57 Olds 88 Differential ratio

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Jan 11, 2018 | 09:26 PM

OLDSter Ralph

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Joined: Sep 2017

Posts: 5,209

From: St. Paul Minnesota

57 Olds 88 Differential ratio

Does anyone know what differential ratio was used in '57 Olds "88" with automatic ?

Jan 12, 2018 | 06:04 AM

okie88

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Joined: Nov 2008

Posts: 267

From: Oklahoma City

The options were 3.08(code 0), 3.23(code 9), 3.42(code 8), and 3.64(code 6)

Jan 12, 2018 | 03:27 PM

Yellowstatue

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Joined: Jan 2009

Posts: 4,086

From: Too close to Toronto!!

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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