Section 1492 (Front Drive Axle - 4WD): Specification
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, 2003 Chevrolet TrailBlazer, and 2002 Oldsmobile Bravada. However, it is still accessible from the selected car via links, so may be relevant.
FASTENER TIGHTENING SPECIFICATIONS CHART
| Application | Specification | |
|---|---|---|
| Metric | English | |
| Actuator Mounting Bolts | 6 N.m | 53 lb. in. |
| Brake Hose Retaining Bolts | 40 N.m | 30 lb. ft. |
| Differential Carrier Assembly Case Bolts | 48 N.m | 35 lb. ft. |
| Differential Carrier Assembly Mounting Bolts | 85 N.m | 63 lb. ft. |
| Intermediate Shaft Bearing Assembly Case Bolts | 48 N.m | 35 lb. ft. |
| Intermediate Shaft Bearing Assembly Mounting Bolts | 48 N.m | 35 lb. ft. |
| Pinion Shaft Lock Screw | 35 N.m | 26 lb. ft. |
| Plug, Drain and Fill | 32 N.m | 24 lb. ft. |
| Ring Gear Bolts | 83 N.m | 61 lb. ft. |
| Upper Shock Module Mounting Bolt | 40 N.m | 30 lb. ft. |
AXLE PRELOAD AND BACKLASH SPECIFICATIONS CHART
| Application | Specification | |
|---|---|---|
| Metric | English | |
| Backlash | 0.08-0.25 mm | 0.003-0.010 in |
| Backlash (Preferred) | 0.13-0.18 mm | 0.005-0.007 in |
| Pinion Bearing Preload, New Bearings | 1.7-3.4 N.m | 15-30 lb in |
| Pinion Bearing Preload, Used Bearings | 1.1-2.3 N.m | 10-20 lb in |
| Pinion and Differential Case Bearing Preload, New Bearings | 3.4-6.2 N.m | 30-55 lb in |
| Pinion and Differential Case Bearing Preload, Used Bearings | 2.8-5.1 N.m | 25-45 lb in |
SEALERS, ADHESIVES AND LUBRICANTS CHART
| Application | Type of Material | GM Part Number |
|---|---|---|
| Intermediate Shaft Bearing Housing Cavity | Lubricant | 12377985 or equivalent or lubricant meeting requirement of NLGI #2, Category LB or GC-LB |
| Intermediate Shaft Bearing Housing Mating Surface | Sealant | US PN 1052942, Canadian PN 10953466 or equivalent |
| Differential Carrier Assembly Case Mating Surface | Sealant | US PN 1052942, Canadian PN 10953466 or equivalent |
| Front Drive Axle | Lubricant | UN PN 12378261, Canadian PN 10953455 or equivalent meeting GM Specification 9986115 |
| Pinion Yoke Splines | Sealant | US PN 12346004, Canadian PN 10953480 or equivalent |