TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) |
|---|
| Axle Shaft-To-Hub Bolt |
| (9 3/4" & 10 1/2" Ring Gear) | 115 (156) |
| Caliper Guide Pin (Floating Caliper) |
| "C" & "K" Series | 28 (38) |
| Except "C" & "K" Series | 37 (50) |
| Caliper Support Key Bolt (Sliding Caliper) | 15 (20) |
| Differential Cover Bolt | 20 (27) |
| Front Brake Hose-To-Caliper Bolt | 32 (43) |
| Pinion Shaft Lock Bolt (1) | 25 (34) |
| Rear Wheel Bearing Lock Nut |
| 9 3/4", 10 1/2" & 11" Ring Gear | 65 (88) |
| Wheel Lug Nut |
| Astro, Bravada & Safari | 100 (140) |
| Lumina APV, Silhouette & Trans Sport | 100 (136) |
| "C" & "K" Series |
| With Dual Rear Wheels |
| Light Duty | 140 (190) |
| Heavy Duty | 175 (237) |
| With Single Rear Wheels | 120 (163) |
| "G" Series |
| G15 & G25 | 100 (136) |
| G35 | 140 (190) |
| "P" Series |
| With Dual Rear Wheels |
| 8 Lug | 140 (190) |
| 10 Lug | 175 (237) |
| With Single Rear Wheels | 120 (163) |
| "S" & "T" Series Except Bravada |
| With Aluminum Wheels | 95 (130) |
| (1) Use NEW pinion shaft lock bolt. DO NOT reuse bolt. |
| (1) | Use NEW pinion shaft lock bolt. DO NOT reuse bolt. |
DRUM BRAKE SPECIFICATIONS
| Application | In. (mm) |
|---|
| Astro, Safari & "S" & "T" Series |
| Drum |
| Original Diameter | 9.50 (241.3) |
| Discard Diameter | 9.59 (243.6) |
| Maximum Refinish Diameter | 9.56 (242.8) |
| Width | 2.00 (50.8) |
| Lumina APV, Silhouette & Trans Sport |
| Drum |
| Original Diameter | 8.86 (225.0) |
| Discard Diameter | 8.91 (226.3) |
| Maximum Refinish Diameter | 8.88 (225.5) |
| Wheel Cylinder Diameter | .748 (19.00) |
| All Others |
| Drum |
| Original Diameter |
| 10.00" Drum | 10.00 (254.0) |
| 11.15" Drum | 11.15 (283.2) |
| 13.00" Drum | 13.00 (330.2) |
| Discard Diameter |
| 10.00" Drum | 10.09 (256.3) |
| 11.15" Drum | 11.24 (285.5) |
| 13.00" Drum | 13.09 (332.5) |
| Maximum Refinish Diameter |
| 10.00" Drum | 10.05 (255.3) |
| 11.15" Drum | 11.21 (284.7) |
| 13.00" Drum | 13.06 (331.7) |
| Width |
| 10.00" Drum | 2.25 (57.0) |
| 11.15" Drum | 2.75 (69.9) |
| 13.00" Drum | 2.50 (63.5) Or 3.50 (88.9) |
DRUM BRAKE SPECIFICATIONS
DISC BRAKE SPECIFICATIONS
| Application | In. (mm) |
|---|
| Lateral Runout |
| All Models | .004 (.10) |
| Parallelism |
| All Models | .0005 (.013) |
| Original Thickness |
| Astro & Safari |
| 2WD | 1.04 (26.4) |
| 4WD | 1.25 (31.75) |
| Lumina APV, Silhouette & Trans Sport | 1.28 (32.4) |
| "S" & "T" Series | 1.03 (26.2) |
| All Others |
| 11.57" Rotor | 1.25 (31.8) |
| 11.86" Rotor | 1.29 (32.8) |
| 12.50" Rotor |
| "C" & "K" Series | 1.26 (32.0) |
| Except "C" & "K" Series |
| 8400 Lbs. GVW | 1.28 (32.5) |
| 10,000 Lbs. GVW | (1) 1.50 (38.1) or 1.54 (39.1) |
| 13.75" Rotor | 1.54 (39.1) |
| 14.25" Rotor | 1.54 (39.1) |
| Minimum Refinish Thickness (2) |
| Astro, Safari & "S" & "T" Series |
| 2WD | .980 (24.89) |
| 4WD | 1.230 (31.25) |
| Lumina APV, Silhouette & Trans Sport | 1.224 (31.1) |
| All Others |
| 11.57 X 1.25" Rotor | 1.230 (31.24) |
| 11.86 X 1.29" Rotor | 1.230 (31.24) |
| 12.50 X 1.26" Rotor | 1.230 (31.24) |
| 12.50 X 1.28" Rotor | 1.230 (31.24) |
| 12.50 X 1.54" Rotor | 1.480 (37.59) |
| 13.75 X 1.54" Rotor | 1.480 (37.59) |
| 14.25 X 1.54" Rotor | 1.480 (37.59) |
| Discard Thickness |
| Astro, Safari & "S" & "T" Series |
| 2WD | .965 (24.51) |
| 4WD | 1.215 (30.86) |
| Lumina APV, Silhouette & Trans Sport | 1.21 (30.7) |
| All Others |
| 11.57 X 1.00" Rotor | .965 (24.51) |
| 11.57 X 1.25" Rotor | 1.215 (30.86) |
| 11.86 X 1.29" Rotor | 1.215 (30.86) |
| 12.50 X 1.26" Rotor | 1.215 (30.86) |
| 12.50 X 1.28" Rotor | 1.215 (30.86) |
| 12.50 X 1.54" Rotor | 1.465 (37.21) |
| 13.75 X 1.54" Rotor | 1.465 (37.21) |
| 14.25 X 1.54" Rotor | 1.465 (37.21) |
| (1) No other information is available for 12.5" by 1.5" (38.1 mm) thick rotor. (2) Use specification stamped on rotor (if available). |
| (1) | No other information is available for 12.5" by 1.5" (38.1 mm) thick rotor. |
| (2) | Use specification stamped on rotor (if available). |
DISC BRAKE SPECIFICATIONS
