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Mod | | | Forums66 Topics128,095 Posts1,056,075 Members48,433 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Sep 2015 Posts: 6 New Guy | | New Guy Joined: Sep 2015 Posts: 6 | I have a 1958 Chevy 3100 it has a 350 Chevy engine. I recently replaced the original instrument cluster with one from Classic industries- part CX1963 - , it works with an electrical temperature gauge, however the sending unit in the engine is bad (I have confirmed this). After reading article after article I am more confused than ever. What is a good sending unit to use (where can I purchase a new one) for the combination I have? | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | If it is an aftermarket gauge you will need a sender to match the gauge. Check with the manufactor. If it is a factory gauge you can get the sender from any parts store. They used the same one for many years through the 50's 60's & early 70's. Make sure you get one for a gauge & not a light.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: May 2005 Posts: 1,624 Shop Shark | | Shop Shark Joined: May 2005 Posts: 1,624 | Good luck picking one up at your FLAPS. Those guys will ask for make and model, not your resistance vs pressure profile. I had to test my gauge with a variable resistor to get the resistance range of the gauge. Then I searched high and low for someone who could tell me what a sender was resistance wise at a certain pressure, it is not written on any box I looked at. Finally found one for a jeep that worked after I added a tad of series resistance to get the gauge to read spot on.
Wrenchbender is correct. The manufacturer should tell you what sender to use or sell it to you in a plain white box with big markup.
Last edited by beltfed; 09/13/2016 11:46 PM.
Six volt guy living in a twelve volt world
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