1967 Buick Electra 225 Custom

[Schroyer]

I am trying to find what rear end came in this Buick Electra.  I have the vin number if it is needed.  I have googled for this information but it is all too vague.  One site says it is a 2.78 rear end and another site says its a 3.07:1 rear end.

I would really appreciate some information in regards to this.  The rear end that is currently in this vehicle is a 3.73 and not the original as far as I can fathom.

Thank you in advance

[joe_padavano]

Base equipment rear axle with automatic was 2.78:1. There were a number of optional ratios available from the factory: 2.56, 2.78, 3.23, 3.42, and 3.91.

[rocketraider]

Someone in Buick Forums will know.

 

If it has an original Buick axle housing there'll be a letter code stamped into the axle tube that will identify the  gearset. If those 3.73s aren't in an original housing, who knows.