This GM TH-400 is our B&M Street/Strip automatic transmission (for Chevrolet applications) with a large diameter bushing for use with large diameter yoke (1-7/8 inch) Spicer yoke part number 2-3-10431X) 600 HP maximum. Legendary B&M transmission for street use B&M's Street/Strip transmission is a complete ready to run unit (less converter) for high performance street and mild strip use. The transmission provides firm shifts and features a standard shift pattern, these are the finest available for street and strip use. Includes a 2.48:1 first gear ratio, 1.48:1 second gear, rebuilt front pump utilizes B&M pressure regulator spring and shims, all new B&M high performance friction plates, new intermediate roller clutch, new kickdown band with welded anchors, machined center support with new case saver ring, all new thrust bearings and races, new adjustable modulator and silencer ring, new external electric connector and kickdown solenoid and a re-calibrated valve body. Max 600 HP / 550 Ft/Lbs.
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