I have a chance to buy a complete Buick Lasabre, 3.8 n/a with 4T60 trans. The vin number is 1G4HP5313N475681. Does the vin tell the year and the final drive ratio? It's supposed to be a '90 or '91. How DO you tell the final drive ratio?
[This message has been edited by raysr11 (edited 07-01-2014).]