Can I drill out an OEM ‘20 spare to replace stock ‘17

[Hawk1775]

With the original question though I recall what I did on my 2nd generation Sport. I found the same rim as I was running for free and figured why use a steel rim? I got rid of it and carefully cut the holder bracket from the lanyard assembly by slicing a 3/16" slot into one side for the cable to pass thru. Once I had the spare down with some slake, take the holder bracket out/off and the spare was free. I had to have the rim facing up, but it worked, and held, fine for 3 years when I traded it in for an '07.

 

[pacofortacos]

Put the spare on the front and then put that one on the back.

You could do that, but it just seems silly to not put a real tire on the rim.
Also if you are towing heavy and have a WDH, the front also has an increased load.

Besides, with the crazy drivers out there today, I really don't want to be changing out 2 tires on the side of the road.

The 17" spare wheel is fine, just need a real tire vs. the temp spare.
Sure the wheel is a bit narrow for a 285 wide tire, but it is fine to use as a spare and will be able to handle whatever load you have.

For the OP, if that is a spare 20" wheel he has, it is a no brainer - hog the chrome out of the center or knock the cladding off.
Personally, I would hog the hole out of the chrome cladding (no need to touch the aluminum part) and debur the cut chrome of sharp edges.

 

[DodgeDude99]

Hummer H2 rims are 8x6.5 bolt pattern but have a lip in the hub area that is smaller than normal 8 lug hubs. A router with a flush cutting bit is typically used to cut this so we could run them on 8 lug Rams.
Maybe see if part of the hole is the correct size & use a router instead of a grinder. Also by going this route balance isn’t going to be an issue from you grinding more off in on area.

 

[-B-]

modify the bracket by making a key hole shape for the cable

 

[Badger 13]

My 13 Sport with 20" wheels did have a 17" wheel with a "temporary" spare. Yes, it was a taller 17" tire to match the height of the 20" tires, but it was a "temporary" tire. I found a used 20" steel wheel at a scrapyard, and a used tire 20" tire at the local tire shop. It just gives me a warm & fuzzy feeling knowing that I have a "real" tire for a spare.

 

[LouM]

Here is a simple way to keep the 17" rim and have more load capacity then your 20's and the same overall diameter.
https://www.tirebuyer.com/tires/iro...utm_term=4580221851038777&utm_content=Ironman
A LT 235/80R17