does the 07 sierra classic use 2006 parts

[2007gmc1500]

Hey im new to the forum i recently got a 07 sierra classic, it has got the p0430 code and im looking at cats but most sites i look at dont say if parts of for 07 or 07 classic. would 2006 cats work on a 2007 classic or are they different

[Ian Mills]

The '07 classic is the same as a 2006. Essentially GM extended the 2006 production run into 2007 and called it the classic. Just make sure you get the cats for the right engine.