Easier/quicker gear changes

[Bob Culver]

Those with just a casual interest in all this may be interested to note that the 4.9 cars in 2nd pull about the same rpm as the 5.25 cars in 3rd of the synchro boxes. The latter corresponds to 50 mph in top which many owners of ordinary cars may consider a resonable sustained maximum. 
The 4 speed crash box is considerably lower geared in 3rd.