Mikronized

I need some way to hold a 33x12.50 spare but I don't have the money for a whole new rear bumper/tire carrier right now

I was checking out this thread https://www.yotatech.com/forums/f2/new-rear-tire-carrier-pics-32607/ and I like the idea behind it..
but his version is a bit weak and prone to breakage...


what would be the very BEST way to build a tire carrier like this but have it be super strong besides just reinforcing his design?

also would it work to change the design from his to hold a hi-lift and a plate like so?


thanks guys

shazaam

ha ha .. this is great!

I dropped it off at the welder to get the reinforcements done. But it won't be done anytime soon. I don't need it for another 2 months or so.

good luck with this man!

Mikronized

hey thanks dude!
Keep all of us posted on what you end up doing with yours.

shazaam

yeah the guy said it would be about two weeks before he can get back to it. and I have to run the design by Brian (waskillywabbitt) first. But it should be a lot better.

I have some ideas for what your trying to do .. have to step out right now, but I'll post them a bit later

Mikronized

where you going to post those ideas?

ilion

I wonder if using a thick walled tubing and having it mandrel bent by a shop would work out better?

It seems to me that keeping the tubing solid and curved rather than welded at a joint might increase the material strength. Or, at least, remove the stress inherent in welding.

For instance, a one and a half (1 1/2") inch round tubing bent to shape with the tire mount welded on. You'll have to use your imagination to see a basic 'S' shaped carrier.

Of course, it would still have to be welded onto a 2" square tube to fit in the receiver...

:sigh:

SEAN_at_TLT

No matter what you are going to have a lot of weight spread out across a wide area supported by only a 2" wide mounting point located far below. This will act as a powerful lever no matter what you do to it. But if you build it strong it can be made to work okay for low speed off-road situations. I would hesitate to run it on road too often due to liabilities. It will also rattle more than standard swing away which are already known to rattle a lot. Until you can get a custom rear bumper it will make for a pretty good band-aid solution. Think of it like a hitch mounted bike rack with a couple of heavy duty bikes on it. Heck you might even be able to modify one of those to work for you. A 4 bike rack will easily carry 150lbs. If you can find a cheap one used that might be the ticket. Some of them even swing out to the side.

Mikronized

I see what you are saying about the weight, I figured I would weld like a ring to the top and use some sort of strap to connect it to the roof rack that way that top leverage isn't there.

like this:


(yes I know the side view looks like a Xterra and the back looks like a jeep)

would that work?

SEAN_at_TLT

I took your well engineered CAD drawings and ran stress analysis on them. This is what I came up with. It looks like you have a .08% failure rate with the straps attached and a 17.84% failure rate without them. So i'd say...yup that'll work

-Sean

Mikronized

ha ha.. cool.

glad you could run that test for me

ravencr

I'm going to be doing a version of this eventually too, but mine will fold down to the side.

Chris