Thanks for the suggestion. I ordered a pair of cylinders from them. I may have to do a little grinding on the boom end and shim the bucket end but everything else looks good. Got both for $410 shipped. For that price I could replace them both 6 times before replacing a pair of the JD. I'll try to remember to take pics and do a little write up in case anyone else is ever looking for something cheaper that fits. That's cheaper than I paid to have mine rebuilt a couple of years ago!I’ve replaced several cylinders on my JD 4600 with close fits from Magister Hydraulics. Some minor adjustments were needed, but now I can easily swap the cylinder on the future without paying JD $1500 for a replacement. That’s generally about what they get for them.