Transmission duties are being done by a TCI-built 700R4. This automatic has a full reverse manual valve body with compression braking features as well as a 2,200-stall converter. Behind that is the venerable Atlas transfer case with a 3.8:1 low range from Advance Adapters. With the 3.06:1 First gear in the 700R4, 3.8:1 low gear in the Atlas, and 5.38:1 gears in the axles, the combined lowest crawl ratio of 62.5:1 should be fine for a fun buggy. This may not seem that low, but we also have the torque multiplication of the torque converter and nearly 500 lb-ft of torque coming from our 383 small-block.