Quote:
Originally Posted by handana
I have a 1966 Bird with a 390 V8 A/C, and an economy rear end ratio. I'd like to get a little more performance from my engine transferred to the wheels and would appreciate any advice as to ratios, types, brands, etc...
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I'm not certain what you mean by an "economy" ratio. Do you mean you have the original rear end still in the car, or has someone swapped out the gears once already? (My 'Bird gets 8 mpg with the factory ratio!)
I've never heard of anyone doing this with a T-Bird, as most people consider these cars too heavy for serious speed mods.
My only advice would be to ensure that the springs and structure are sound before making the change: no rust in the shock mounts or torque boxes, no broken leaves in the springs and new bushings at the mounts.
Good luck.
~Steve