Manual transmissions are identified by the number of forward gears and the measured distance between the centerline of the output shaft and the counter gear.
The 6-speed manual transmission (RPO M10), used in SSR, incorporates the following features:
| • | An aluminum case |
| • | Fully synchronized gearing with an enhanced synchronizer cone arrangement: |
| - | Triple-cone: FIRST, SECOND |
| - | Double-cone: THIRD, FOURTH, FIFTH, SIXTH |
| - | Single-cone: REVERSE |
| • | An internal shift rail mechanism |
| • | Tapered roller bearings supporting the mainshaft and countershaft |
| • | Caged roller bearings under all speed gears |
| • | Solenoid inhibit of REVERSE gear during predefined forward motion |
These features combine to yield a rugged, reliable system capable of handling input torques of up to 542 N·m (400 lb ft) for the M10.
The gear ratios are as follows:
Gear | M10 Ratio (:1) |
|---|---|
FIRST | 3.01 |
SECOND | 2.07 |
THIRD | 1.43 |
FOURTH | 1.00 |
FIFTH | 0.84 |
SIXTH | 0.57 |
REVERSE | 2.90 |
A reverse lockout system, consisting of a reverse lockout solenoid which operates a reverse lockout mechanism, is utilized to prevent shifting into REVERSE gear when the vehicle is moving forward at a speed of 5 km/h (3 mph) or more.