420 Rear Tires
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    420 Rear Tires

    I went up to our VT home on Saturday morning and drove right up the driveway without any issue at all. There are a lot of leaves under the snow that came down right before the first snow storm so I didn’t have the opportunity to blow them off before they got covered. Exactly what I was trying to prevent. Oh-well.

    I brought up a new battery and other stuff to try to get my 1983 420 tractor up and running again. After an hour of taking off all the engine covers, removing the battery and battery tray, I was able to check all the fuses and electrical connections. I found no smoking guns there. So I reinstalled the battery tray and put in the new battery. It started right up. I suspect that the battery had gone bad. Unfortunately, the new battery was slightly too big and didn’t fit the tractor correctly, so I have to trade it in for a smaller one, but at least I know that the tractor starts. And I confirmed that all the front hydraulics work fine.

    But I needed to plow so I jury rigged it in place, and proceeded to put on the new rear tire chains. Once that was done I successfully plowed.
    Click image for larger version. 

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    Well, almost. As I was cleaning up the large piles at the foot of the driveway, the tractor started feeling weird and started leaning to the right. I stopped, got off and looked things over without seeing anything wrong. So I got back on and started back up again only to barely be able to move and the right tire chain came off. Huh? I looked down and then saw the problem. I had a right rear flat tire! Great. If it’s not one thing, it’s another.
    Click image for larger version. 

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    So, I need new rear tires. I'm not surprised that the current ones didn't last. They look old, dried out and starting to crack.

    I want to replace them with Carlisle All Trails but they appear taller than the turfs I'm currently running so I don't know the best size for the 420. I also will need chains for my steep driveway, so I need to figure out the corresponding size for them.

    Anybody have experience or guidance for me?

    Thankyou, Steve.
    1983 John Deere 420 w/50" Deck and Plow
    2017 John Deere X394
    2017 44" Snow Blade
    2017 48" High Lift Deck
    2018 Innovative Grapple
    JD 10P Poly Cart
    Pull Behind Broadcast Spreader
    DR Power Grader
    MCS 7 Dump Hopper
    Power Flow Chute
    Rear Tire Chains
    (4) Suite Case Weights

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    jdforever's Avatar
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    Quote Originally Posted by VTx394 View Post
    I went up to our VT home on Saturday morning and drove right up the driveway without any issue at all. There are a lot of leaves under the snow that came down right before the first snow storm so I didn’t have the opportunity to blow them off before they got covered. Exactly what I was trying to prevent. Oh-well.

    I brought up a new battery and other stuff to try to get my 1983 420 tractor up and running again. After an hour of taking off all the engine covers, removing the battery and battery tray, I was able to check all the fuses and electrical connections. I found no smoking guns there. So I reinstalled the battery tray and put in the new battery. It started right up. I suspect that the battery had gone bad. Unfortunately, the new battery was slightly too big and didn’t fit the tractor correctly, so I have to trade it in for a smaller one, but at least I know that the tractor starts. And I confirmed that all the front hydraulics work fine.

    But I needed to plow so I jury rigged it in place, and proceeded to put on the new rear tire chains. Once that was done I successfully plowed.
    Click image for larger version. 

Name:	First 420 Plow.jpg 
Views:	9 
Size:	1.03 MB 
ID:	660050
    Well, almost. As I was cleaning up the large piles at the foot of the driveway, the tractor started feeling weird and started leaning to the right. I stopped, got off and looked things over without seeing anything wrong. So I got back on and started back up again only to barely be able to move and the right tire chain came off. Huh? I looked down and then saw the problem. I had a right rear flat tire! Great. If it’s not one thing, it’s another.
    Click image for larger version. 

Name:	Flat.jpg 
Views:	9 
Size:	1.25 MB 
ID:	660052

    So, I need new rear tires. I'm not surprised that the current ones didn't last. They look old, dried out and starting to crack.

    I want to replace them with Carlisle All Trails but they appear taller than the turfs I'm currently running so I don't know the best size for the 420. I also will need chains for my steep driveway, so I need to figure out the corresponding size for them.

    Anybody have experience or guidance for me?

    Thankyou, Steve.
    That's a nice looking old 420. I purchased a 430 new in 1986. Good tractors! Do you mow with It? If not, I would consider Carlisle lug tires (26 x12 x 12). Had them on mine, and didn't even need chains. Actually, except when the ground was extremely wet, they didn't harm the lawn. I nicknamed my 430 "The Beast" because you just couldn't hardly stop it. It had been in the family for 32 years. My son just sold it a couple months ago. Hated to see it go.

    BTW: This is a very recent picture in unrestored condition.
    Attached Thumbnails Attached Thumbnails imagejpeg_13 (1).jpg  
    Last edited by jdforever; 12-03-2018 at 01:29 PM.
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    That's a nice machine. I dont think I want AG tires though.
    1983 John Deere 420 w/50" Deck and Plow
    2017 John Deere X394
    2017 44" Snow Blade
    2017 48" High Lift Deck
    2018 Innovative Grapple
    JD 10P Poly Cart
    Pull Behind Broadcast Spreader
    DR Power Grader
    MCS 7 Dump Hopper
    Power Flow Chute
    Rear Tire Chains
    (4) Suite Case Weights

    "I work to live. Not live to work." "Born to fish. Forced to work." 14 months to retirement!

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    420 Rear Tires

    I have ag’s on my 420/loader. They are horrible ion snow and ice even with plenty of ballast.

    You needs 26/12/12 tires. 1” of height difference if there is one shouldn’t cause problems.

    Would a tube solve your issue or is the tire bad?

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    420 tires

    Quote Originally Posted by rydplrs View Post
    I have ag’s on my 420/loader. They are horrible ion snow and ice even with plenty of ballast.

    You needs 26/12/12 tires. 1” of height difference if there is one shouldn’t cause problems.

    Would a tube solve your issue or is the tire bad?
    The current turf savers are old and cracking, so I want to replace both of them to prevent any further issues.

    In looking at the Data Sheet website, I see that turf tires use 26/12/12 and AG tires use 23/10.5/12. That's why I'm not sure which size to order. I don't even see the All Trails listed in 26/12/12 in the Carlisle catalog, but I do see them for sale from multiple sources. Left overs?
    1983 John Deere 420 w/50" Deck and Plow
    2017 John Deere X394
    2017 44" Snow Blade
    2017 48" High Lift Deck
    2018 Innovative Grapple
    JD 10P Poly Cart
    Pull Behind Broadcast Spreader
    DR Power Grader
    MCS 7 Dump Hopper
    Power Flow Chute
    Rear Tire Chains
    (4) Suite Case Weights

    "I work to live. Not live to work." "Born to fish. Forced to work." 14 months to retirement!

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    Sergeant's Avatar
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    Well here has been what I have slowly been replacing My rear Tires with on My Garden tractors 26x12.00-12 Kenda Terra Trac Garden Tractor Tire I like them Better than the Carlisle for 1 reason there 4PLY. So I either use the Kendra or I Use AG tires Tire's. Any thing Pre 1992 gets Ag's any thing Later gets Kendra's The HDAP style really does do will In the snow with out chains and works Pretty good In the dirt. That said I have used AG tires Predominately In the winter for the Last 30 years On Most of My Tractors Specifically My Main snow removal Tractors a New 1988 JD240, 1994 JD425 (Bought in 2000) and a New 2003 JDX485. Not Until the Purchase of a Used X748 In 2014 did I go to the HDAP style tire. Because I was dead set against them for winter use Because the AG tires did so well But either would Be good for Your 420 and You won't need chains But I suggest running Ballast of some Kind. I normally run 4 to 6 suitcase weights depending on tractor and this year I started using 72lb cast Iron wheel weights as well On the X748 and it Probably doesn't need it. But I also use a GX335 with HDAP style tires & wheel weights and 4 Suitcase weights. Haven't suffered any real wheel slippage with the HDAP style Kendra's In either 26X12 or 23X10
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    Quote Originally Posted by VTx394 View Post
    The current turf savers are old and cracking, so I want to replace both of them to prevent any further issues.

    In looking at the Data Sheet website, I see that turf tires use 26/12/12 and AG tires use 23/10.5/12. That's why I'm not sure which size to order. I don't even see the All Trails listed in 26/12/12 in the Carlisle catalog, but I do see them for sale from multiple sources. Left overs?
    26-12-12.

    Wherever you looked is wrong. 23-10.5-12 are 300 series tires.
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    The 26-12.00-12 is a big tire, but fits on the 300 series well if you are not concerned abut clearing a mower deck. Actual diameters vary by manufacturer, so you may find some that clear and some that don't. Here is a picture of my two 322 tractors with each size in use -- the larger rears with 18-8.50-10 fronts in the turf tread pattern had issues with clearing the deck when lifted all the way up. Obviously it worked to my advantage when using the center grading blade however...

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    Chuck
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    Quote Originally Posted by rydplrs View Post
    26-12-12.

    Wherever you looked is wrong. 23-10.5-12 are 300 series tires.
    Ditto
    AG tires are 26x12.00-12 for the 420 & 430 always Have been


    I wonder if he is Looking at something to do with the 425 thru 455

    When the 425 thru 455 were Introduced the first year Both 2Wheel steer and All Wheel Steer all had 23x10.50-12 for turf or AG.

    Starting in 1993 the 445 & 455 2 wheel steer had had 26x12.00-12 for either Turf or AG and the 425 2 Wheel steer stayed with 23x10.50-12 for turf or AG while the AWS version of the 425, 445 & 455 had 23x10.50-12 turf or AG

    Now the GX300 series for 2004 & 2005 Used 24x12.00-12 Turfs and 23x10.50-12 AG tires same Goes for the X500 series Turf or HDAP were 24x12-12 & AG was 23x10.50-12 for that series except All wheel steer Models On the X500 series

    John Deere Models: 2025RTLB(Gen 2),X748,GX335,140H3,112SF,110RF,Sabre 1542,XUV 835M
    Cub Cadet Models:0riginal,70,106,XT3GSX & Experimental Non Production Rear engine rider
    Ingersoll Model:3016PS
    Simplicity Models:Wonder Boy
    White Model: GT2055

    MSGT 11 & 18 Series Retired

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    Whatever tire type you decide upon, I'd echo Sergeant suggestion and get at least a 4-ply. My 455s came with 2-ply turf tires. Nothing wrong with the turf tread, it served me well for both mowing and snow blowing. My issue was they were 2-ply. It wasn't that I required more weight carrying capacity, which is the typical reason for moving to a greater ply count. My issue was the low inflation pressure of the 2-ply, 10 psi. If I was doing any kind of pushing or pulling with it, the rim would slip on the tire bead and I'd have a flat the next day. Tubes didn't help, as it would tear the valve stem.

    I found the same exact Carlisle turf tread tire, except in a 6-ply. I could inflate it to 35 psi. I never had a flat after that.
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