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March 14th, 2007, 10:36 PM
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#1 (permalink) |
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Registered User
Join Date: Mar 2007
Posts: 61
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What rear end gear-87 Cutlass
I just bought a parts car 87 or 88 RWD Cutlass Supreme, 307 engine and 4 speed auto 200-4R Trans. Has LIMITED SLIP LUBE TAG STILL ON ONE OF THE COVER BOLTS. What possible gear ratio is this?
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March 15th, 2007, 02:02 AM
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#2 (permalink) |
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Registered User
Join Date: Feb 2007
Posts: 209
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Hi. There are a few possibilities. At the back diff cover, left side center, will be a flat spot on the axle housing itself. Look for a 3 didget code. First two will be 6B, for 7 1/2", 7k for 8 1/2" third will be another letter. Let me know the third letter, and I can figure your ratio. Let us know. Jim.
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