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Discussion Forum

Looking for Parts for JD 440 dozer final drives

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06-12-2001 10:09:48

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Looking for advice and parts on a JD 440 final drive. The outer bearing retainer is cracked and may have damaged the gears. Does anyone have an outer bearing retainer / gears / parts for one of these drives they want to sell? How is the gear assy removed from the housing without tearing the complete final drive off? It looks like there is a bearing plate underneath the back to access the shaft retaining nut, but I wanted to get some input from someone who has already done it.

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06-13-2001 18:56:39

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 Re: Looking for Parts for JD 440 dozer final drives in reply to iryncurtain, 06-12-2001 10:09:48  
I have a retainer cap or a complete final for early 440c in central oh. 740 857 1882 between 8&9 pm eastern time

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06-12-2001 15:58:32

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 Re: Looking for Parts for JD 440 dozer final drives in reply to iryncurtain, 06-12-2001 10:09:48  
I sold my 440 awhile back after getting tired of replacing those bearings. Got so much practice I could do it alone in 2 1/2 hours. The gear drops out the bottom but you have to turn it so a flat lines up with the housing. Only comes out in that one position. That "bearing plate underneath the back" is the two-bolt plate opposite your cracked outer bearing retainer? If so, pull it off and the rest will be self-explanatary. Don't lose the shims in there. I had trouble with the bolt holes cracking the casting and ended up getting a huge plate to replace the little one. Careful machine work necessary. Used existing bolt holes above and below the little plate. Hope you don't have to do that. Take careful note of which way the bearings and races come out. It's possible to put them in backwards. Don't last long that way I found. You really ought to get your hands on a parts manual. Mine went with the tractor but check ebay. Hope I haven't confused you.

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