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Eaton Detroit Truetrac Differentials

4.78 out of 5 stars 501 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.

Results 1 - 9 of 9

Differential, Eaton Detroit Truetrac, Limited Slip, 31-Spline, Ford, 8.8 in., Each

Part Number: ETN-913A561

4.86 out of 5 stars ( 28 )

Estimated Ship Date: Today

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Differential, Eaton Detroit Truetrac, 31-Spline, Ford 9 in., Each

Part Number: ETN-913A586

4.75 out of 5 stars ( 12 )

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Differential, Eaton Detroit Truetrac, 1.370 in. Axle Shaft Diameter, 34-Spline, Ford, 9.75 in., Each

Part Number: ETN-913A477

4.71 out of 5 stars ( 14 )

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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 )

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Differential, Eaton Detroit Truetrac, Limited Slip, 34-Spline, 3.31:1 and Higher Only, Ford 8.8, Each

Part Number: ETN-917A739

Not Yet Reviewed

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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 )

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

Part Number: ETN-913A592

Not Yet Reviewed

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

Part Number: ETN-913A591

Not Yet Reviewed

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Differential, Eaton Detroit Truetrac, Limited Slip, 31-Spline, All Ratios, Ford 8.8, Each

Part Number: ETN-917A738

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

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