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#7319 01/28/2003 12:56 AM | Joined: Nov 2001 Posts: 128 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2001 Posts: 128 | I am going to fabricate a stainless steel gas tank and install it behind the rear end, under the bed for safety reasons. I need to determine the hole size and pattern for the sending unit, but dont want to put the old one back in. Do they make replacment units for 45 GMC 1/2 tons?? I want to use the orignal gage, but not sure if new units will be compatible? Anyhelp?? | | | | | Joined: May 2001 Posts: 1,904 'Bolter | | 'Bolter Joined: May 2001 Posts: 1,904 | You might just buy the gasket and mark you holes from that.
1948 3/4-Ton 5-Window Flatbed Chevrolet 34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
| | | | | Joined: Nov 2001 Posts: 128 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2001 Posts: 128 | Good idea. I still need to determine if the original unit's are still available. Should I upgrade and install a later version? | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Does anyone know if a 6v negative ground unit can be used in a 6v positive ground vehicle? It seems to me that the polarity should not matter relative to the way a sending unit works. Is your vehicle 6v positive ground? Formula1, if the answer to the above is "yes", I have information on a 6v universal unit. It is a sending unit only (the fuel feed would be through a separate line). If you want more information, please email me. lederman@siena.edu Tim | | | | | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | Originally posted by tclederman:
Does anyone know if a 6v negative ground unit can be used in a 6v positive ground vehicle? It seems to me that the polarity should not matter relative to the way a sending unit works. A resistor doesn't care which way current flows through it. It simply reduces the voltage. Any GM 6 volt sending unit from this era should work. If you really want to check, put a good ohm-meter across the senders and compare.
Fred
52 3600
69 C-10
| | | | | Joined: Feb 2000 Posts: 5,216 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 5,216 | I bought one of these Universal sender from Yogi's Streetrod parts. It works great with my home made tank and original 6 volt gauge. They also have a good selection of tank parts and fittings. Most of the senders are all five hole mount. The five holes are not evenly spaced so you need to know where the float will go. It should swing to the side and not front to back. Also need to know left or right as some of the senders are fixed. The one above was totally adjustable. Don't forget to add some bulkheads or baffles in the tank. They will keep fuel from splashing around and let the sender read accurate. When adding the vent hole or tube, make sure it is in the highest end. Mine was not, and fuel would run out if the service station was not level. I ended up with 3 feet of 3/16" steel line tightly coiled up to the under side of the bed and a drain hose off the end of the coil. Joe | | | | | Joined: Nov 2001 Posts: 128 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2001 Posts: 128 | JOe,
Thanks for responding to my posting on stovebolt. I checked out the site on the universal sender, and there are 5 or 6 different ones available. How do i know which one to get?? If I change over to a 12 volt system will this change things?? | | |
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