thread (http://67-72chevytrucks.com/vboard/s...d.php?t=698082). __________________ '66 GMC K25 (305 V6, SM420) aka "Mabel" Link to project http://67-72chevytrucks.com/vboard/s...d.php?t=698082 All gone - '66 CJ5, '69 C25, '69 C25 Camper Special, '79 C10 Big Ten/Bonanza, '84 K10 Silverado

03-05-2016, 02:07 PM	#2
61K10 Registered User Join Date: Feb 2012 Location: pleasant valley--placerville ca Posts: 3,039	Re: SM-420 Fluid Temp Gauge? Generic Aux. Gauge ?s how about a clock? __________________ 1961 chevy K10 my build is------------61K10 build

03-05-2016, 03:26 PM	#3
Tazimafied Registered User Join Date: Feb 2015 Location: Ridgecrest, CA Posts: 94	Re: SM-420 Fluid Temp Gauge? Generic Aux. Gauge ?s There are no products out there that offer a temperature gauge that doesn't require some sort of physical connection to your transmission. The wireless technology is out there but it seems no one is using it yet. The easiest way, without compromising the structural integrity of your transmission, would be to purchase an aftermarket aluminum PTO blank off plate and make your connection at the lowest point possible. That should give you the most accurate reading.

03-06-2016, 02:48 AM	#5
Tazimafied Registered User Join Date: Feb 2015 Location: Ridgecrest, CA Posts: 94	Re: SM-420 Fluid Temp Gauge? Generic Aux. Gauge ?s Found one from NorthWest Fab that already has a hole drilled and tapped. http://www.northwestfab.com/NP203205...over_p_47.html Mount it upside down and make sure the probe end doesn't hit the gears and you are good to go.



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