Connecting Rod Bearings Selection Specifications

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
1	Bearing Grade Specification
2	Connecting Rod Bore Specification

Connecting Rod Large End Bore Diameter	Bearing	Crankshaft Pin Diameter
		4	3	2	1
		53. 929 - 53. 936	53. 936 - 53. 942	53. 942 - 53. 948	53. 948 - 53. 955
		Use This Bearing Color
1 57. 563 - 57. 568	Upper Bearing	Blue	Blue	Red	Red
1 57. 563 - 57. 568	Lower Bearing	Yellow	Blue	Blue	Red
2 57. 568 - 57. 573	Upper Bearing	Yellow	Blue	Blue	Red
2 57. 568 - 57. 573	Lower Bearing	Yellow	Yellow	Blue	Blue
3 57. 573 - 57. 578	Upper Bearing	Yellow	Yellow	Blue	Blue
3 57. 573 - 57. 578	Lower Bearing	Green	Yellow	Yellow	Blue
4 57. 578 - 57. 583	Upper Bearing	Green	Yellow	Yellow	Blue
4 57. 578 - 57. 583	Lower Bearing	Green	Green	Yellow	Yellow