JD 855 4X4 - REPLACE AG TIRES WITH R4 S: John Deere Review  -- John Deere Tractors Discussion Forum and Review JD 855 4X4 - REPLACE AG TIRES WITH R4 S: John Deere Review -- John Deere Tractors Discussion Forum

  parts   |   manuals   |   discussion   |   photos   |   podcast   |   reviews   |   specs   |   dealers   |   classifieds   |   contact   |   faq   |   myProfile   |   home          Login Now | Sign Up


FAQ:   What is a tractor?

Forum Index
New As Posted | Active Subjects



www.emerichsales.com - New & Used Equipment
          View Tractors For Sale!


www.partsbynet.com - Lawn and Garden Equipment Parts


Bernardsville Landscape Lighting
Click to Post a New Message!

Discussion Boards > Active Subjects > Messages as Posted > John Deere Review Forum

Page [ 1 ] |
Reply | Pop Up Window Reply | Add PhotoAdd Photo
 12-03-2002, 14:16 Post: 45685
kpatrick



Join Date: Jul 2003
Location: Walterville, Oregon
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 2

2
Filter by User
 JD 855 4X4 - REPLACE AG TIRES WITH R4'S

I would like to replace the AG tires with R4's on my JD 855 4X4 tractor.

Has anyone done this with this model and would you recommend it?

What's the best way to go about this? I understand turf wheels can be used for the R4's. Is this correct? It seems that if I can find a used set of turf wheels then I only need to figure out what size R4's will work.

How do you determine what size tires are correct?

Thank you for any help. I'm very green...

Kevin P. McElwee
Walterville, Oregon






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 12-03-2002, 15:22 Post: 45688
DRankin



View my Photos

View my Photos  Pics
Join Date: Jan 2000
Location: Northern Nevada
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5105
 JD 855 4X4 - REPLACE AG TIRES WITH R4'S

What size are your present tires?






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 12-03-2002, 15:55 Post: 45689
kpatrick



Join Date: Jul 2003
Location: Walterville, Oregon
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 2

2
Filter by User
 JD 855 4X4 - REPLACE AG TIRES WITH R4'S

Mark,

I'll check the spec's. this evening... they're currently the stock bar-tread tires and wheels.

Regards,

Kevin






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 12-03-2002, 18:58 Post: 45692
Peters

TP Contributor

View my Photos

View my Photos  Pics
Join Date: Feb 2002
Location: Northern AL
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 3034
 JD 855 4X4 - REPLACE AG TIRES WITH R4'S

I have turfs on the front and R4 on the rear of my 955. From the book I think it is the same tractor with greater HP. I believe that they are the same rims for the stock tires. I certainly don't have any windup with my set up.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

 12-04-2002, 07:35 Post: 45712
TomG

TP Contributor

Join Date: Feb 2002
Location: Upper Ottawa Valley
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5406
 JD 855 4X4 - REPLACE AG TIRES WITH R4'S

I think the conversion is common enough that a dealer would be aware of R4 tire sets that would work. A do it yourself conversion might cost less. After-market tires and wheels might knock the price down.

The size issue is that tractor front and rear drive trains have different final drive gear ratios to accommodate different sized front and rear tires. To keep the tires laying the same amount of rubber on the ground, the front and rear tire rolling circumferences have to be in proportion to the front and rear drive ratio.

To solve it exactly, the drive ratio must be known as well as the percent front axle lead spec and the rolling circumference of the front or back tires. An ideal rolling circumference for the other tire can be calculated. Some tire manufacturers include rolling circumferences along with the tire data. It can be approximated by pi times the outside diameter. However, like Peters comment, the issue isn't so critical that just 'eyeballing' a tire would likely give a decent match most times. Juggling tire pressures around also will fix a range of mismatch problems. Asking a dealer would be good insurance though.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Stumble This

Reply | Pop Up Window Reply | Add PhotoAdd Photo


Page [ 1 ] |

Discussion Boards > Active Subjects > Messages as Posted > John Deere Review Forum

Thread 45685 Filter by Poster:
DRankin 1 | kpatrick 2 | Peters 1 | TomG 1 |




Most Viewed

+ John Deere 2210 Backhoe Review
+ John Deere vs Kubota Compact Tractors
+ John Deere 790 fuel shut-off solenoid failing???
+ John Deere low viscosity HY GARD
+ John Deere JD 4100 Wiring diagram
+ JD 790 or Kubota L3000DT
+ Should I buy a John Deere 4105???
+ John Deere 4300 turns over but won't start
+ John Deere 455 garden tractor
+ Oil Change for Diesel Tractor

Most Discussion

+ John Deere 4300 scuffing......
+ Possible Solution To The 4000
+ Dealer out to lunch
+ Just got my new JD 4410 - Prob
+ Hello Green, Goodbye Orange
+ Receiver hitch for iMatch
+ 4300 wheel bolt problems
+ 4000 Ten Series 50 hour break
+ Don't buy JD compact tractors.
+ Oil Change for Diesel Tractor

Newest Topics

+ Oil overflow from tube and Smoke
+ John Deere 4100 gear 3 point not workin
+ 2000 John Deer Gator 4 X2
+ Mini Excavator SY20C - Small Body with Big Power
+ John Deer 1070 starting problem
+ John Deere 990
+ Tractors R Us
+ john deere 4100 with 410 loader hydraulic problem
+ John Deere 2032R Buying advice
+ John Deere 2010 loss of hydraulics













Turbochargers for Tractors and Industrial Machines
Cab Glass for Tractors and Industrial Machines

Alternators for Tractors and Industrial Machines
Radiators for Tractors and Industrial Machines

Driveline Components for Tractors and Industrial Machines
Starter Motors for Tractors and Industrial Machines