1999 Transmission & Drivetrain

Differential, Eaton Detroit Truetrac, 30-Spline, GM, 10.5 in. Ring Gear, 4.10 and Lower Ratios, Each

Part Number: ETN-915A545

4.58 out of 5 stars ( 12 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Eaton Detroit Truetrac, 33-Spline, GM, 14-Bolt, 9.5 in., Each

Part Number: ETN-914A538

4.44 out of 5 stars ( 9 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

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 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Eaton Detroit Truetrac, 35-Spline, Ford, 10.25 in./10.5 in., Full Floater Only, Each

Part Number: ETN-915A550

4.88 out of 5 stars ( 33 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

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: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Eaton Detroit Truetrac, 30-Spline, GM, 10.5 in. Ring Gear, 4.56 and Higher Ratios, Each

Part Number: ETN-915A547

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Eaton Detroit Truetrac, 35-Spline, Dana 80, 11.5 in. Ring Gear, 4.10 + up, Each

Part Number: ETN-915A450

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Eaton Detroit Truetrac, Limited Slip, 29-Spline, Chrysler, 8.25 in., Each

Part Number: ETN-912A553

5.0 out of 5 stars ( 3 )

• Free Shipping
• $75.00 Summit Bucks

Differential, Eaton Detroit Truetrac, Limited Slip, 27-Spline, Toyota, 7.5 in., Each

Part Number: ETN-911A445

Not Yet Reviewed

Estimated Ship Date: Dec 10, 2025 if ordered today

• Drop Ship
• Free Shipping
• $75.00 Summit Bucks
• Special Order

Differential, Eaton Detroit Truetrac, Limited Slip, 24-Spline, Land Rover, Rear, Each

Part Number: ETN-912A383

Not Yet Reviewed

Estimated Ship Date: Dec 10, 2025 if ordered today

• Drop Ship
• Free Shipping
• $75.00 Summit Bucks
• Special Order

Differential, Eaton Detroit Truetrac, Limited Slip, 24-Spline, Land Rover, Front, Each

Part Number: ETN-912A407

Not Yet Reviewed

Estimated Ship Date: Dec 10, 2025 if ordered today

• Drop Ship
• Free Shipping
• $75.00 Summit Bucks
• Special Order

Differential, Detroit Truetrac, 37-Spline, Dana 80, 4.10:1+ Higher, Each

Part Number: ETN-916A427

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 10, 2025 if ordered today

• Drop Ship
• Free Shipping
• $75.00 Summit Bucks
• Special Order

Differential, Detroit Truetrac, 37-Spline, Dana 80, 3.73:1+ Lower, Each

Part Number: ETN-916A566

Not Yet Reviewed

Estimated Ship Date: Dec 10, 2025 if ordered today

• Drop Ship
• Free Shipping
• $75.00 Summit Bucks
• Special Order

Differential, Eaton Detroit Truetrac, 28-Spline, Ford, 8.8 in., Each

Part Number: ETN-912A563

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Dec 10, 2025 if ordered today

• Drop Ship
• Free Shipping
• $75.00 Summit Bucks
• Special Order

4L80E ULT MAST OVHL KIT 97-UP

Part Number: TCI-279006

Not Yet Reviewed

Estimated Ship Date: Dec 23, 2025 if ordered today

• Drop Ship
• Free Shipping
• $90.00 Summit Bucks
• Special Order

DIFFERENTIAL KIT,R/AXL

Part Number: ADO-12470494

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

• Free Shipping
• $20.00 Summit Bucks
• Special Order

Auto Trans Case

Part Number: ADO-24219116

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

• Free Shipping
• $20.00 Summit Bucks
• Special Order

Auto Trans Output Carrier

Part Number: ADO-24241409

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

• Free Shipping
• $20.00 Summit Bucks
• Special Order

GEAR KIT,DIFF RING & PINION (4.10 RATIO)

Part Number: ADO-88967095

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

• Free Shipping
• $20.00 Summit Bucks
• Special Order

GEAR KIT,FRT DIFF DRV PINION

Part Number: ADO-12479329

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

• Free Shipping
• $20.00 Summit Bucks
• Special Order

Differential, Detroit Truetrac, 28-Spline, Ford, 7.5 in., Each

Part Number: ETN-912A316

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 10, 2025 if ordered today

• Free Shipping
• $75.00 Summit Bucks
• Special Order

Differential, Detroit Truetrac, 27-Spline, Dana 30, 3.54:1 + Lower, Each

Part Number: ETN-912A584

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 10, 2025 if ordered today

• Free Shipping
• $75.00 Summit Bucks
• Special Order