Lebaron Town & Country L4-153 2.5L SOHC VIN K TBI (1988)
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Balance Shaft: Description and Operation
The 4-135 engine is equipped with two balance shafts installed in a carrier attached to the lower crankcase.
The shafts are interconnected through gears to rotate in opposite directions. These gears are driven by a short chain from the crankshaft, to rotate at two
times crankshaft speed. This counterbalances certain engine reciprocating masses.