Aftermarket Spare Wont Fit on Polaris Cage Extension

So I purchased new wheels and tires and my spare will no longer fit on the bumper/cage extension. The round flange that holds it to the back is too small (
3 3/4") and goes right through the hole in the rim. I like the spare in this location because it does not take up bed space but I am open for options. I prefer the mount to use the lug holes so it doesn’t scratch up or crack the wheel. Here is my wheel: Make STI Model #HD6, Bolt Pattern 4/156, Offset 4+3, Size 14×7. Please see attached photos. HELP

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Aftermarket Spare Wont Fit on Polaris Cage Extension

So I purchased new wheels and tires and my spare will no longer fit on the bumper/cage extension. The round flange that holds it to the back is too small (
3 3/4") and goes right through the hole in the rim. I like the spare in this location because it does not take up bed space but I am open for options. I prefer the mount to use the lug holes so it doesn’t scratch up or crack the wheel. Here is my wheel: Make STI Model #HD6, Bolt Pattern 4/156, Offset 4+3, Size 14×7. Please see attached photos. HELP

Attached Thumbnails

Click image for larger version

Name:	IMG_1821.JPG
Views:	N/A
Size:	108.8 KB
ID:	156250
 

Click image for larger version

Name:	IMG_1818.JPG
Views:	N/A
Size:	110.3 KB
ID:	156258
 

Click image for larger version

Name:	IMG_1819.JPG
Views:	N/A
Size:	119.1 KB
ID:	156266