Yes and no. The first year 445/455 actually didn't run 26's. Due to great backlash from previous 420/430 owners JD trimmed the fenderdecks so 26's would clear the following year. I can't remember if the 425's shared that trimmed 445/455 fenderdeck or not. Hopefully somone else here can verify or has done the 26" install on a 425.

 

Does this read as you can't put 26" tires on a first-year (1992) 445 without trimming the fenderdeck?

 

You can run 26” tires on the 425, however, you may need different rims. Stock 425s came with 23 x 10.5 tires went on 8.5” wide rims where the 445/455s with 26 x 12” tires went on 9.5” rims (M119390).

Same problem up front, 445/455s with 18 x 8.5” tires went on 6.2” rims (AM120003).

I have heard you might be able to mount the larger tires on the smaller rims but I haven’t seen it done. The rears would most likely give you a problem as they would balloon out and not give the flat profile on the contact area, might even hit the deck.

If you do mount the larger tires to the smaller rims post some pics, I’d be interested.

 

The rear rims on my 445 are 10.5" wide. Not sure if all 445 have the same wheels.
Look here post #48 for a pic. http://www.mytractorforum.com/showthread.php?t=109258&page=4

 

Hum . . . different size rims.

What is the general consensus on the larger tires on the small width rims? Doing a google search of the part numbers jwill provided show that the larger rear wheels are 105 each and the fronts are 70 each.

On a side note . . . out of curiosity . . . is there a database of JD parts . . . CD/DVD or internet based?

 

This will help withthe part numbers:
https://jdparts.deere.com/servlet/com.deere.u90.jdparts.view.publicservlets.HomeUnsigned

I'd be concerned about deck clearance as jwill1776 mentioned.

 

I found these threads . . .

http://www.weekendfreedommachines.com/discus/messages/60944/405075.html

http://www.weekendfreedommachines.com/discus/messages/60944/89942.html

People have put the larger tires on the OEM 425 rims with no problems. This only applies to the NON-AWS model though . . . so I should be ok . . .



Thoughts?

 

Some 26x12 tires will fit on 8.5" rims and some require wider minimum rim size. It's best to consult your intended tire manufacturer directly, to see what needs what. Otherwise, we would really need to know which specific tires you are trying to get fit for a definitive answer. For example, I've put true powers 26x12x12 lugs on 8.5" wide 300 series rims.

It should also be noted that the 26" rear and 18" front are required as a set to maintain current ground clearances. If you only go up to 26" rears, and keep 16" front, you will have a slight rake in your stance afterwards.

 

I was going to replace the OEM 425 setup with Carlisle TruPower 26 x 12.00 - 12 and the front with Vredestein V61 18 x 8.50 - 8. Universal lift front and back.

How does that sound?

 

Below is a graphic from the Carlisle website indicating 26x12x12 True Power tires have a minimum rim width of 8.5" -- both the 4 and 8 ply version

I have no direct experience with the V61's, maybe somebody else can help with those, or at least translate some German for you;


Multi Rill: Voorband voor weide- en akkerbouw

Bandmaat 7.50-18 7.50-18
Ply rating 6 8
Aanbevolen velg (toegestaan) 5.50 F x 18 5.50 F x 18
TL/TT TT TT
Ventiel TR 15 TR 15
Breedte (nieuw, mm) 215 215
Diameter (nieuw, mm) 880 880
Statisch belaste straal (mm) 415 415
Load capacity @ 40 Km/h (Kg/kPa) 825/280 950/370

 

Found a great part finder http://jdpc.deere.com

From what I've found . . . the larger tires should work on the 425. It would be great to have to larger rims, but unless I can find a 445/455 part tractor I'm going to have to use the 425 rims.

I'm more concerned with the rears than the fronts, for deck and fender clearance. It might be close . . .

 

Just got my new tires mounted on the 425 yesterday. The 26x12x12 TruPower's in the rear fit the 8.5" 425 rims fine. Installed them in the wide stance and there are no clearance issues. The 18 x 8.50 - 8 V61's fit fine on the 425 front rims.

I'll post some pictures in the near future . . .

 

I'll post some pictures in the near future . . .

Hope so...:fing32:

 

:wwp::wwp::wwp:

 

Yes post some pics please !!

 

Here the pictures are! Night shots after I put the new weights on, but they still came out OK.

 

Looks great. :trink39:

 

Sweet! Im curious to how you will like the performance of those V61s! My dad's 445 came with the same size tires you originally had and I keep telling him he needs to put some real meat on those rims

 

Thanks for the pics, new rubber looks good.

I think I may add two V61 front tires to my Christmas list.

 

Those new tires really make that thing look mean. :thThumbsU

 

:ditto::ditto::ditto: Thanks for the pics.

 

I have the same setup on my 430 THANKS to a high recommendation by D-Dogg. I love 'em!

 

Man that looks great with the bigger tires on it ! Well done and thank you for the pics.

 

I measured the fender deck lip on my two tractors;
1993 425 = 3.5
1996 445 = 2.5

My 425 has an inch less tire clearance. I currently have some 26-12-12 bar tires on the narrower rear rims and they fit nice with enough room for chains. I did try a different brand of tire before that ran a bit bigger (also 26-12-12) and they just cleared did not leave room for chains.

Depending on which fender deck you have, if you ever run chains, and which brand of tires can make a difference.

 

when did the 445 and 455 switch to the larger tires?

I know the earlier years they had the 23's and 16's

 

Ive never seen them on small tires except the aws versions.

Sent from my LGL52VL using Tapatalk

 

Man that looks great! Thanks for the pics.

 

So I came across this thread, and I have a 455 that does NOT have the AWS and has the 23x10.5-12 Rear/16x7.5-8 Front tires that are original. I was fortunate enough to pick up a plow last fall and as expected, suffered a bit with plowing not having weights and chains. My question is this: Would it be better to get weights and chains, or change to the aggressive tires with weights? I have ~3" clearance around the rear tires to the fenders. Also, I've been trying to find the aggressive tires, and it seems as though there are many types. I'm not sure what would be best.

Thank you for any guidance!

Also, if anyone can recommend a place to pick up inexpensive suitcase weights, that would be great. I'm looking at getting this rear weight bracket - Rear Suitcase Weight Bracket Fits John Deere 425 445 455 | eBay

 

So I came across this thread, and I have a 455 that does NOT have the AWS and has the 23x10.5-12 Rear/16x7.5-8 Front tires that are original. I was fortunate enough to pick up a plow last fall and as expected, suffered a bit with plowing not having weights and chains. My question is this: Would it be better to get weights and chains, or change to the aggressive tires with weights? I have ~3" clearance around the rear tires to the fenders. Also, I've been trying to find the aggressive tires, and it seems as though there are many types. I'm not sure what would be best.

Thank you for any guidance!

Also, if anyone can recommend a place to pick up inexpensive suitcase weights, that would be great. I'm looking at getting this rear weight bracket - Rear Suitcase Weight Bracket Fits John Deere 425 445 455 | eBay

Well You Might want to consider these for rears 26x12.00-12 Kenda Terra Trac 4 ply Now if You want to stay with the smaller size rear tires they also have them In that size 23x10.50-12 Kenda Terra Trac 4 ply
The weight bracket Your Looking at has some down side to It as it Bolted On the Deere click N Go Brackets( for the X465 thru X758) will work on the Older 425 thru 455 series what is Nice if you decided to Go with a 3point Hitch Ruegg MFG - Agricultural Hitch Kits for Various Tractors then You Can easily remove the click N go weight bracket without tools I would say add wheel weight the HDAP style tire and suit case weights and the 455 will be almost unstoppable Pushing snow with a Blade.

I use to run a 1993 425 I bought used In 2000 Had it for 3 years I would run 26X12 Ags On the rear In the winter and Ran 23X10.50 turfs In the summer But since Deere Came out with the HDAP style I seem to swear buy them even In 2WD ruegg also make some weight Bars for the Cat 0 Hitches if you decided to go that way the 3point Hitch really opens Up a Lot of Versatility with You tractor Just something to consider

 

I have bought tires from them and it was an excellent transaction...great., knowledgeable people and super fast with the shipping

 

HDAPs got the win! I never use chains, just plenty of ballast on my 455 for winter use. Never had an issue with traction yet.