Sierra 1500 2WD V6-4.3L (2008)
Crankshaft Main Bearing: Specifications
Crankshaft Main Bearing Clearance #1 - Production ...................................................................................................... 0.02-0.05 mm (0.0008-0.0020 in)
Crankshaft Main Bearing Clearance #2, #3, and #4 - Production ................................................................................ 0.028-0.058 mm (0.0011-0.0023 in)
Crankshaft Main Bearing Clearance #1 - Service ........................................................................................................ 0.0254-0.05 mm (0.0010-0.0020 in)
Crankshaft Main Bearing Clearance #2, #3, and #4 - Service ..................................................................................... 0.025-0.063 mm (0.0010-0.0025 in)
Crankshaft Bearing Cap Bolt - Preferred Method
First Pass ................................................................................................................................................................................................ 20 N.m (15 lb ft)
Final Pass ......................................................................................................................................................................................................... 73 degrees
Crankshaft Bearing Cap Bolt .................................................................................................................................................................... 105 N.m (77 lb ft)
