30 Spline Input Shaft - 10.75 and 11.50-inch Bolt Circles - 2800-3200 RPM StallThis HoleShot 3000 fits 1984 93 GM 700R4 4L60 automatic transmissions with 30 spline input shaft. This converter does not retain the lock up feature. Holeshot torque converters are for serious minded performance enthusiasts and offer additional strength and durability features not found in our Tork Master or Traveler series of converters. The Holeshot 3000 converter is an excellent choice for vehicles with some performance engine modifications,
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