Ordered 2 lower and 2 upper ACDelco Professional control arms for my '02 Tahoe. The uppers appear genuine with matching numbers and ball joints with blue boots, but I'm having trouble finding anything that matches the numbers on the lower arms.

Is this normal, or was I sent low quality knockoffs?

 

amazon?

 

Of course.

After some searching, they appear to match the product image for Detroit Axle garbage.

 

There ya go. I use Rock Auto for genuine stuff. Sometimes ya get what you pay for...