This is a replacement Serpent "V2" Differential O-Ring Set, and is intended for use with the Serpent S811 and S811-T 1/8 vehicles. These O-Rings are used with the SER600425 V2 Differential Housing. This update was developed to prevent the washer behind the sun gear from warping and causing damage to the differential.
This product was added to our catalog on August 3, 2011