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June 24th, 2009, 07:29 PM
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#1 (permalink) |
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olds..older..oldest
Join Date: Apr 2009
Location: Ontario, Canada
Posts: 276
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tire size/rear end formula ?
 My 69 442 has 27" rear tires and a 3.23 rear end.Got excellent cruising and mileage but not much speed out of the hole. Joe P. on a recent thread on tire size stated that the writer's large{30"] tires reduced his rear end ratio by 13%. Is there a formula that one can use to establish a "true" rear end ratio? eg. ...a tire this size reduces your rear from 4.18 to 3.42? I want to keep my rim/tire combo and end up with a 3.42.Thanks....Derek |
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June 25th, 2009, 04:02 AM
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#2 (permalink) |
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Registered User
Join Date: Sep 2007
Location: New Hampshire
Posts: 172
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Try this, I'm not sure if it is what you are after but it may help.
http://www.richmondgear.com/streetcalculators.html http://classicoldsmobile.com/forums/...ifference.html
__________________
 Dave1974 Olds Omega S (Who Cares about MPG) 1999 HD Road King Classic (50 MPG) 2001 Monte Carlo SS (25 MPG) 2004 Silverado 2500HD 4x4 Crew Cab (10.5 MPG) 2001 Oldsmobile Intrigue www.sdcookman.com |
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