Mounting 445s on M920

[AMgeneral3945]

We setup a M920 for hauling liquid manure on the farm. I put 395/85r20 on the front and it worked well, just had to grind the hubs some. But on the rears I kept the 11.00r24 and had them retreaded with a more aggressive tread. The thing I don't like is the dual 11.00r24 sink in too much in the field. I was wondering if 445/65r22.5 would work well. What kind of rims and where to get? What kind of offset are on the ones I see on 920s. For guys that have put them on do you leave the 3/4" studs or replace them with the 1.125" studs? Lastly how would I figure out weight per axle. The 920 gvwr is 76000. The tank when loaded is 46000 and sits right on the frame. I know this is a lot, any info is greatly appreciated. Thank you.

 

[simp5782]

We setup a M920 for hauling liquid manure on the farm. I put 395/85r20 on the front and it worked well, just had to grind the hubs some. But on the rears I kept the 11.00r24 and had them retreaded with a more aggressive tread. The thing I don't like is the dual 11.00r24 sink in too much in the field. I was wondering if 445/65r22.5 would work well. What kind of rims and where to get? What kind of offset are on the ones I see on 920s. For guys that have put them on do you leave the 3/4" studs or replace them with the 1.125" studs? Lastly how would I figure out weight per axle. The 920 gvwr is 76000. The tank when loaded is 46000 and sits right on the frame. I know this is a lot, any info is greatly appreciated. Thank you.

You can dual up the 395s on the back for wider stance for better floatation. You just have to weld up your own wheels.

On 445s on the rear they are 12k rated each. Continental HCS are about the most aggressive I've seen tire wise in 445s. You can use the 3/4" studs and 22.5 x 12.25 steel wheels

IMO you would be better off with 24R21s they are super wide but 53in tall. Feltz tire in Marshfield WI should be able to outfit you with some.

 

[AMgeneral3945]

You can dual up the 395s on the back for wider stance for better floatation. You just have to weld up your own wheels.

On 445s on the rear they are 12k rated each. Continental HCS are about the most aggressive I've seen tire wise in 445s. You can use the 3/4" studs and 22.5 x 12.25 steel wheels

IMO you would be better off with 24R21s they are super wide but 53in tall. Feltz tire in Marshfield WI should be able to outfit you with some.

Thanks for the reply. The 24r21s would be great but the height will be an issue I think. Did some research and maybe the 525/65r20.5 would work.

 

[simp5782]

If you aren't doing much road speed you may look at going to 1300R24s. They go right on your stock wheels. Nice aggressive lug grader tires.

They are 49in tall and tubed type.

They make a budd pattern in 25in wheels you could use loader tires etc.

You may also invest in auto chains.

I have a blueprint on how to make a wheel with a spacer lug to make it triple wide on the rear..

 

[AMgeneral3945]

If you aren't doing much road speed you may look at going to 1300R24s. They go right on your stock wheels. Nice aggressive lug grader tires.

They are 49in tall and tubed type.

They make a budd pattern in 25in wheels you could use loader tires etc.

You may also invest in auto chains.

I have a blueprint on how to make a wheel with a spacer lug to make it triple wide on the rear..

Yea we do a lot of driving on the road. It's the main reason we got the truck because a tractor and tankers would take a long time. Our main options maybe the 445s or 525s. Got to be a tire that'll work, just havent found it yet

 

[simp5782]

These are the meanest 445s I've found . Continental HCS that are 860ea new or $450 ea recaps.

These here are pretty mean as well

Bandag Wide Base Lug 445/65R22.5 (2 tires) | eBay

Severe Service application. 32/32 TREAD DEPTH.

www.ebay.com

 

[AMgeneral3945]

These are the meanest 445s I've found . Continental HCS that are 860ea new or $450 ea recaps.

These here are pretty mean as well

Bandag Wide Base Lug 445/65R22.5 (2 tires) | eBay

Severe Service application. 32/32 TREAD DEPTH.

www.ebay.com

Those look like some great tires. Do you know where to get budd rims that are stud pilot for the 445s? Thanks for the help, I really appreciate it.

 

[simp5782]

Those look like some great tires. Do you know where to get budd rims that are stud pilot for the 445s? Thanks for the help, I really appreciate it.

I had to just start calling junk yards. You can use aluminum on the rears but not on the steer. Even ground down aluminum wheels won't clear the drum.

I had the best luck finding the wheels In Michigan and Indiana. They are most common on the front discharge mixers.

 

[AMgeneral3945]

I had to just start calling junk yards. You can use aluminum on the rears but not on the steer. Even ground down aluminum wheels won't clear the drum.

I had the best luck finding the wheels In Michigan and Indiana. They are most common on the front discharge mixers.

Ok thank you. I already have 395s mounted on the steer axle so Im going to let that be.