GM's 4L80E overdrive automatic is the latest in a continuing legacy of rugged Turbo-Hydramatic transmissions from Chevrolet. Fifty years ago, the TH350 and the TH400 transmissions were a new ...
Modern GM transmissions can be more than a little tricky with all the wiring and tuning involved, but nobody said it needed to be that way. If only there were a little computer you could slap on your ...
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