15.5's wow what a difference W/10" rim build

[rizzo]

15.5/80 R20 is the tire size

I run 16.00 R20 on my 5 tons

 

[sermis]

What is the spacing on your rear tires? I am not sure on how wore my bushings are.

 

[rizzo]

only a couple inches i think. i didn't even look at the truck much, it was dark when we started. I will get pics later during the day.

 

[rdixiemiller]

I want to do much the same with 14.50R20's. They are roughly the same height as my 1100R20's I am running now. Nice job on the wheels! I am a bit luckier, I have access to a lathe big enough to do the job, and a balancing machine.

 

[sermis]

I think if I had a Lathe and rivited rims the balance issue would not have been so bad.

 

[sermis]

Here is an idea on the weights for the rims. This is the same principal as lead clip on weights but permanent. Same thing as how brake drums are balanced. No quarter for reference so how about a chap stick. This is the rim that was 18 ounces out.

 

[rizzo]

I think if I had a Lathe and rivited rims the balance issue would not have been so bad.

I have riveted rims with the center flipped. I did not feel anything out of wack when I was driving it.

 

[sermis]

Rizzo, did you balance your rims?
Do you drive it at road speed?

I moved the Overson lockout hub to the front tandem axel tonight. Will see how it works there.
Will have the wheels and front tires balanced tomorrow and see how it works.
I started building one of the riveted rims. Cut the center and added 3” to it. I just used one of the back pieces from one of the rims I had cut the outside from. Need to cut out the rivets, flip the dish, and weld it up.

 

[rizzo]

drove at 2100 high gear . no balance . no problem

 

[sermis]

I think my balance issue came from torch cutting the outer center and not having a good clean cut.

 

[rizzo]

I'm still running stock width rims. just flipped the centers on the fronts

 

[gringeltaube]

I think my balance issue came from torch cutting the outer center and not having a good clean cut.

Sure it came only from the wheels?
Don't be surprised about how much out of balance our drums are!
After building and (statically) balancing my 11" wheels I also checked each hub&drum as an assembly. Some drums took more than the worst of my tires! But I need to say that those European Contis come out almost perfect. Average radial and lateral run-out was less than 2mm and some didn't even need any weight at all!

 

[sermis]

Rizzo, do you have a way to press the tires on the rim and then install the lock ring or just beat the ring on. I tried one and it was a real pain, pinched the tube.

 

[rizzo]

I used smaller tubes and a specal device that involves a huge threaded rod to pinch the tires while installing the lock ring.

 

[houdel]

Rizzo - I'm not sure I read this thread correctly. Did you say you are running 15.5/80 R20 tires on stock 7" wide M35 rims? Or are you using M135 rims to move the tire sidewall out to give more clearance for the drag link? Did you have a b**ch of a time getting those 15.5/80 R20 tires on a 7" wide rim?

 

[sermis]

I got one on a stock rim. It was a B**CH and pinched the tube. On the 10" rims they went right on with no problems. I have not turned real hard to the right yet but so far no problems. I have not hit the drag link.

 

[houdel]

If I'm reading correctly, it sounds like Rizzo flipped the wheels on the front, i.e. dish out instead of the stock dish in, presumably to gain more clearance for the drag link.

 

[sermis]

The last rim I am building is a riveted with the dish flipped. I cut the center and added the 3" to the back side of the rim insted of the outside of the rim like the others. PIC is posted above. It should move the inside of the tire out approx 2" to help on clerance when turning. If I can find another rivited rim or get one from Barrman I will build the last one.

 

[sermis]

Update on the Overson lockout on the front tandem axel.
I moved the lockout hub from the rear axel to the front axel. With the lockout hub on the rear axel there was spin and tire hop with acceleration from the front tires. Even when acceleration was not aggressive there was spin and hop. With the lockout on the front axel there is still wheel spin when you accelerate hard but not near as much as the front axel spun. There does not seam to be as much tire hop that I had either. If there is some mud or wet pavement it is going to spin unless you really take it easy. I think steering was easier with it on the rear than the front but turning with the large tires and single is still easier that with the duels. I never drove the truck with duels and the lockout hub.

 

[mucekok]

you can order 20x10 double beadlock wheels from usa6x6. i run them on one of my dueces and my suburban along with 395/85r20's with no tubes or balance issues. see mine at mucekokoffroad.com