Yukon 4WD V8-5.3L (2008)
Crankshaft: Specifications
Engine Mechanical Specifications (RPO LY5 VIN J)
Crankshaft
Connecting Rod Journal Diameter - Production .................................................................................................. 53.318-53.338 mm (2.0991-2.0999 in)
Connecting Rod Journal Diameter - Service ................................................................................................................................ 53.308 mm (2.0987 in)
Connecting Rod Journal Out-of-Round - Production ..................................................................................................................... 0.005 mm (0.0002 in)
Connecting Rod Journal Out-of-Round - Service ............................................................................................................................. 0.01 mm (0.0004 in)
Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length - Production ...................................................................... 0.005 mm (0.0002 in)
Connecting Rod Journal Taper - Maximum for 1/2 of Journal Length - Service ........................................................................... 0.02 mm (0.00078 in)
Crankshaft End Play ...................................................................................................................................................... 0.04-0.2 mm (0.0015-0.0078 in)
Crankshaft Main Journal Diameter - Production ..................................................................................................... 64.992-65.008 mm (2.558-2.559 in)
Crankshaft Main Journal Diameter - Service .................................................................................................................................. 64.992 mm (2.558 in)
Crankshaft Main Journal Out-of-Round - Production ................................................................................................................ 0.003 mm (0.000118 in)
Crankshaft Main Journal Out-of-Round - Service .......................................................................................................................... 0.008 mm (0.0003 in)
Crankshaft Main Journal Taper - Production ................................................................................................................................... 0.01 mm (0.0004 in)
Crankshaft Main Journal Taper - Service ....................................................................................................................................... 0.02 mm (0.00078 in)
Crankshaft Rear Flange Runout .......................................................................................................................................................... 0.05 mm (0.002 in)
Crankshaft Reluctor Ring Runout - Measured 1.0 mm (0.04 in) Below Tooth Diameter ..................................................................... 0.7 mm (0.028 in)
Crankshaft Thrust Surface - Production ..................................................................................................................... 26.14-26.22 mm (1.029-1.0315 in)
Crankshaft Thrust Surface - Service ............................................................................................................................................... 26.22 mm (1.0315 in)
Crankshaft Thrust Surface Runout ................................................................................................................................................... 0.025 mm (0.001 in)
