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1971 Pontiac GTO Differential - Rear 8 Cyl 6.6L Eaton

28 Spline; 1.20 in. Axle Shaft Diameter; 2.73 And Up Ring Gear Pinion Ratio; 8.5 in. GM 8.5/8.6 in. Eaton Differentials Require Special Bearings~Axles w/Small Bearing Bores OD 2.89 in. Req. PN[LM-102949/LM-102911]~Axles w/Large Bearing Bores OD 3.06 in. Req. PN[LM603049/LM603012]
Detroit Truetrac® Differential; 28 Spline; 1.20 in. Axle Shaft Diameter; 2.73 And Up Ring Gear Pinion Ratio; Rear; 8.5 in.;
Detroit Truetrac® Differential
Features:
- Helical Gear Limited Slip Differential
- Optimized Torque Bias Ratios Deliver Max Acceleration And Handling
- Automatic Engagement
- Works In Forward And Reverse
- Ideal For Most Vehicles
- Durable
- Smooth
- Quiet Operation
- No Special Lubrication Or Friction Modifiers Needed
The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in forward and reverse. Its versatility makes Detroit Truetrac the ideal traction solution for almost any type of vehicle.

Additional Fitment Information:

Vehicle	Block	CC	Position	Engine	CID
1971 - Pontiac GTO	V	6555	Rear	8 Cyl 6.6L	400

2 In Stock

Limited-Time Offer

$1,196.86 USD

$1,436.23 USD

1971 Pontiac Firebird Differential - Rear 6 Cyl 4.1L Eaton

28 Spline; 1.20 in. Axle Shaft Diameter; 2.73 And Up Ring Gear Pinion Ratio; 8.5 in. For Axles w/Small bearing Bores Race O.D. 2.89 in. LM102949/LM102911 Req.~Axles w/Large Bearing Bores Race O.D. 3.06 in. LM603049/LM603012 Req.
Detroit Truetrac® Differential; 28 Spline; 1.20 in. Axle Shaft Diameter; 2.73 And Up Ring Gear Pinion Ratio; Rear; 8.5 in.;
Detroit Truetrac® Differential
Features:
- Helical Gear Limited Slip Differential
- Optimized Torque Bias Ratios Deliver Max Acceleration And Handling
- Automatic Engagement
- Works In Forward And Reverse
- Ideal For Most Vehicles
- Durable
- Smooth
- Quiet Operation
- No Special Lubrication Or Friction Modifiers Needed
The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in forward and reverse. Its versatility makes Detroit Truetrac the ideal traction solution for almost any type of vehicle.

Additional Fitment Information:

Vehicle	Block	CC	Position	Engine	CID
1971 - Pontiac Firebird	L	4097	Rear	6 Cyl 4.1L	250

2 In Stock

Limited-Time Offer

$1,196.86 USD

$1,436.23 USD

1971 Pontiac Bonneville Differential - Rear 8 Cyl 5.7L Eaton

30 Spline; 1.29 in. Axle Shaft Diameter; 3.08 - 3.90 Ring Gear Pinion Ratio; Rear 8.875 in. Designed To Fit Axles Cut w/45deg. Pressure Angles
Detroit Truetrac® Differential; 30 Spline; 1.29 in. Axle Shaft Diameter; 3.08 - 3.90 Ring Gear Pinion Ratio; Rear 8.875 in.;
Detroit Truetrac® Differential
Features:
- Helical Gear Limited Slip Differential
- Optimized Torque Bias Ratios Deliver Max Acceleration And Handling
- Automatic Engagement
- Works In Forward And Reverse
- Ideal For Most Vehicles
- Durable
- Smooth
- Quiet Operation
- No Special Lubrication Or Friction Modifiers Needed
The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in forward and reverse. Its versatility makes Detroit Truetrac the ideal traction solution for almost any type of vehicle.

Additional Fitment Information:

Vehicle	Block	CC	Position	Engine	CID
1971 - Pontiac Bonneville	V	5733	Rear	8 Cyl 5.7L	350

1971 Pontiac GTO Differential - Rear 8 Cyl 7.5L Eaton

30 Spline; 1.29 in. Axle Shaft Diameter; 3.08 - 3.90 Ring Gear Pinion Ratio; Rear 8.875 in. Designed To Fit Axles Cut w/45 Deg. Pressure Angles
Detroit Truetrac® Differential; 30 Spline; 1.29 in. Axle Shaft Diameter; 3.08 - 3.90 Ring Gear Pinion Ratio; Rear 8.875 in.;
Detroit Truetrac® Differential
Features:
- Helical Gear Limited Slip Differential
- Optimized Torque Bias Ratios Deliver Max Acceleration And Handling
- Automatic Engagement
- Works In Forward And Reverse
- Ideal For Most Vehicles
- Durable
- Smooth
- Quiet Operation
- No Special Lubrication Or Friction Modifiers Needed
The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in forward and reverse. Its versatility makes Detroit Truetrac the ideal traction solution for almost any type of vehicle.