GM Service Manual Online
For 1990-2009 cars only

Fastener Tightening Specifications

Application

Specification

Metric

English

Differential Housing Cover Bolts

29 N·m

21 lb ft

Differential Ring Gear Bolts

190 N·m

140 lb ft

Differential Support Mounting Bolts

175 N·m

129 lb ft

Drain Plug

39 N·m

29 lb ft

Fill Plug

39 N·m

29 lb ft

Pinion Cage Bolts

29 N·m

21 lb ft

Pinion Nut

245 N·m

181 lb ft

Propeller Shaft Coupler-to-Differential Flange Bolts

85 N·m

63 lb ft