[AT] Ford 3000 SOS input TLC and shaft

[Don Bowen]

On 8/1/2012 6:43 PM, k7jdj at aol.com wrote:
> Good pictures.  Since this seems to be a known failure point is there an improved replacement?  I have had similar issues on John Deere shafts on hydraulic pumps and the transmission input shaft on my JD 350 crawler.  The JD 350 problem is a $1200 plus part!  The failure on your part is different than what I see on the JD stuff.

There is no improved version, just ways to make non obtainable parts 
work for a while longer.  A fix is to machine 7/8 hex flats on the input 
shaft and weld a 7/8 impact socket in the center of the clutch.  What I 
do not understand is that clutches are old technology and by the mid 
fifties they had figured out how to keep splines in place.  This is not 
a clutch you disengage then if you are a kid trying to smart off, 
dumping the clutch.

The hex fix can be done on my parts for $300, new clutch is $179 and 
input shaft is $359.  That is if it has a single seed PTO.  The tractor 
production code on the transmission shows it as a single speed but there 
is a two speed lever on the side.  It could be that someone changed it 
or the lever just plugs a hole.  I ran it in a brush hog so there was 
never a reason to use the higher speed and I cannot remember if I ever 
tested to see if the lever did anything. In any case if it is a two 
speed the only choice is the machining and the only way to know is to 
take it apart.

-- 
Don Bowen           KI6DIU
http://www.braingarage.com/Dons/Travels/journal/Journal.html