This is a package of Progressive Rate Shock Springs from Traxxas for use with the Traxxas Ultra Shocks set only. These may be used on either the front or rear of the T-Maxx 3.3.
FEATURES:Steel constructionWhite in colorUnder light duty driving the progressive rate springs soak up small bumps.As the jumps get bigger these springs get firmer the more the suspension is compressed.
INCLUDES:Four white progressive rate front or rear shock springs One instruction sheet
REQUIRES:Ultra shocks from Traxxas
SPECS:Length: 3" (76.2mm)