03-19-2012, 10:33 AM

ken66

Senior Member

Join Date: Apr 2007

Posts: 105

Speedo gear question

My shop manual is pretty beat and as a result I've lost the cover as well as the first few pages including the pages showing which drive and driven gears go with which rears. The car is a 66 Bonneville with a TH400 and I've gone from a 2.56 (red driven gear) to a 2.73. I have a yellow driven gear from the 2.73. Can someone tell me (a) whether yellow is the correct driven gear color for the 2.73 and (b) whether I need to change the drive gear?

Thanks much for your help.

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