Aluminum / XFE NNBS Front Suspension Rebuild

[992dr]

@petethepug Man I'm not sure if this has been covered.
Do the hubs from the 07/14 fit the newer aluminum hubs?
I'm ordering new ones now but put it on hold until it is confirmed they fit the newer aluminum XFE spindles.

Thanks

 

[petethepug]

We narrowed down the terminology to hubs and knuckles. In which case all the hubs on our 1/2 ton SUV are cast iron.

The knuckles are either aluminum or cast iron. Both versions bolt on to the cast iron hubs.

The difference between the alum & iron knucks is the holes where the LCA mount to them. Alum knucks have a larger diameter hole for a the larger ball joint that the Alum LCA have.

Yup, the aluminum and cast iron LCA both have different sized ball joints but, both the alum & cast iron UCA have the same size ball joints.

 

[992dr]

I get so confused with some of this terminology haha. And I always forget that it doesn't have spindles.
So, a Timken wheel bearing hub assembly for an 07/14 will bolt to the newer style aluminum knuckles?

 

[petethepug]

Correct.

Pretty sure the alum hub has a larger diameter tapered hole because it needs more material to have the same strength as the smaller iron hubs mount hole.

Oh yea, the tie rod end mount hole on the alum knuck is a different size too. It needs a 15-20 specific tie rod end from GM’s electric rack.