Vintage Oldsmobiles Curved Dash, Limited Touring, Models 40, 53, 66; Series 60, 70, 90

57 Olds 88 Differential ratio

Old January 11th, 2018, 09:26 PM
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57 Olds 88 Differential ratio

Does anyone know what differential ratio was used in '57 Olds "88" with automatic ?
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Old January 12th, 2018, 06:04 AM
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The options were 3.08(code 0), 3.23(code 9), 3.42(code 8), and 3.64(code 6)
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Old January 12th, 2018, 03:27 PM
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There is a number stamped on the forward facing part of the housing on the passenger side. An eight or nine or seven etc. The chassis manual gives the ratios for the stamped number.
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