Ring and Pinion Gear Set Up
To install your ring and pinion gears and/or differential correctly, it is critical to torque your bolts and set your preload and backlash correctly. The following table contains the proper specifications for all popular axles.
AAM Axles - Gear Setup Torque and Backlash Specs:
| Pinion Preload (New) | Pinion Preload (Reused) | Ring Gear Backlash | Ring Gear Bolt Torque | Carrier Bearing Cap Bolts |
|
AAM 9.25" | 15 to 25 in-lbs. | 10 to 20 in-lbs. | .005" to .007" | 103 ft-lbs. | 63 ft-lbs. |
AAM 9.25" IFS | 15 to 22 in-lbs. | 7 to 9 in-lbs. | .006" to .010" | 75 ft-lbs. | 80 ft-lbs. |
AAM 10.5" | 15 to 25 in-lbs. | 8 to 11 in-lbs. | .005" to .007" | 175 ft-lbs. | 120 ft-lbs. |
AAM 11.5" | 20 to 30 in-lbs. | 8 to 11 in-lbs. | .005" to .007" | 175 ft-lbs. | 200 ft-lbs. |
AMC Axles - Gear Setup Torque and Backlash Specs:
| Pinion Preload (New) | Pinion Preload (Reused) | Ring Gear Backlash | Ring Gear Bolt Torque | Carrier Bearing Cap Bolts |
|
AMC Model 20 / M20 | 14 to 19 in-lbs. | 6 to 8 in-lbs. | .006" to .010" | 65 ft-lbs. | 65 ft-lbs. |
AMC Model 35 / M35 | 12 to 14 in-lbs. | 6 to 7 in-lbs. | .006" to .010" | 55 ft-lbs. | 55 ft-lbs. |
Chrysler Axles - Gear Setup Torque and Backlash Specs:
| Pinion Preload (New) | Pinion Preload (Reused) | Ring Gear Backlash | Ring Gear Bolt Torque | Carrier Bearing Cap Bolts |
|
Chrysler 7.25" | 12 to 14 in-lbs. | 6 to 7 in-lbs. | .006" to .010" | 55 ft-lbs. | 50 ft-lbs. |
Chrysler 8" | 12 to 15 in-lbs. | 6 to 9 in-lbs. | .006" to .010" | 65 ft-lbs. | 75 ft-lbs. |
Chrysler 8.25" | 12 to 15 in-lbs. | 6 to 8 in-lbs. | .006" to .010" | 55 ft-lbs. | 60 ft-lbs. |
Chrysler 8.75" - 41 | 13 to 15 in-lbs. | 6 to 8 in-lbs. | .006" to .010" | 55 ft-lbs. | 90 ft-lbs. |
Chrysler 8.75" - 42 | 15 to 25 in-lbs. | 7 to 10 in-lbs. | .006" to .010" | 55 ft-lbs. | 90 ft-lbs. |
Chrysler 8.75" - 89 | 14 to 19 in-lbs. | 6 to 9 in-lbs. | .006" to .010" | 55 ft-lbs. | 90 ft-lbs. |
Chrysler 9.25" (Rear) | 14 to 19 in-lbs. | 6 to 9 in-lbs. | .006" to .010" | 65 ft-lbs. | 75 ft-lbs. |
Chrysler 9.25" (Front) | 15 to 25 in-lbs. | 10 to 20 in-lbs. | .005" to .007" | 103 ft-lbs. | 63 ft-lbs. |
Chrysler 10.5" | 15 to 25 in-lbs. | 8 to 11 in-lbs. | .005" to .007" | 175 ft-lbs. | 120 ft-lbs. |
Chrysler 11.5" | 20 to 30 in-lbs. | 8 to 11 in-lbs. | .005" to .007" | 175 ft-lbs. | 200 ft-lbs. |
Dana Axles - Gear Setup Torque and Backlash Specs:
| Pinion Preload (New) | Pinion Preload (Reused) | Ring Gear Backlash | Ring Gear Bolt Torque | Carrier Bearing Cap Bolts |
|
Dana 25 | 12 to 15 in-lbs. | 6 to 7 in-lbs. | .006" to .010" | 55 ft-lbs. | 50 ft-lbs. |
Dana 27 | 12 to 15 in-lbs. | 6 to 7 in-lbs. | .006" to .010" | 55 ft-lbs. | 50 ft-lbs. |
Dana 28 | 10 to 13 in-lbs. | 5 to 6 in-lbs. | .006" to .010" | 55 ft-lbs. | 50 ft-lbs. |
Dana 30 | 12 to 15 in-lbs. | 6 to 8 in-lbs. | .006" to .010" | 55 ft-lbs. | 60 ft-lbs. |
Dana 30 JK | 12 to 15 in-lbs. | 6 to 8 in-lbs. | .006" to .010" | 80 ft-lbs. | 60 ft-lbs. |
Dana 36 ICA | 14 to 19 in-lbs. | 6 to 7 in-lbs. | .006" to .010" | 55 ft-lbs. | 70 ft-lbs. |
Dana 44 | 14 to 19 in-lbs. | 6 to 9 in-lbs. | .006" to .010" | 55 ft-lbs. | 60 ft-lbs. |
Dana 44 JK | 22 to 35 in-lbs. | 12 to 15 in-lbs. | .006" to .010" | 135 ft-lbs. | 80 ft-lbs. |
Dana 44 Corvette | 14 to 19 in-lbs. | 6 to 9 in-lbs. | .006" to .010" | 55 ft-lbs. | 55 ft-lbs. |
Dana 50 | 14 to 19 in-lbs. | 6 to 9 in-lbs. | .006" to .010" | 65 ft-lbs. | 60 ft-lbs. |
Dana 60 | 17 to 30 in-lbs. | 8 to 10 in-lbs. | .006" to .010" | 110 ft-lbs. | 80 ft-lbs. |
Dana 61 | 17 to 30 in-lbs. | 8 to 10 in-lbs. | .006" to .010" | 110 ft-lbs. | 80 ft-lbs. |
Dana 70 | 22 to 35 in-lbs. | 12 to 15 in-lbs. | .006" to .010" | 110 ft-lbs. | 80 ft-lbs. |
Dana 70U | 17 to 30 in-lbs. | 8 to 10 in-lbs. | .006" to .010" | 110 ft-lbs. | 80 ft-lbs. |
Dana 80 | 25 to 40 in-lbs. | 9 to 11 in-lbs. | .004" to .010" | 175 ft-lbs. | 90 ft-lbs. |
Ford Axles - Gear Setup Torque and Backlash Specs:
| Pinion Preload (New) | Pinion Preload (Reused) | Ring Gear Backlash | Ring Gear Bolt Torque | Carrier Bearing Cap Bolts |
|
Ford 7.5" | 14 to 19 in-lbs. | 6 to 8 in-lbs. | .011" to .016" | 60 ft-lbs. | 60 ft-lbs. |
Ford 8" (Drop Out) | 12 to 14 in-lbs. | 6 to 7 in-lbs. | .010" to .015" | 60 ft-lbs. | 60 ft-lbs. |
Ford 8" IRS | 14 to 19 in-lbs. | 8 to 10 in-lbs. | .006" to .010" | 80 ft-lbs. | 80 ft-lbs. |
Ford 8.7" | 14 to 19 in-lbs. | 6 to 8 in-lbs. | .010" to .015" | 60 ft-lbs. | 60 ft-lbs. |
Ford 8.8" (2-Cut) | 14 to 19 in-lbs. | 6 to 8 in-lbs. | .011" to .016" | 60 ft-lbs. | 60 ft-lbs. |
Ford 8.8" (5-Cut) | 14 to 19 in-lbs. | 6 to 8 in-lbs. | .011" to .016" | 60 ft-lbs. | 60 ft-lbs. |
Ford 9 Inch (OEM) | 13 to 15 in-lbs. | 6 to 7 in-lbs. | .010" to .016" | 60 ft-lbs. | 60 ft-lbs. |
Ford 9 Inch (AM) | 13 to 15 in-lbs. | 6 to 7 in-lbs. | .006" to .010" | 60 ft-lbs. | 60 ft-lbs. |
Ford 9 Inch Daytona | 14 to 16 in-lbs. | 6 to 8 in-lbs. | .006" to .010" | 60 ft-lbs. | 60 ft-lbs. |
Ford 9-3/8" | 14 to 16 in-lbs. | 6 to 8 in-lbs. | .010" to .015" | 70 ft-lbs. | 60 ft-lbs. |
Ford 9.75" | 15 to 19 in-lbs. | 6 to 8 in-lbs. | .006" to .010" | 75 ft-lbs. | 70 ft-lbs. |
Ford 10.25" | 20 to 35 in-lbs. | 6 to 8 in-lbs. | .006" to .010" | 95 ft-lbs. | 80 ft-lbs. |
Ford 10.5" | 20 to 35 in-lbs. | 6 to 8 in-lbs. | .006" to .010" | 95 ft-lbs. | 80 ft-lbs. |
GM Axles - Gear Setup Torque and Backlash Specs:
| Pinion Preload (New) | Pinion Preload (Reused) | Ring Gear Backlash | Ring Gear Bolt Torque | Carrier Bearing Cap Bolts |
|
GM 55P | 14 to 18 in-lbs. | 6 to 8 in-lbs. | .006" to .010" | 55 ft-lbs. | 60 ft-lbs. |
GM 55T | 14 to 18 in-lbs. | 6 to 8 in-lbs. | .006" to .010" | 55 ft-lbs. | 60 ft-lbs. |
GM 7.2" IFS | 11 to 14 in-lbs. | 6 to 7 in-lbs. | .006" to .010" | 65 ft-lbs. | 60 ft-lbs. |
GM 7.5" / 7.625" (2-Cut) | 12 to 15 in-lbs. | 6 to 7 in-lbs. | .006" to .010" | 65 ft-lbs. | 60 ft-lbs. |
GM 7.5" / 7.625" (5-Cut) | 12 to 15 in-lbs. | 6 to 7 in-lbs. | .003" to .006" | 65 ft-lbs. | 60 ft-lbs. |
GM 7.6" IRS | 12 to 15 in-lbs. | 6 to 7 in-lbs. | .006" to .010" | 65 ft-lbs. | 60 ft-lbs. |
GM 7.75" | 12 to 15 in-lbs. | 6 to 7 in-lbs. | .006" to .010" | 65 ft-lbs. | 60 ft-lbs. |
GM 8.0" | 12 to 15 in-lbs. | 6 to 7 in-lbs. | .003" to .006" | 65 ft-lbs. | 60 ft-lbs. |
GM 8.2" | 12 to 15 in-lbs. | 6 to 7 in-lbs. | .006" to .010" | 55 ft-lbs. | 60 ft-lbs. |
GM 8.2" BOP | 12 to 15 in-lbs. | 6 to 7 in-lbs. | .006" to .010" | 55 ft-lbs. | 60 ft-lbs. |
GM 8.25" IFS | 14 to 19 in-lbs. | 6 to 8 in-lbs. | .006" to .010" | 65 ft-lbs. | 55 ft-lbs. |
GM 8.5" / 8.6" (2-Cut) | 14 to 19 in-lbs. | 6 to 8 in-lbs. | .003" to .006" | 65 ft-lbs. | 60 ft-lbs. |
GM 8.5" / 8.6" (5-Cut) | 14 to 19 in-lbs. | 6 to 8 in-lbs. | .006" to .010" | 65 ft-lbs. | 60 ft-lbs. |
GM 8.6" IRS (2-Cut) | 14 to 19 in-lbs. | 6 to 8 in-lbs. | .003" to .006" | 65 ft-lbs. | 60 ft-lbs. |
GM 8.875 12 Bolt (P) | 14 to 19 in-lbs. | 6 to 8 in-lbs. | .006" to .010" | 55 ft-lbs. | 60 ft-lbs. |
GM 8.875 12 Bolt (T) | 13 to 15 in-lbs. | 6 to 7 in-lbs. | .006" to .010" | 55 ft-lbs. | 60 ft-lbs. |
GM 9.25" IFS | 15 to 22 in-lbs. | 7 to 9 in-lbs. | .006" to .010" | 75 ft-lbs. | 80 ft-lbs. |
GM 9.5" | 15 to 22 in-lbs. | 7 to 9 in-lbs. | .006" to .010" | 75 ft-lbs. | 80 ft-lbs. |
GM 10.5" 14 Bolt | 20 to 35 in-lbs. | 8 to 11 in-lbs. | .006" to .010" | 120 ft-lbs. | 135 ft-lbs. |
GM 11.5" | 20 to 30 in-lbs. | 8 to 11 in-lbs. | .005" to .007" | 175 ft-lbs. | 200 ft-lbs. |
Suzuki Axles - Gear Setup Torque and Backlash Specs:
| Pinion Preload (New) | Pinion Preload (Reused) | Ring Gear Backlash | Ring Gear Bolt Torque | Carrier Bearing Cap Bolts |
|
Suzuki Samurai | 12 to 15 in-lbs. | 5 to 6 in-lbs. | .006" to .010" | 70 ft-lbs. | 70 ft-lbs. |
Toyota Axles - Gear Setup Torque and Backlash Specs:
| Pinion Preload (New) | Pinion Preload (Reused) | Ring Gear Backlash | Ring Gear Bolt Torque | Carrier Bearing Cap Bolts |
|
Toyota 7.5" | 12 to 15 in-lbs. | 5 to 6 in-lbs. | .006" to .010" | 70 ft-lbs. | 70 ft-lbs. |
Toyota 8" | 12 to 15 in-lbs. | 5 to 6 in-lbs. | .006" to .010" | 70 ft-lbs. | 70 ft-lbs. |
Toyota 8" Clamshell | 9 to 14 in-lbs. | 5 to 6 in-lbs. | .004" to .008" | 70 ft-lbs. | 70 ft-lbs. |
Toyota TV6 | 14 to 17 in-lbs. | 5 to 6 in-lbs. | .006" to .010" | 70 ft-lbs. | 70 ft-lbs. |
Toyota T100 | 14 to 17 in-lbs. | 5 to 6 in-lbs. | .006" to .010" | 70 ft-lbs. | 70 ft-lbs. |
Toyota Tacoma | 14 to 17 in-lbs. | 5 to 6 in-lbs. | .006" to .010" | 70 ft-lbs. | 70 ft-lbs. |
Land Cruiser 9.5" | 8 to 11 in-lbs. | 5 to 6 in-lbs. | .006" to .008" | 85 ft-lbs. | 80 ft-lbs. |
This ring and pinion setup guide is ©Copyright Crawlpedia.com - Please provide a link back to this page when copying.
Data is accurate to the best of our knowledge and is offered as-is with no guarantee.
More Gear and Axle Guides:
Differential Locker Comparison - A detailed comparison of popular differentials and lockers.
Ring and Pinion Gear Tooth Patterns - Gear tooth pattern setup and adjustement instructions.
Gear Ratio Finder - Find the ideal axle gear ratio for your new larger or smaller tires.
Gear Ratio Calculator - Calculate the gear ratio of gears based on their tooth count.
Ring and Pinion Ratio Variations - An explanation of why some ring and pinion gear ratios vary.
Thick Gears and Carrier Breaks - Thick ring and pinion gears and differential carrier breaks explained.
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