QA1 63 Series Shock 9" Rear 4C/4R BR20023 Does not fit TH350C models

Does not fit TH350C models with locking torque converter

Slots are 4-3/4"L x 1-1/2"W to accommodate most combinations

Single Sensor

tight fin radiator cores

Black UnderHood Thermal Acoustic LinerSince 1995

QA1 63 Series Shock 9" Rear 4C/4R BR20023 Does not fit TH350C modelsThe 63 Series is a sealed non rebuildable version of the 62 Series. These are most commonly used in coil over applications on both dirt and asphalt tracks. The twin tube design gives excellent feel and grip across all track conditions, but they really shine when there is a lack of grip. Built as a spec shock that could be used at specific tracks or series, the 63 Series can be used in any late model or modified. QA1 specializes in high performance