If you're interested in building your own rear bumper tire carrier kit, I stumbled across this which looks interesting. No affiliation, and I've never used this.
Herb
If you are looking to Build your own Swing out tire carrier, and make it the best you can. We have the perfect solution for you. The EMS Offroad Tire Carrier kit is the answer for you. With the exception of the steel frame work, this is the most inclusive kit on the market!
Includes:
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2000 Lbs Latch
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Lock Nuts
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Catch
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Weld thru Spindle
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Tire Carrier Hub
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Bearings and Seals
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Dust Cover
- Tire plate w/5 on 4.5"; 5 on 5.0"; 5 on 5.5" ; 6 on 5.5"; 8 on 6.5" 8 on 170mm BHC
- Tire Carrier Poly Urethane Stop
The EMS Offroad Tire Carrier Kits are the only kits that will allow for professional results, without searching all over for the hard to find parts. If you need a diffrent kit, or individual parts, we keep these items in stock and ready to ship.
Tire Carrier Kit - EMS Offroad