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Rear differentia

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Old Nov 1, 2020 | 10:34 AM
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Default Rear differentia

Can i crawl under my 1977 and get the letters to find out what I'm running for a rear end. I already know the letters. Just need to know where to look.
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Old Nov 1, 2020 | 11:01 AM
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A cell phone stuck in there to take some pics might be easier.
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Old Nov 1, 2020 | 11:10 AM
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They are on the case flange where mating surface between the case adn cover are on the bottom. You may need to wipe off the paint or rust and crud to read them.
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Old Nov 1, 2020 | 11:13 AM
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upside down

looking up from the bottom
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Old Nov 1, 2020 | 12:50 PM
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Originally Posted by John Hearon
Can i crawl under my 1977 and get the letters to find out what I'm running for a rear end. I already know the letters. Just need to know where to look.
When you say that you want to know what you are running, I assume you mean the ratio. Simply count the number of revolutions that the driveshaft makes to one revolution of the tire. You can do this with the car elevated.
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Old Nov 1, 2020 | 02:17 PM
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I agree with gg521. Those code numbers only tell you what it came with from the factory. Not what somebody might have changed in 40+ yrs.
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