JD420C Loader Cyls

[Nhebayer]

I need help figuring out a seal and rebuild kit for my Loader.

This is a 420C crawler with a bucket loader... it came from the factory this way as far as I know... I believe it may have had a backhoe on it as well.. But its gone.

The Bucket curl cyls are very weak and will settle and give way when working. No External leaks. Loader valve is brand new.
Lifting cyls are very strong and dont settle at all.

I want to rebuild the curl cyls... but I have no idea what parts... Kits or ???
I find no numbers on the cyls at all. Cyls look original. How and where can I look up parts for these? I would like to order kits to have on hand to min down time.
Im sorry if this is a Newbie question... I am new to Hydraulics and old Iron.
For whats its worth... I am a retired certified Master Auto tech.. I'm sure if I can get the parts... I can figure out the rest.
Can you help? What info do I need to get?
I have pics of Cyls in question... if I can figure out how to post them.
Thank you[/img]

[Lavoy]

Best bet is to find a local hyd shop that rebuilds cylinders and see what they have on hand.
Lavoy

[scampr]

I see your in NH ,PB&H in Antrim does good work on pistons and they sure know JDs... just a thought..I think Lavoy needs a east coast place too.

[mapaduke@yahoo.com]

I would open a shop for lavoy ,I have a good start to the inventory. lol