OER 342754 Features:

Reproduction, application specific, factory-style high performance thermal fan clutch for various 1969-79 Chevrolet vehicles with 7-1/4" diameter fan clutch. This reproduction is not a cookie-cutter universal part. Each fan clutch features correct curved fins, stamped face and spring as the original found on many 1970's GM vehicles with high performance engines. Clutch has 2-1/8" water pump bolt pattern and 3 1/4" fan bolt pattern. Center to center is approximately 3" tall.  This replaced several GM part #'s including 3946050, 3946804, and 342754.  GM superseded this fan clutch many years and this is the first production style.  Fan Clutch Specifications: 2-3/4" Shaft (mounting plate to edge of clutch) 2-1/8" Water Pump Bolt Spacing 3-1/4" Fan Bolt Spacing 7-1/4" Clutch Diameter Type: Thermal 2-3/4" Shaft (mounting plate to edge of clutch) 2-1/8" Water Pump Bolt Spacing 3-1/4" Fan Bolt Spacing 7-1/4" Clutch Diameter Type: Thermal