regular water temp gauge for trans temp. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

69Beauty · 04-29-2013, 05:17 PM

Planning on filling the vacant hole in my cluster (vacuum) with another temperature gauge and would like to use a sender in my transmission to monitor that. my problem is that the gauge has a specific resistance (300-55) or somehting like that and the hole in my trans pan is for 1/8 thread so i cant use a cylinder head sender so i wanna know if you know of a sender thats 1/8 and has same resistance as factory water temp. or a sender that is close and i could put an inline resistor to make it work... any help is appreciated.

JimKshortstep4x4 · 04-29-2013, 08:01 PM

My local NAPA was able to cross reference sending units to match the resistance range needed on the dash gauge. Whether they have the right one with the thread you want may be the issue. If you have the pan off you can braze in the proper size nut for the original sending unit.

A temperature gauge for the transmission migh be useful. Good luck on your project.

Jim

yuccales · 04-29-2013, 08:50 PM

Maybe mount the sender between the trans cooler (inlet side) and the trans line. Use a piece of tubing with the proper flare fittings welded to the ends, weld the correct bung for the sender your going to use on to the tubing. Weld a mount to the tube also. You could mount it under the battery tray. Also if you are good with plastic and have an extra cluster lens, you could cut out the word "temperature" with a hole saw, and use it in place of the empty vac hole. Look forward to seeing what you do.

69Beauty · 04-30-2013, 09:55 AM

thanks for the help but the pan is already installed and has a already welded in fitting for an 1/8 sending unit and i just put brand new copper lines on my transmission so i dont wanna have to mess with those again. anybody else have an idea?

MARKDTN · 04-30-2013, 10:30 AM

Look at one for an 84 Corvette oil temperature and see if it is the right resistance.

kehstr · 12-12-2015, 10:30 PM

Do you have pictures of this?

70chev20 · 07-28-2016, 03:01 PM

I want to do this as well, I have heard that the auto meter 2385 sender will be close.

Racer382D · 07-28-2016, 03:45 PM

Quote:

Originally Posted by 69Beauty

thanks for the help but the pan is already installed and has a already welded in fitting for an 1/8 sending unit and i just put brand new copper lines on my transmission so i dont wanna have to mess with those again. anybody else have an idea?

You can make it work, and should be able to adapt about anything to 1/8th pipe but I would get rid of those copper trans lines ASAP!

04-29-2013, 05:17 PM	#1
69Beauty Registered User Join Date: Aug 2010 Location: North Dakota Posts: 279	regular water temp gauge for trans temp. Planning on filling the vacant hole in my cluster (vacuum) with another temperature gauge and would like to use a sender in my transmission to monitor that. my problem is that the gauge has a specific resistance (300-55) or somehting like that and the hole in my trans pan is for 1/8 thread so i cant use a cylinder head sender so i wanna know if you know of a sender thats 1/8 and has same resistance as factory water temp. or a sender that is close and i could put an inline resistor to make it work... any help is appreciated. __________________ 1969 C-10 LWB 388 SBC Vortec Heads 10:1 Lunati 60103 cam Weiand intake Quadrajet Carb 12 Bolt 3:73 posi 700r4 Hedman Headers 1998 Dodge Ram 1500 Reg. Cab Long Box 4X4 5.9L 183k miles 1956 Ford F-100 Longbed with Original 272 and 3OTT 1995 C1500 ECSB 6.5 Diesel 4l80e (Camper puller) 1997 Dodge 3/4 ECLB V10 (MPG machine)

04-29-2013, 08:01 PM	#2
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Re: regular water temp gauge for trans temp. My local NAPA was able to cross reference sending units to match the resistance range needed on the dash gauge. Whether they have the right one with the thread you want may be the issue. If you have the pan off you can braze in the proper size nut for the original sending unit. A temperature gauge for the transmission migh be useful. Good luck on your project. Jim __________________ 1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC

04-29-2013, 08:50 PM	#3
yuccales Registered User Join Date: May 2011 Location: Northern Calif. Posts: 3,748	Re: regular water temp gauge for trans temp. Maybe mount the sender between the trans cooler (inlet side) and the trans line. Use a piece of tubing with the proper flare fittings welded to the ends, weld the correct bung for the sender your going to use on to the tubing. Weld a mount to the tube also. You could mount it under the battery tray. Also if you are good with plastic and have an extra cluster lens, you could cut out the word "temperature" with a hole saw, and use it in place of the empty vac hole. Look forward to seeing what you do.

04-30-2013, 09:55 AM	#4
69Beauty Registered User Join Date: Aug 2010 Location: North Dakota Posts: 279	Re: regular water temp gauge for trans temp. thanks for the help but the pan is already installed and has a already welded in fitting for an 1/8 sending unit and i just put brand new copper lines on my transmission so i dont wanna have to mess with those again. anybody else have an idea? __________________ 1969 C-10 LWB 388 SBC Vortec Heads 10:1 Lunati 60103 cam Weiand intake Quadrajet Carb 12 Bolt 3:73 posi 700r4 Hedman Headers 1998 Dodge Ram 1500 Reg. Cab Long Box 4X4 5.9L 183k miles 1956 Ford F-100 Longbed with Original 272 and 3OTT 1995 C1500 ECSB 6.5 Diesel 4l80e (Camper puller) 1997 Dodge 3/4 ECLB V10 (MPG machine)

04-30-2013, 10:30 AM	#5
MARKDTN Registered User Join Date: Jan 2011 Location: Chattanooga, TN Posts: 2,159	Re: regular water temp gauge for trans temp. Look at one for an 84 Corvette oil temperature and see if it is the right resistance. __________________ '83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project

12-12-2015, 10:30 PM	#6
kehstr Registered User Join Date: Mar 2015 Location: Utah Posts: 750	Re: regular water temp gauge for trans temp. Do you have pictures of this?

07-28-2016, 03:01 PM	#7
70chev20 Registered User Join Date: Jul 2013 Location: Denver, CO Posts: 18	Re: regular water temp gauge for trans temp. I want to do this as well, I have heard that the auto meter 2385 sender will be close.



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