Ring and pinion 8:41 (930.34) 4 speed 78-88

The 930 gearbox can be made to work very well by changing ring & pinions. Lowering the final drive from 9:38 to 8:41 will pull your car much harder. This is an 18% change that really wakes the 930 up. Only for 4-Speed Gear-box typ 930.34._x000B__x000B_This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.