Set default gw

[Efren Bravo]

Hi, 
 
I have two gateways on my network, gw1:x.x.x.x and gw2: y.y.y.y.  
 
The problem is: The gw1 is by default and every time I restart fBSD I 
have to set route change default y.y.y.y.  
 
How can I set this change permanently? 
 
Thanks a lot...