Eaton Performance Differential Installation Notes
Part-specific installation notes and instructions for your new Eaton Posi, Eaton ELocker, Detroit Truetrac and Detroit Locker.
Differential Owner's Manual
Use the list below to find any special installation notes for your differential (listed by part number). If your part number is not listed, there are no special notes associated with the installation.
Eaton Performance Differential Installation Notes
| Part Number | Differential Notes |
| 14023-010 | For use with non-thick ring gears only. |
| 14211-1 | For use with 10 bolt ring gear design. On 2016+ Toyota Tacoma, fits automatic transmission, not equipped with factory locker. |
| 14212-1 | In Toyota Land Cruiser applications, only fits models with non-C-clip axle designs (non-USA model). |
| 14215-1 | Housing may require relief grinding to properly seat electro-magnet. 33mm output shaft or manual locking hubs for '09-'18 Land Cruiser 150 series rear axle. |
| 14216-1 | For use with 12 bolt ring gear design. |
| 14217-1 | Clamshell style housing only. |
| 14218-1 | Front application only. Large hub bearing diameter (50 mm) uses Toyota bearing #90368-50006. Clamshell style housing only. |
| 14219-1 | Clamshell style housing only, housing may require relief grinding to properly seat electro-magnet. |
| 14220-1 | Non clamshell style housing only. |
| 14221-1 | Clamshell style housing only, housing may require relief grinding to properly seat electro-magnet. |
| 14232-1 | Toyota Tundra: Only works with housings not equipped with OE electric lockers. |
| 14235-1 | 2016+ Tacoma: All manual transmissions and factory locker equipped trucks. |
| 162C66A | Bearing LM102949 and race LM102911 and unique outboard shims are required. |
| 162SL60A | Applies to non-axle disconnect style housing only. |
| 162SL60B | Applies to non-axle disconnect style housing only. |
| 187C145A | 4.56 and numerically higher gear ratios require relief grinding on ring gear tooth crown for proper installation. |
| 187C146A | 4.56 and numerically higher gear ratios require relief grinding on ring gear tooth crown for proper installation. |
| 187C147A | 4.56 and numerically higher gear ratios require relief grinding on ring gear tooth crown for proper installation. |
| 187C148A | All Eaton differentials made for General Motors 8.5" and 8.6" axles require special bearings. For axles with small bearing bores (race O.D. or 2.89"), usually found on vehicles prior to 1999, bearing LM102949 and race LM102911 are required. For axles with large bearing bores (race O.D. of 3.06"), usually found on vehicles from 1999-2013, bearing LM603049 and race LM603012 are required. |
| 187C149A | All Eaton differentials made for General Motors 8.5" and 8.6" axles require special bearings. For axles with small bearing bores (race O.D. or 2.89"), usually found on vehicles prior to 1999, bearing LM102949 and race LM102911 are required. For axles with large bearing bores (race O.D. of 3.06"), usually found on vehicles from 1999-2013, bearing LM603049 and race LM603012 are required. |
| 187S196A | For use with 3.25" bearing bore (aftermarket housing). Designed to fit axles cut with 45-degree pressure angles. |
| 187SL16C | Applies to non-axle disconnect style housing only. For use with non-thick ring gears only. Not for use with factory JK and later housings. |
| 187SL16D | Applies to non-axle disconnect style housing only. For use with non-thick ring gears only. Not for use with factory JK and later housings. |
| 187SL173A | Front axle serial numbers 49L11363C or 57L05188B and later, Rear axle serial numbers 35S18135C or 37S08651B and later |
| 187SL174A | Front axle serial numbers and later: Range Rover - suffix H, 88/109 4 cyl. ¾ ton - suffix H, 109 V8/1 ton - suffix D. Rear axle serial numbers and later: Range Rover - suffix F, 88 - suffix G, 109 V8/1 ton - (Salisbury standard), 109 4 cyl. ¾ ton - (Salisbury optional). |
| 187SL192A | For use with Super Dana 44 housing only. Bearing LM104949 and race LM104912 are required. |
| 187SL61B | 32010X bearing allows 913A610 in place of 913A611. |
| 19510-010 | Includes 800# preload springs. |
| 19512-010 | Includes 800# preload springs. |
| 19556-010 | All Eaton differentials made for General Motors 8.5" and 8.6" axles require special bearings. For axles with small bearing bores (race O.D. or 2.89"), usually found on vehicles prior to 1999, bearing LM102949 and race LM102911 are required. For axles with large bearing bores (race O.D. of 3.06"), usually found on vehicles from 1999-2013, bearing LM603049 and race LM603012 are required. |
| 19557-010 | All Eaton differentials made for General Motors 8.5" and 8.6" axles require special bearings. For axles with small bearing bores (race O.D. or 2.89"), usually found on vehicles prior to 1999, bearing LM102949 and race LM102911 are required. For axles with large bearing bores (race O.D. of 3.06"), usually found on vehicles from 1999-2013, bearing LM603049 and race LM603012 are required. Manual locking hubs recommended for front axle applications. |
| 19559-010 | All Eaton differentials made for General Motors 8.5" and 8.6" axles require special bearings. For axles with small bearing bores (race O.D. or 2.89"), usually found on vehicles prior to 1999, bearing LM102949 and race LM102911 are required. For axles with large bearing bores (race O.D. of 3.06"), usually found on vehicles from 1999-2013, bearing LM603049 and race LM603012 are required. Manual locking hubs recommended for front axle applications. |
| 19659-010 | All Eaton differentials made for General Motors 8.5" and 8.6" axles require special bearings. For axles with small bearing bores (race O.D. or 2.89"), usually found on vehicles prior to 1999, bearing LM102949 and race LM102911 are required. For axles with large bearing bores (race O.D. of 3.06"), usually found on vehicles from 1999-2013, bearing LM603049 and race LM603012 are required. Manual locking hubs recommended for front axle applications. |
| 19686-010 | Factory housings containing open differentials requires require relief grinding for installation. |
| 19694-010 | Full float applications only. |
| 19817-010 | Bearing LM102949 and race LM102911 and outboard shims are required. |
| 19818-010 | Bearing LM102949 and race LM102911 and outboard shims are required. |
| 19819-010 | Bearing LM102949 and race LM102911 and outboard shims are required. |
| 19821-010 | Bearing LM102949 and race LM102911 are required. |
| 19822-010 | Bearing LM102949 and race LM102911 are required. |
| 225S10 | 225S10 differential replaces the conventional (non-locking) differential internals only. Removal of thrust washers is required. |
| 225SL105A | Will fit OE 3.73 thin gear sets. |
| 225SL131A | Will fit OE 3.73 thin gear sets. |
| 225SL29A | For use with non-thick ring gears only. |
| 225SL56A | Full float applications only. |
| 225SL58A | For Dana 70/70HD, 35 spline applications: if differential case is two-pieces use Detroit Locker #225S18. |
| 225SL58B | For Dana 70/70HD, 35 spline applications: if differential case is two-pieces use Detroit Locker #225S18. |
| 225SL58C | For Dana 70/70HD, 35 spline applications: if differential case is two-pieces use Detroit Locker #225S18. |
| 225SL58D | For Dana 70/70HD, 35 spline applications: if differential case is two-pieces use Detroit Locker #225S18. |
| 910A400 | Rear axle serial numbers and later: Range Rover - suffix F, 88 - suffix G, 109 V8/1 ton - (Salisbury standard), 109 4 cyl. ¾ ton - (Salisbury optional). |
| 910A416 | Front axle serial numbers and later: Range Rover - suffix H, 88/109 4 cyl. ¾ ton - suffix H, 109 V8/1 ton - suffix D. |
| 911A342 | Front application only. Large hub bearing diameter (50 mm) uses Toyota bearing #90368-50006. Will not fit clamshell housing. |
| 911A445 | 1986-1988 7.5" independent front suspension. Will not fit selector disconnect "shift on the fly". Small hub bearing diameter (45 mm) applications only. |
| 912A383 | Rear axle serial numbers 35S18135C or 37S08651B and later. |
| 912A407 | Front axle serial numbers 49L11363C or 57L05188B and later. |
| 912A556 | All Eaton differentials made for General Motors 8.5" and 8.6" axles require special bearings. For axles with small bearing bores (race O.D. or 2.89"), usually found on vehicles prior to 1999, bearing LM102949 and race LM102911 are required. For axles with large bearing bores (race O.D. of 3.06"), usually found on vehicles from 1999-2013, bearing LM603049 and race LM603012 are required. Manual locking hubs recommended for front axle applications. |
| 912A557 | All Eaton differentials made for General Motors 8.5" and 8.6" axles require special bearings. For axles with small bearing bores (race O.D. or 2.89"), usually found on vehicles prior to 1999, bearing LM102949 and race LM102911 are required. For axles with large bearing bores (race O.D. of 3.06"), usually found on vehicles from 1999-2013, bearing LM603049 and race LM603012 are required. Manual locking hubs recommended for front axle applications. |
| 912A584 | Applies to non-axle disconnect style housing only. |
| 912A585 | Applies to non-axle disconnect style housing only. |
| 912A616 | Bearing LM102949 and race LM102910 are required. |
| 913A481 | All Eaton differentials made for General Motors 8.5" and 8.6" axles require special bearings. For axles with small bearing bores (race O.D. or 2.89"), usually found on vehicles prior to 1999, bearing LM102949 and race LM102911 are required. For axles with large bearing bores (race O.D. of 3.06"), usually found on vehicles from 1999-2013, bearing LM603049 and race LM603012 are required. Manual locking hubs recommended for front axle applications. |
| 913A555 | Designed to fit axles cut with 45-degree pressure angles. |
| 913A582 | All vehicles equipped with OE Electric Locker option require axle shaft relief grinding for proper fit. |
| 913A589 | For use with non-thick ring gears only. |
| 913A590 | For use with non-thick ring gears only. |
| 913A591 | Applies to non-axle disconnect style housing only. |
| 913A592 | Applies to non-axle disconnect style housing only. |
| 913A609 | Small hub bearing diameter (45 mm) application only. |
| 913A610 | 32010X bearing allows 913A610 in place of 913A611. |
| 913A701 | For non-c-clip applications only. |
| 914A575 | Detroit Truetrac, 33-spline units for this application are designed to fit axles cut with 45-degree pressure angles. |
| 914A576 | Detroit Truetrac, 33-spline units for this application are designed to fit axles cut with 45-degree pressure angles. |
| 914A583 | Detroit Truetrac, 33-spline units for this application are designed to fit axles cut with 45-degree pressure angles. |
| 914A643 | 2007 and newer vehicles require model years 2003-2006 ring and pinion. |
| 914A690 | For use with 3.25" bearing bore (aftermarket housing). |
| 915A388 | For use with non-thick ring gears only. |
| 915A450 | Will fit OE 3.73 thin gear sets. |
| 915A550 | Full float applications only. |
| 916A427 | Will fit OE 3.73 thin gear sets. |
| 917A732 | Factory oil drain plug may require relief grinding for correct fitment. |
