Andrews Transmission, Fully Assembled, Ratios (2.400, 1.667, 1.380), 23" Setback
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Details
Details
Built for professional-level competition, this fully assembled Andrews transmission offers precision-engineered gearing, proven durability, and race-ready performance. Featuring gear ratios of 2.400 / 1.667 / 1.380 with a 23" setback configuration, this unit delivers exceptional acceleration, balanced weight distribution, and consistent power transfer. Ideal for circle track, dirt late model, and road-race applications, Andrews transmissions are trusted by championship-winning teams worldwide.
Key Features
- Fully assembled Andrews gearbox — ready to install and race
- Close-ratio gearset (2.400 / 1.667 / 1.380) ensures smooth acceleration and consistent RPM control
- 23" setback design improves chassis balance and rear weight bias
- Precision-ground gears and shafts for fast, positive, and reliable shifts
- Built from high-strength, heat-treated materials for long-lasting performance
- Optimized for high-RPM, high-torque racing environments
- Modular design allows easy maintenance and quick gear ratio changes
Gear Ratios
- 1st Gear: 2.400:1
- 2nd Gear: 1.667:1
- 3rd Gear: 1.380:1
- 4th Gear: 1.000:1 (Direct Drive)
Technical Specifications
| Brand | Andrews |
|---|---|
| Assembly | Factory-assembled, race-ready transmission |
| Configuration | 4-speed close-ratio (4th gear direct 1:1) |
| Setback | 23" setback configuration for improved chassis balance and handling |
| Primary Use | Circle track, asphalt late model, and road-race competition |
| Serviceability | Modular design allows for quick inspection, gear swaps, and rebuilds |
| Durability | Precision-machined internals ensure consistent performance and longevity |
What's Included
- Complete Andrews transmission assembly (fully built and tested)
Shifter, linkage, bellhousing, clutch, release bearing, mount, driveshaft, and fluids are not included unless otherwise specified.
Installation & Setup Notes
- Verify chassis clearance and mounting points for 23" setback design
- Use premium racing gear oil per manufacturer specifications
- Check spline compatibility for input/output shafts prior to installation
- Re-torque all fasteners after initial run or test session
- Professional installation recommended for maximum performance
Why Choose Andrews
Andrews transmissions are renowned for strength, precision, and race-winning reliability. Every gearbox is designed to deliver crisp shifts, optimal power transfer, and consistent performance under the toughest conditions. Whether on dirt or asphalt, Andrews products provide the competitive edge that professional racers demand.