Help with differential code

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January 17th, 2011, 10:08 AM

#1

frasco

1970 Cutlass Convertible

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Join Date: Jun 2010

Location: St Louis MO

Posts: 70

Help with differential code

I have what I believe to be an unaltered 1970 Cutlass S with a code P2 stamped into the rear differential...

I cant seem to locate a sheet that explains what this means?

Any help would be great

--Scott

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Old

January 17th, 2011, 10:24 AM

#2

2blu442

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Location: Medford, Oregon

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Hi Scott
My reference doesn't show a P2 but does have an R2. If that's what you've got then its a 2.56 open rear end. They were common highway gears during that era. John

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January 17th, 2011, 04:31 PM

#3

507OLDS

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Like he said,I think it probably says R2,and maybe the leg of the "R" is not very visible

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January 18th, 2011, 12:21 AM

#4

svnt442

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Look at the left column top row. This is from a 1970 chassis service manual. Just a conformation of what was already stated.

misc.jpg

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