1969 Grand Prix SJ - Rear End GEAR RATIO Options

I am rebuilding the rear end of my 69 GP model SJ, 428ci w/TH400 automatic.

Does anyone know what gear ratio options there were this year or any resources I could take a look at?

Thanks in advance,

Steve

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Sleep - O
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You could look in a 69 factory shop manual, or if you order PHS documentation you'll get a copy of the 1969 Grand Prix order sheet and that will show it. There is a table in the shop manual that shows what the standard ratio is for every kind of car. I included my shop manual when I sold my 69, so I don't have one now. I just vaguely remember that some of the slow speeds were 3.36, 3.55, 3.90, and 4.30. They didn't use 4.11. You are a lucky man to have a 69 model SJ.

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Joe

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