An automatic transmission consists of a series of bands (gears) which is each gear within the transmission. You state that truck will move in reverse, but not in drive. The loud pop you heard was the forward gear band breaking. From this point you have two options...either have the transmission rebuilt or replaced.
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An automatic transmission consists of a series of bands (gears) which is each gear within the transmission. You state that truck will move in reverse, but not in drive. The loud pop you heard was the forward gear band breaking. From this point you have two options...either have the transmission rebuilt or replaced.