4th and 5th gear set for 901 gearbox. Porsche 911

4th and 5th gear set for 901 gearbox - Can be used for 4th and 5th gear

Fits:
Porsche 911 - 1965 to 1971
For 901 gearbox

Available with different gear ratios - example - 31:22 (number of teeth on each gear) - 0.71:1 (gear ratio)

31:22 - 0.71:1 (Porsche code "ZD") 
29:22 - 0.76:1 (Porsche code "ZA")  
29:23 - 0.79:1 (Porsche code "Z")  
28:23 - 0.82:1 (Porsche code "Y")  
28:24 - 0.86:1 (Porsche code "X")  
27:24 - 0.89:1 (Porsche code "W")  
27:25 - 0.93:1 (Porsche code "V")  
26:25 - 0.96:1 (Porsche code "U")  
26:26 - 1.00:1 (Porsche code "T")   
25:26 - 1.04:1 (Porsche code "S")   
25:27 - 1.08:1 (Porsche code "R")  
24:27 - 1.13:1 (Porsche code "Q")   
23:27 - 1.17:1 (Porsche code "P")  
23:28 - 1.22:1 (Porsche code "O")  
23:29 - 1.26:1 (Porsche code "N")   
22:29 - 1.32:1 (Porsche code "M")  
22:30 - 1.36:1 

Diagram ref no 4 and 5

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90130291310

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