The 1947 - Present Chevrolet & GMC Truck Message Board Network - Fuel sender question: What year did they change ohm?

The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)

- The 1960 - 1966 Chevrolet & GMC Pickups Message Board (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=6)

- - Fuel sender question: What year did they change ohm? (https://67-72chevytrucks.com/vboard/showthread.php?t=749623)

Brad54

10-31-2017 07:51 PM

Fuel sender question: What year did they change ohm?

Like the title says, what year did Chevy trucks change the ohms for their fuel senders/gauges?

I've got a buddy who restores gauges for a living, and he said it was '65... but I've not heard of anybody having a problem putting a '64 instrument cluster into a '65-66 truck, or vise-versa.

-Brad

ray_mcavoy

10-31-2017 08:40 PM

Re: Fuel sender question: What year did they change ohm?

GM cars did change from 30 to 90Ω fuel sending units in '65 so your buddy is correct when it comes to cars.

GM trucks, however, didn't change until '67. So that's why there are no issues swapping instrument clusters between '64/65 and '66 trucks.

vin63

10-31-2017 10:15 PM

Re: Fuel sender question: What year did they change ohm?

For the C10, it was the 1967 model year that went to 0-90 ohm operation.

All times are GMT -4. The time now is 10:47 AM.