No, I got a Coleman rack included with one of my roof racks. Sold it to Circmand. I can't quite recall the spacing on the floor of the basket, but I think the Yakima spare tire holder could be made to fit, like Mav did.

I sure prefer having a couple chunks of steel holding my 78 lb wheel/tire combo rather than even a ratchet strap. When I was having some custom ratchet straps made (you know the one with purple paw prints on them...isn't that what everybody gets? )...the manufacturer had about 4 or 5 different products, made of a few different materials, some would actually stretch a few percentage points when wet, some would degrade faster in sun, some colors would run in rain, etc.. They were really inexpensive, even custom made.
http://www.strapworks.com/Default.asp?Redirected=Y
Here's the 6 different types explained:
http://www.strapworks.com/webbing_an...brics_s/20.htm

So just saying "ratchet strap" generically, may not be enough. I'd certainly want to know that I had the strongest ones holding down my tire/wheel.
I have the Yakima spare tire unit AND also a 2" wide polyester ratchet strap holding mine down. Can never be too safe. Bad enough that I've changed the center of gravity a bit by putting that weight up there, so I dayam sure want it to stay up there!