On a four-speed box the bearings are under load 25% of the time.
四档变速箱的轴承有25%的时间受载。
2
The Rover-designed two-speed transfer box shares a common case with the four-speed manual gearbox and has a vacuum-operated centre differential.
Rover设计的双速转移系统与四速手动变速箱一样使用同一个箱子，并有一个真空操作中心的细微差别。
3
It wasn’t the optional 7.5-liter Rocket V-8 with a Hurst-shifted four-speed that made this car so cool. Or the forward-facing third-row seat waaaaaaay in the back.