Jd 8430 - The Combine Forum
LinkBack Thread Tools
post #1 of 6 (permalink) Old 03-31-2014, 05:43 AM Thread Starter
Senior Member
Join Date: Sep 2009
Location: Central west NSW
Posts: 370
Mentioned: 0 Post(s)
Quoted: 41 Post(s)
Jd 8430

Got an offer on a 8430 with a rooted front diff. Diffs available? Dear parts? Good engine and tyres. What is the go with the trannies. Are they attached to the motor, any problems, ?????? What is the worst features of them. It has one of those quad shift things.

boodles is offline  
Sponsored Links
post #2 of 6 (permalink) Old 03-31-2014, 06:06 AM
Senior Member
Join Date: Dec 2009
Location: North West Victoria
Posts: 3,452
Mentioned: 1 Post(s)
Quoted: 104 Post(s)
Working on them. Near as big a job to get the sump off the engine as rebuild the engine.

madsnake is offline  
post #3 of 6 (permalink) Old 03-31-2014, 08:17 AM
Senior Member
madcow's Avatar
Join Date: Dec 2010
Posts: 849
Mentioned: 0 Post(s)
Quoted: 54 Post(s)
I have rebuilt a few of them trannys but there not a weak point.

the rest of the tractor isn't bad to work on, but to do anything other then head work to the engine and you are rolling the front axle away. its not the worst thing to do but not as nice as simply lifting an engine out of a different tractor.

I like my 8450 but I wouldn't pay much for an 8430. I wouldn't buy one that needs much work, by the time you buy one that needs work you will be better off money, time and happiness looking for a nice 46/4850.
madcow is offline  
Sponsored Links
post #4 of 6 (permalink) Old 04-04-2014, 09:40 AM
Senior Member
Join Date: Oct 2013
Posts: 269
Mentioned: 0 Post(s)
Quoted: 7 Post(s)
The 30 series 4 wheel drives had front axels that lubed/contain GL-5(like 80w-90w oil)

Later series had axels that lube off the rest of the tractor's trans/hydraulic oil....

Hard to say what might be busted in the front axel...left or right side axel bearings could be out..planetaries could be stacked-up...in the center-section the differential bearings or pinion shaft bearings could be bad...

Last one I worked on was an 8630..and the entire front axel was thrashed! I put in a new center-section and two rebuilt final drives. More money than the tractor was worth....
Stephan is offline  
post #5 of 6 (permalink) Old 04-04-2014, 10:07 AM
Lempey8430's Avatar
Join Date: Jun 2013
Location: London,Ontario,Canada
Posts: 63
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Send a message via Skype™ to Lempey8430
well we have 8630's and 8640's and one 8430 that we put a 8.1l in outa the 8400 love it what prob happen with the front dif is that someone forgot to put oil in we have done it 2 times on a 8630 and my 8430 we just go to the states and buy a front dif from a scrap yard easy to fix just spilt one in have to put syncros in at 14k hrs

6 tractors 4 spreaders all green 8770 deere 8640 deere 8640 deere 8630 deere 8630 deere 8430 deere

Bunning lowlander 120 spreaders
wideman vshot 600 spreader
we owned the first one in north america
Lempey8430 is offline  
post #6 of 6 (permalink) Old 07-23-2019, 02:54 PM
Senior Member
whtbaron's Avatar
Join Date: Aug 2012
Location: South Central Manitoba
Posts: 2,072
Mentioned: 0 Post(s)
Quoted: 167 Post(s)
My 8430 ate a back axle last year and they were no longer available from John Deere, but the scrappers are cheaper anyway if you can find a good one. This year I'm dealing with a locked up transmission and clutch engagement issue that I haven't tracked down yet. As others have mentioned, don't spend too much because it's pretty easy to put another $18k into an $18k tractor. I wish I had held out for a 40 or 50 series myself.
whtbaron is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the The Combine Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome