Looks like the 07 and 09 are the same part # for the .375's
Polaris : S07PS6FS/FSA 600 HO SWITCHBACK F/O (2007)
SKU: 7041942-067
SPRING-TORS.375SQ/77°,LH,BLK [Opt] [Opt]
Polaris : S09PM8/PG8/PH8 800 RMK/ES/800 DRAGON RMK 155/163/ES/EURO ALL OPTIONS (2009)
SKU: 7041942-067
SPRING-TORS.375SQ/77°,LH,BLK [Opt] [Opt]
So i wonder since it is an option and my dealer knows i am a fat basterd, will the 375's come with or be "set -up" on the new sled? if so then, i could try them out and if i need the 405's put the new 375's on the 07!