OB-2 Partial shaft question

[tjlmbklr]

I want to have a collar matched to a OB-2. If I buy a partial shaft will that be long enough for a 30" shaft? Or does a longer partial need to be bought?

 

[JoeyInCali]

Partials are 30" long.

 

[fatsix]

can they be ordered longer than 30"

 

[tjlmbklr]

Thanks to both of you.