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  • Differential Case Design Type
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EATON

Eaton Detroit Truetrac Differentials

4.77 out of 5 stars 508 Customer Reviews

Eaton Detroit Truetrac differentials use a patented design of parallel-axis planetary helix gears to provide a quiet, automatic splitting of torque. They perform like a limited-slip differential under normal driving conditions, automatically transferring torque to the wheel with better traction when ground conditions warrant. These replacement units are available for dozens of axle applications.

Showing In Stock Items. Show All 14 Items.

Results 1 - 14 of 14

Eaton Detroit Truetrac 28 Spline Differential GM 8.5 Inch 912A556

Eaton Detroit Truetrac 28 Spline Differential GM 8.5 Inch 912A556

Eaton Detroit Truetrac 28 Spline Differential GM 8.5 Inch 912A556

Differential, Eaton Detroit Truetrac, 28-Spline, GM, 8.5 in., Rear, Each

Part Number: ETN-912A556

4.84 out of 5 stars ( 31 )

Estimated Ship Date: Today

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Eaton Detroit Truetrac 30 Spline Differential GM 8.875 Inch (12-bolt), truck 913A315

Eaton Detroit Truetrac 30 Spline Differential GM 8.875 Inch (12-bolt), truck 913A315

Eaton Detroit Truetrac 30 Spline Differential GM 8.875 Inch (12-bolt), truck 913A315

Differential, Eaton Detroit Truetrac, 30-Spline, GM, 12-Bolt Truck, Each

Part Number: ETN-913A315

4.56 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Eaton Detroit Truetrac 30 Spline Differential Dana 44 913A589

Eaton Detroit Truetrac 30 Spline Differential Dana 44 913A589

Eaton Detroit Truetrac 30 Spline Differential Dana 44 913A589

Differential, Eaton Detroit Truetrac, Limited Slip, 30-Spline, 3.73:1 and Down Only, Dana 44, Each

Part Number: ETN-913A589

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Eaton Detroit Truetrac 27 Spline Differential Dana 30 912A585

Eaton Detroit Truetrac 27 Spline Differential Dana 30 912A585

Eaton Detroit Truetrac 27 Spline Differential Dana 30 912A585

Differential, Eaton Detroit Truetrac, 27-Spline, Dana 30, Each

Part Number: ETN-912A585

4.67 out of 5 stars ( 15 )

Estimated Ship Date: Today

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Eaton Detroit Truetrac 30 Spline Differential GM 8.875 Inch (12-bolt) 913A555

Eaton Detroit Truetrac 30 Spline Differential GM 8.875 Inch (12-bolt) 913A555

Eaton Detroit Truetrac 30 Spline Differential GM 8.875 Inch (12-bolt) 913A555

Differential, Eaton Detroit Truetrac, Limited Slip, 30-Spline, GM, 8.875 in., 12-Bolt, Each

Part Number: ETN-913A555

4.75 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Eaton Detroit Truetrac 28 Spline Differential Ford 9 Inch 912A587

Eaton Detroit Truetrac 28 Spline Differential Ford 9 Inch 912A587

Eaton Detroit Truetrac 28 Spline Differential Ford 9 Inch 912A587

Differential, Eaton Detroit Truetrac, Limited Slip, 28-Spline, Ford, 9 in., Each

Part Number: ETN-912A587

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Eaton Detroit Truetrac 28 Spline Differential Ford 8 Inch 912A616

Eaton Detroit Truetrac 28 Spline Differential Ford 8 Inch 912A616

Eaton Detroit Truetrac 28 Spline Differential Ford 8 Inch 912A616

Differential, Eaton Detroit Truetrac, Limited Slip, 28-Spline, Ford, 8 in., Each

Part Number: ETN-912A616

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Eaton Detroit Truetrac 33 Spline Differential GM 8.875 Inch (12-bolt) 914A576

Eaton Detroit Truetrac 33 Spline Differential GM 8.875 Inch (12-bolt) 914A576

Eaton Detroit Truetrac 33 Spline Differential GM 8.875 Inch (12-bolt) 914A576

Differential, Eaton Detroit Truetrac, 33-Spline, GM 8.875 in., Each

Part Number: ETN-914A576

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Eaton Detroit Truetrac 30 Spline Differential Dana 44 913A590

Eaton Detroit Truetrac 30 Spline Differential Dana 44 913A590

Eaton Detroit Truetrac 30 Spline Differential Dana 44 913A590

Differential, Eaton Detroit Truetrac, Limited Slip, 30-Spline, 3.92:1 and Up Only, Dana 44, Each

Part Number: ETN-913A590

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Eaton Detroit Truetrac 30 Spline Differential Chrysler 8.75 Inch 913A572

Eaton Detroit Truetrac 30 Spline Differential Chrysler 8.75 Inch 913A572

Eaton Detroit Truetrac 30 Spline Differential Chrysler 8.75 Inch 913A572

Differential, Eaton Detroit Truetrac, 30-Spline, Chrysler, 8.75 in., Each

Part Number: ETN-913A572

4.58 out of 5 stars ( 12 )

Estimated Ship Date: Today

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Eaton Detroit Truetrac 31 Spline Differential Chrysler 9.25 Inch 913A368

Eaton Detroit Truetrac 31 Spline Differential Chrysler 9.25 Inch 913A368

Eaton Detroit Truetrac 31 Spline Differential Chrysler 9.25 Inch 913A368

Differential, Eaton Detroit Truetrac, 31-Spline, Chrysler 9.25 in., Each

Part Number: ETN-913A368

4.67 out of 5 stars ( 12 )

Estimated Ship Date: Today

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Eaton Detroit Truetrac 30 Spline Differential Dana 44/44 IFS 913A592

Eaton Detroit Truetrac 30 Spline Differential Dana 44/44 IFS 913A592

Eaton Detroit Truetrac 30 Spline Differential Dana 44/44 IFS 913A592

Differential, Eaton Detroit Truetrac, Limited Slip, 30-Spline, Dana 44, Each

Part Number: ETN-913A592

Not Yet Reviewed

Estimated Ship Date: Today

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Eaton Detroit Truetrac 33 Spline Differential GM 8.875 Inch (12-bolt) 914A575

Eaton Detroit Truetrac 33 Spline Differential GM 8.875 Inch (12-bolt) 914A575

Eaton Detroit Truetrac 33 Spline Differential GM 8.875 Inch (12-bolt) 914A575

Differential, Eaton Detroit Truetrac, 33 Spline, GM 8.875 in., Each

Part Number: ETN-914A575

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Eaton Detroit Truetrac 33 Spline Differential Chrysler 8.75 Inch 914A583

Eaton Detroit Truetrac 33 Spline Differential Chrysler 8.75 Inch 914A583

Eaton Detroit Truetrac 33 Spline Differential Chrysler 8.75 Inch 914A583

8.75 TRUETRAC DIFFERENTIAL

Part Number: ETN-914A583

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

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Estimated Ship Date: Mar 12, 2026 if ordered today

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