If you are running big wheels and tyres, the three bolt upper arm should have 1/2” more clearance allowing bigger wheels and tyres.
Steve, I believe WCCC has the Scott Drake units. I don’t think we have any Moog parts. As I work over in the wrecking yard side I don’t deal with any of the retail stuff, unless it’s for me! Found all the Moog stuff in a parts car Don bought, still new in the boxes and he made me a good deal!