Single hole is at 2.5" (2 1/2") from bottom of rear end tube to center of hole. 4 bolts 1/2" coarse thread for strength on each mount. WARNING: Cancer. Auto racing is a hazardous sport.
Bolt-On Lower GM Metric Trailing Arm Mounts - 2.5" drop single hole, pair would be ideal for vehicles where a longer arm drop is required in tight spaces.
