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Username Post: power brake booster        (Topic#353766)
Senior Member
Posts: 423

Loc: Bella Vista, AR
Reg: 01-19-01
11-04-18 07:05 PM - Post#2750466    

My 63 rear end ratio is an open 3.24.
Would it be worth the work to install a 3.08 posi, which I already have?
Also, would it require changing the trans speedometer gear? Thanks, Ed


Posts: 27999
Loc: San Francisco, CA
Reg: 11-26-02
11-09-18 04:01 PM - Post#2750914    
    In response to ejw71

A 3.24 ratio was not offered in 1963. Available ratios jumped from 3.08 to 3.36.

IMO the 3.08 would be a worthwhile swap if you want taller gearing and/or posi. If you want the speedo to read accurately you would also need to change the speedo driven gear in the trans.


Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.


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