You got it backwards. The SBD was replaced by the SB2C.
"The Curtiss SB2C Helldiver was an American aircraft carrier-based dive bomber aircraft produced for the United States Navy during World War II. It replaced the Douglas SBD Dauntless in US Navy service. Despite its size, the SB2C was much faster than the SBD it replaced. Crew nicknames for the aircraft included the Big-Tailed Beast (or just the derogatory Beast), Two-Cee and Son-of-a-B**** 2nd Class " -Quote wiki.