System Specifications
| Front | JC5/JH5-Vacuum | Normal Size O.D. X Thickness | 12.00 x 1.14 |
| Original Thickness | 1.14 | ||
| Minimum After Refinish | 1.10 | ||
| Replacement (Discard) | 1.082 in | ||
| JH6-Hydraulic | Normal Size O.D. X Thickness | 12.80 x 1.50 | |
| Original Thickness | 1.50 | ||
| Minimum After Refinish | 1.46 | ||
| Replacement (Discard) | 1.437 in | ||
| JH7-Hydraulic | Normal Size O.D. X Thickness | 12.80 x 1.50 | |
| Original Thickness | 1.50 | ||
| Minimum After Refinish | 1.46 | ||
| Replacement (Discard) | 1.437 in | ||
| Pickup JC5/JH5-Vacuum | Rear Axle Ring Gear Size | 8.6 in | |
| Rear | Normal Size O.D. X Thickness | 12.80 x 0.787 | |
| Original Thickness | 0.787 | ||
| Minimum After Refinish | 0.748 | ||
| Replacement (Discard) | 0.728 in | ||
| Suburban/Utility JC5/JH5-Vacuum | Rear Axle Ring Gear Size | 8.6 in | |
| Normal Size O.D.X Thickness | 13.00 x 1.181 | ||
| Original Thickness | 1.181 | ||
| Minimum After Refinish | 1.142 | ||
| Replacement (Discard) | 1.122 in | ||
| JH-6 | Rear Axle Ring Gear Size | 9.5 in | |
| Normal Size O.D. X Thickness | 13.00 x 1.142 | ||
| Original Thickness | 1.141 | ||
| Minimum After Refinish | 1.102 | ||
| Replacement (Discard) | 1.082 in | ||
| JH6-Hydraulic | Rear Axle Ring Gear Size | 10.5/11.5 in | |
| Normal Size O.D. X Thickness | 13.00 x 1.142 | ||
| Original Thickness | 1.141 | ||
| Minimum After Refinish | 1.102 | ||
| Replacement (Discard) | 1.082 in | ||
| JH7-Hydraulic | Rear Axle Ring Gear Size | 11.5 in | |
| Normal Size O.D. X Thickness | 12.80 x 1.181 | ||
| Original Thickness | 1.181 | ||
| Minimum After Refinish | 1.142 | ||
| Replacement (Discard) | 1.122 in |