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Old 03-11-2021, 08:45 PM   #1
kens65fb
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How do you to convert a 67-72 fuel sender to work for 60-66

I recently purchased aftermarket gauges for my 1964 C10.

The fuel gauge is set up for a 90 OHM sender.

The 60-66 sender is 30 ohms.

I know that the 67-72 sender is 90 OHMS, and look very similiar, but the sender installs differently.

Has anyone modded a 67-72 unit to work in a 60-66 tank?
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Old 03-11-2021, 10:05 PM   #2
jayoldschool
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Re: How do you to convert a 67-72 fuel sender to work for 60-66

Use a 67-72 tank.
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Old 03-12-2021, 08:52 AM   #3
kens65fb
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Re: How do you to convert a 67-72 fuel sender to work for 60-66

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Originally Posted by jayoldschool View Post
Use a 67-72 tank.
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Old 03-12-2021, 10:56 AM   #4
jayoldschool
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Re: How do you to convert a 67-72 fuel sender to work for 60-66

Of course, the alternative is to get the two senders side by side, and look at the angles of the sender flange, and the line differences. Easy to mod the in cab line to mate to the later sender if needed. Third option is to get a later sender and just take the pot/float arm and use it on the early assembly.
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Old 03-12-2021, 12:23 PM   #5
kens65fb
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Re: How do you to convert a 67-72 fuel sender to work for 60-66

The senders install differently.

The 60-66 uses a 5 screw flange, the 67-72 flange twists into the tank.
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Old 03-12-2021, 01:23 PM   #6
cwcarpenter98
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Re: How do you to convert a 67-72 fuel sender to work for 60-66

Could you swap out the pivot point for the float? That might be the easiest way if it's doable
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1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive
Overdrive wiring here
1963-ish truck bed trailer - Half-Wit

1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed

1995 Dodge Dakota Sport

"I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson
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Old 03-12-2021, 01:28 PM   #7
ffshrek
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Re: How do you to convert a 67-72 fuel sender to work for 60-66

I put a 47 ohm resistor between the post to the guage wire and ground. Works good.
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Old 03-12-2021, 01:53 PM   #8
cwcarpenter98
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Re: How do you to convert a 67-72 fuel sender to work for 60-66

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Originally Posted by ffshrek View Post
I put a 47 ohm resistor between the post to the guage wire and ground. Works good.
Is what you did going from 90 sender to 30 gauge?

OP needs to go from 30 sender to 90 gauge. I don't know enough about resistors and wiring stuff to know if there's a difference there
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Christian Carpenter

1963 C10 - Frankentruck 283, Muncie 3 speed with overdrive
Overdrive wiring here
1963-ish truck bed trailer - Half-Wit

1981 C10 - Penny 305, th350 --> Soon to be 350, Saginaw 4 speed

1995 Dodge Dakota Sport

"I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson
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Old 03-13-2021, 07:37 AM   #9
ffshrek
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Quote:
Originally Posted by cwcarpenter98 View Post
Is what you did going from 90 sender to 30 gauge?

OP needs to go from 30 sender to 90 gauge. I don't know enough about resistors and wiring stuff to know if there's a difference there
Sorry, I misread the post. I am going from a 90 sending unit to a 30 guage
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Old 03-13-2021, 11:17 AM   #10
AcampoDave
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Re: How do you to convert a 67-72 fuel sender to work for 60-66

You can get a nice universal sender from Tanks Inc. You have to do a bIt of measuring and a little cutting but they work fine if you follow the directions.
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