John Deere #7 Backhoe replacement cylinder measurement

Ez-Duzit

New User
Hello All,
I am continuing to work on my Ford 9n with a John Deere #7 Backhoe. The dipper stick hydraulic cylinder is bent and when I looked at the parts catalog from JD they show that the part for the dipper and boom are supposed to be the same. The ones on mine are not so I assume the PO already replaced the dipper stick with wrong spec hydraulic cylinder. The question I have is what is the dimensions of the original equipment. I plan on ordering a generic replacement online that will work, but I was hoping to get as close to the right size as possible. The bent one has a 1 inch rod and the others are 1.25 so I am guessing the 1.25 is close to original, but it seems the size on the boom is not right either as it is too long for the dipperstick unless JDparts.com is wrong? Very confused. Any help would be appreciated for someone out there that has a 7 they can pull some measurements off of.
 
Well, I finished the repair by purchasing a replacement cylinder with 1 inch pin mounts online and had it delivered to my house for less then $100 total and took it to a local machine shop to have some bushings made and turn down the width of the mounts for 2 hours labor at $75 per hour. I could have done the work myself but wanted it to look nice. Dimensions I ended up with was 2 inch bore by 18 3/8 inch stroke and 1.25 inch rod. A couple hydraulic adapters for the hoses and it works perfectly. The previous owners aparently used too long of stroke to replace the original which I assume is why it bent.

I just put this out there to close the thread. Hope this helps someone.
 

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