Just pull the cover, count the pinion gear teeth and the ring gear teeth and divide. Fluid probably needs changing anyway.
With doc on that one! $25 in lube, gasket and additive (if needed) plus some brake kleen to get the gunk out. Then you can see your numerical ratio stamped on the ring gear.
Originally Posted By 69 Bird
Thanks, Dr. D and Quenton. I assumed a 3:08 since I am getting approx. 17 MPG city and 20 MPG highway. next time I change the fluid, last done by the shop on Feb 2010, I will confirm it for myself.
Good thing I read the last posts....all dressed up and nowhere to go.
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1967 Starlight black PMD Engineering 400 Auto 1968 Alpine Blue 400 4 speed 1968 Verdoro Green 400 HO 4 speed 2013 1LE 2SS/RS Inferno Orange Camaro.