RD905
Number of forward gears
5
5
Gear positions
R-0-1-2-3-4-5
R-0-1-2-3-4-5
Recommended max engine torque
650 Nm
650 Nm
Weight
Approximately 30 Kg depending on specification
Approximately 30 Kg depending on specification
1-5 gear
17 mm forged and ground high quality steel, many ratios available
17 mm forged and ground high quality steel, many ratios available
5 Speed rear wheel drive transmission. Adapt the RD90 to virtually any engine/car combination without need for new patterns or extensive redesign.
| Number of forward gears | 5 |
| Gear positions | R-0-1-2-3-4-5 |
| Recommended max engine torque | 650 Nm |
| Weight | Approximately 30 Kg depending on specification |
| 1-5 gear | 17 mm forged and ground high quality steel, many ratios available |
| Applications | Asphalt and gravel rally, hill climb & short sprint |
| Length | Gearbox front face to output flange 394 mm |
| Drop gears | 22 mm forged and ground high quality steel, currently 13 options available, fitted in rear of gearbox allowing for quick change without removing the gearbox |
| Clutch rings (dog rings) | Tractive standard 90 mm forged and ground high quality steel, same for all gears |
| Oil capacity | 1,2 liters |
| Lubrication | Wet sump with GL5 specification oil, recommend Tractive SAE 90 gear oil available in 1 or 4 litre containers |
| Housing design | Modular concept allowing easy configuration changes |
| Housing materials | High grade billet and extruded aircraft spec alloys anodised in black |
| Clutch release | Tractive clutch cylinder available to fit directly to our various front plate designs |
| Reverse gear | Dog ring engagement protected by secondary reverse release lever |
| Cockpit gear lever | Two lengths of return sprung lever available |
| Lever and gearbox connection | Through 8 mm stainless steel rods & a bell crank making a 90-degree connection |
| Bearings | SKF high quality roller bearings for input and main shafts, INA cage bearings for gears |
| Gear position | Single or twin output contactless potentiometer fitted with SureSeal connector |
Easy adaptions to a wide range of rear wheeled cars
The Tractive Modular Concept allows for very easy adaptation of the RD90 gearbox to a wide range of Rear Wheel Drive cars, from MKII Escorts with some 220 Nm to powerful V8’s. Adapt the RD90 to virtually any engine/car combination without need for new patterns or extensive redesign. Easy adaptions to a wide range of cars.
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