UP TO 650 HP
The 4L60E is one of General Motors’ most widely used automatic transmissions, serving in everything from daily-driven trucks and SUVs to high-performance street builds. While the factory transmission is known for several common failure points, the platform offers tremendous upgrade potential when properly rebuilt.
Mad Dog Transmissions completely tears every 4L60E down to the case, replacing all wear components while addressing known weaknesses through upgraded hard parts, hydraulic improvements, and performance-calibrated components. Available in multiple performance levels, the 4L60E can be configured for anything from a reliable daily driver to a serious street and strip vehicle.
Whether you’re replacing a failed factory transmission or building a high-horsepower project, the 4L60E remains one of the most versatile and proven transmission platforms available.
| Year Range | Make | Model | Engine | Notes |
|---|---|---|---|---|
| 1999-2007 | Chevrolet | Silverado 1500 | 4.8L, 5.3L, 6.0L V8 | |
| 1999-2007 | GMC | Sierra 1500 | 4.8L, 5.3L, 6.0L V8 | |
| 1995-2013 | Chevrolet | Tahoe | 5.3L V8 | |
| 1995-2013 | GMC | Yukon | 5.3L V8 | |
| 1998-2002 | Chevrolet | Camaro | 5.7L LS1 V8 | |
| 1998-2002 | Pontiac | Firebird | 5.7L LS1 V8 | |
| 1997-2013 | Chevrolet | Express Van | 4.8L, 5.3L, 6.0L V8 |
| Problem Name | Problem Description |
|---|---|
| Sun Shell Failure | Factory sun shells are prone to cracking and stripping under increased torque loads. |
| 3-4 Clutch Failure | Insufficient clutch capacity and heat buildup commonly cause premature clutch failure. |
| 1870 Trouble Code | Valve body wear can cause converter clutch slip and trigger GM code P1870. |
| Servo Wear | Factory servos lose holding capacity over time, resulting in soft shifts and band wear. |
| Pump Wear | Pump wear reduces hydraulic pressure and contributes to clutch slippage and transmission failure. |
| Gear | Ratio |
|---|---|
| 1st | 3.06:1 |
| 2nd | 1.63:1 |
| 3rd | 1.00:1 |
| 4th | 0.70:1 |
| Reverse | 2.29:1 |
GM put the 4L60E in the 1999-2007 Silverado and Sierra 1500, the 1995-2013 Tahoe and Yukon, the 1998-2002 Camaro and Firebird, and the 1997-2013 Express van, among others. Call us with your year and engine and we'll confirm the fit.
Yes. A lot of our 4L60E builds go behind LS swaps, in older Chevy trucks, Blazers, Camaros and Corvettes as well as late-model trucks. Tell us your engine and horsepower at checkout and we build to it.
Pick by horsepower. The Punisher handles up to 500 HP, the Godfather up to 650 HP and the Dominator up to 750 HP.
There's no core charge on most units.
Every Mad Dog 4L60E carries a 1-year unlimited-mileage warranty, shipped to you or installed here.
Yes. P1870 usually comes from valve body wear that lets the converter clutch slip. Every Mad Dog 4L60E is torn down to the case, and the valve body is addressed in the rebuild.
Yes. Every 4L60E build comes in 2WD or 4WD.