I take it the 373 was the B737?
The limits depend on the runway condition, and if you are takeing off or landing.
On the B737-800NG we use,
In Dry Good conditions with a runway coeficient of 0.41 or better we have a Max limit of 35kts for both Takeoff and Landing. The limits decrease as the runway conditions deteriorate down to 8kts for Takeoff and 9kts for Landing when the runway condition is Medium/Poor and the coeficient is 0.26.
If the runway is classed as poor with a coeficent of less than 0.26 then Takeoff and Landing is prohibited.
The limits vary all the way down the scale.
Hope this helps......Over to the the Airbus guys.......