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Sierra 5 speed box


Keith_Morris

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  • 2 weeks later...
  • 2 weeks later...
I built a new Vauxhall powered car in 1997 using the type 9 gearbox. The ratio's are very power even considering the torque and power of the 2 litre engine. For three years I accepted that the box was acceptable, however, third gear broke last summer after 3,500 miles! This is quite a common fault, so I fitted an SPC semi-helical box. This unit whilst expensive has transformed the car. Previously I would strugle to hit much above 30mph in mechanical comfort, now the car shoots up to 55 without any problems
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