Fuller RT510
RT510 is a 10-speed with 2 reverse speeds manual transmission created by Fuller and used in Chevrolet and GMC cars.
The Fuller RT510 is a unique transmission with a twin-countershaft design. This feature enables the countershafts to split engine torque so that each one carries a lesser load than a single countershaft design. The mainshaft „floats“ between the countershafts, thus eliminating gear bushing and shaft sleeves which could wear out.
The ten speeds are progressively spaces and controlled by one shift lever in conjunction with a button on the shift lever. The main transmission has five speeds with conical clutching teeth on the gears for easy shifting. A two-speed range section on the back of the main unit is shifted by an air cylinder which is controlled by the button on the shift lever. The range section is pre-selected with the button by the driver and automatically shifts itself when the transmission is moved to neutral.
The main box is first shifted through all five speeds with the range section in low. The range section is then places in high and the same ear pattern is repeated for the other five speeds.
This transmission usually requires 18 pints of lubricant.
| Parameter | Value |
|---|---|
| Type | Manual |
| Gears forward | 10 |
| Gears forward ratios | 9.00:1, 7.02:1, 5.48:1, 4.26:1, 3.43:1, 2.62:1, 2.05:1, 1.60:1, 1.24:1, 1:1 |
| Gears reverse | 2 |
| Gears reverse ratios | 9.50:1, 2.76:1 |
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