Gas Saving Modifications - Fight Back Oil Prices
Overdrive automatics from the '80s can be retrofitted to almost any body style. This 200-4R was pulled from an '86 Olds Cutlass and features a Chevrolet bolt-pattern. The 0.67:1 overdrive ratio, combined with the electronic lockup converter, will help elevate fuel economy and keep crankshaft speed down, thus increasing engine life...
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