June 06, 2018
All Over the Map: Attacking 4L60/E Burnt 3-4 Clutches with Confidence
Brian Wing
Temporarily out of stock with no current restock date.
Input shaft failure is a common problem in GM 4L60-E, 4L65-E and 4L70-E units as power levels are increased. Sonnax heavy duty input shaft 77773-11S for 300mm non-reluctor style units is ideal for any high-horsepower street or strip application. The shaft is manufactured from a specially heat-treated steel with very hard outer layers and a more ductile inner core for strength and resistance to fracture. The feedholes are chamfered to reduce stress, and the shaft is further processed by shot peening and deep cryogenic treatment.
June 06, 2018
Brian Wing