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1957 420 – Is my throwout bearing carrier unuseable?
I am slowly refurbishing my 1957 420U. I am currently working on the clutch/centerframe. This tractor has the live PTO option with its two stage clutch, and the various parts specific to this option. Per the parts book, the carrier is specific to the Live PTO option. The carrier is shown in an...- Jreb10
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- Replies: 6
- Forum: John Deere
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1957 420 U - Number on my transmission case
I was cleaning up the tranny prior to priming and painting. I discovered this number stamped into the casting, on the top towards the front left side. See the photo. Does anyone know what it is? Just curious, thanks.- Jreb10
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- Replies: 1
- Forum: John Deere
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420U Differential - Ring and Pinion Backlash
I removed the back cover to replace the PTO seal, and checked the ring and pinion backlash just to be thorough. Well, it measured around .024" versus the specification of .006 to .0012. The tooth contact pattern on both the drive side and coast side was pretty much OK. Does it make sense to...- Jreb10
- Thread
- Replies: 1
- Forum: John Deere
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