Accumulator Piston 4T80E 2-3

Accumulator Piston 4T80E 2-3 1994 & later Increased bore length for more piston-to-pin support. Machined from high-quality aluminum. More durable than OE replacements. Piston accepts standard OE or replacement seals. Symptoms: 2-3 Soft 3rd Clutch distress 4-3 Kickdown Damage from broken spring Worn accumulator piston pin bore Cause: Normal wear and uneven loading from spring. Correction: Install the Sonnax replacement piston with increased bore length for more piston-to-pin support and greater durability NOTE: This piston should not be used in a first-design 2-3 accumulator found in '93 models. These units do NOT have the second bumper spring on the top portion of the accumulator piston. If the large spring is broken, replace with GM part number 8684827