The Speedmaster PCE623.1009 is a heavy-duty input shaft and aluminum forward drum assembly engineered specifically for the GM TH400 automatic transmission. Designed with racing and high-performance applications in mind, this kit delivers the strength and reliability needed to handle increased power loads beyond the capability of stock components.
The aluminum forward drum helps reduce rotating mass within the transmission, while the heavy-duty input shaft is built to withstand the demands of competition and spirited street driving. This assembly is a direct upgrade for GM TH400-equipped vehicles looking to improve transmission durability and performance under hard use.
MPNPCE623.1009
UPC840136559306
