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 ...
With their debut in the 1990s, GM's 4L60E and 4L80E transmissions reveal some of their differences –- and similarities –- right in their names. The "4" and "L" respectively refer to the number of ...
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