700R4 Overdrive Transmission Rebuild - Overachieving Overdrive
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The strange-looking torque converter on the left is a small-diameter, 2,600-stall unit, built with a fullsize lockup clutch similar to the 2,000-rpm unit on the right. Although more expensive than a non-lockup converter, this design is the key to getting a great launch while retaining decent street manners. The lockup feature becomes increasingly effective to provide decent highway fuel efficiency and decrease harmful fluid overheating as converter stall speed increases. View Related Article
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