Heavy Trailer Axle

I've looked for spacer/adapter. But it would have to be custom made. Then you're still getting into buying another wheel/tire.

I know it's expensive but the 225 wheels and a pair of used 22.5's will probably still come out the cheapest and more importantly the easier option.
 
Ok measuring from center to across to edge of hole is 7" with the bolt holes at 1.5 across the whole thing is 10" What we did at the farm I worked at was cut out center plate since its dual rim an weld it to new rim drill the holes and be done. Since balance was not critical lasted till the farm was sold 20 years later. Now these look like what you have except not split rims and 19.5 we can bring them to Forest City. They do have tyres on them.
 
I think somewhere in my searching I found that they are 5 x 7.25 lug pattern on the P30 motorhomes. Forgot where I found that at. (I need to start bookmarking this stuff)

Going to talk with the paw-in-law and see what he says. Might try to find a shop that will mount the tires. I know the guy that works on our bus tires says he still mounts the split rims on our busses.
 
I have a 94 3500 Chevy Dump truck with what looks like the same bolt pattern. The rear wheels have 10 lugs while the fronts have a huge 5 lug pattern.
 
i have a couple m105 military trailers for sale. will probably haul all the weight you could put in it. pm me if youre interested
 
When I first starting thing about this project I was thinking M105 but I think i got it confused with the one that they pull behind the Humvee. I think it could be an option.
 
BigBody79 said:
I've looked for spacer/adapter. But it would have to be custom made. Then you're still getting into buying another wheel/tire.

I know it's expensive but the 225 wheels and a pair of used 22.5's will probably still come out the cheapest and more importantly the easier option.
Click to expand...

Unless you have the 22.5 tires, they can be fairly expensive.

I still believe i would cut out the centers and weld them in some 16s.
 
How do you determine the radius of the circle in which the middle of each lug hole passes through?

Then what are the chords from one point to the next?

I can't find this info even for a 5x4.5 pattern.
 
you mean like this:

awww.gtsparkplugs.com_images_EZ_measure_wheel_bolt_5_lug.jpg
 
Yea but with more accuracy

Come to find out the 5x8" lug pattern has an 8" diameter. And a 8x225mm has a 225mm diameter.

Guessing that's why they give it in those terms.

Got it all figured out to redrill the lug holes. The studs are 3/4" should the holes in the rim be 1/64 bigger or 1/16 bigger.
 
Depends on the shank diameter, but try on size first, and if they won't seat, try 1/64" over and if they won't seat, then go bigger. The ones I've done before were in aluminum and I just did them on size. Stepping up 1/64" should be doable freehand with a drill.
 
image.jpeg
Redrilled one wheel just to make sure it would work

Now I just need to drill the other one.

Edit: one stud was already broke.
 
Last edited:
So predictably this has only gone ok. New wheels are drilled and fit. However old wheels were lug centric and new wheel is hub centric so it's no centric at all right now. Max speed was 20-25. Has anyone used a hub centric adapter to align this type of problem.

Two other questions:

Does the taper to a lug nut offer any type of locking strength or is it mearly for alignment?

How much weaker is the rim now that it has five additional holes?
 
Back
Top