Which base for front turn signal lights?

[07Burb]

I'm getting ready to order LEDs from vleds.com for the front turn signals. They are asking me if my base for the light is a "standard" base or a "CK". Does anyone know which base I should have on a 2007 Suburban? I'm at work right now or I'd check myself and I want to get these ordered today.

Thanks in advance for your help

 

[07Burb]

Disregard. It appears I just need the Standard base bulbs