Front motor plates are offered in one- and two-piece designs. One-piece version mounts using the lower front mounting holes. Two-piece set uses the lower front mount holes and the water pump mounting holes. ALL38128 and ALL38129 plates are 3/8" thick and have 19-1/2" center-to-center chassis mounting holes with bushings to allow for minimum engine flex and help with weight transfer. Universal one-piece plate is not drilled for chassis mounts but is staked for a 19-1/2" center-to-center chassis, 1/4" thick x 20-1/2" overall.