I have the exact issue on my deck. Went to dealer and we discovered the part # change. $500 bucks and I have the same gearbox I need to install. This video was excellent and showed me the way.

I cant say thank you enough.Long story short,,,,its Saturday Im doing deck maintenance (60D) and dumped old oil out of gearbox.I looked in manual and nowhere did it indicate oil weight. Of coarse JD stealership is closed.I just happened to have a bottle of 80W90 on my shelf and now I can continue with my deck maintenance thanks to this video and all the comments left by other YouTube viewers. Thanks again pal,,,,you saved my day.Hot damn,even a blind squirrel finds a nut every now and then.😂😂😂😂😂😂😂👍👍👍👍

This really helped me replace my mower deck gear box.  Thank you for all of the details!

Thank you so much for doing this video! My gearbox failed today on the 60D deck. Ordered a new one at my dealer and now I can install it with confidence thanks to you.👍

I tip my deck at an angle while filling the gearbox in order to get a little extra in. I am just getting ready to replace this gearbox on my 54D Auto.

I want to thank each and every one of you!! This channel got it's 100th subscriber today. I really appreciate every single viewer and subscriber taking time out of their busy lives to click on a Pm Tips video. Always remember, if you have any questions please ask them here in the comments section, if I don't know the answer I'll do my best to get you one.

Thanks you for making this video. I literally was researching because I am going through this exact issue. THANK YOU!!!

Thanks for the video! It was a big help!

Thanks for the video.  Very useful.  I also had to replace my gear box as it was leaking oil.  The coupler on mine had both set screws backed off and one of them was destroyed.  I had a hard time finding the part number for the coupler and the set screws.  Finally found them, they are listed in the universal drive shaft assembly.  The instructions for the assembly notes that loctite should be applied to the set screws and the coupler needs to have 1/16" clearance to the gear box.  Set screw is 22M7072.  Coupler is M170762.

Thanks for sharing. Great video.

Your video was awesome and made it easy to change out my gear box!!!

very informative,thank u so much!

THANK YOU EXCELLENT VUDEO

Great unboxing and explaining of best install methods. Will be checking the health of mine on a 54 hc, it has a weird rattle/clunking that leads me to the gear box also. Thanks again!

Wonderful Presentation. I thought those boxes would last longer. I have a 425 that has a 60 inch mower with 800 hours and I just serviced it last night. I will periodically inspect the mower of my 1025R...

Have the same issue with my Cub Cadet/Yanmar SC2400 deck (MM60RSe) gearbox. Gearbox is made by Peerless but only now available through Yanmar for $500 or rebuild bearings and seals for around $95.  Nice vid. Really like that drive on deck action. Lot better than man handling. Thx ⚙️🔧🚜

My box went yesterday. Orders another from John Deere this morning. Tried to remove the bolt on the pulley. Can’t break it looses. Know it’s left hand. Will have to wait until get air wrench and see if works. Also the input shaft had one set screw that had backed out and was damaged. The other was not tight.  My bottom seal went out and oil spun out and caused bearing failure before new oil was leaking.

good video.  i think the use of Amsoil 70W-90 and the failure of the lower pulley bearing on the gearbox is likely coincidental.  It appears the 80W90 is more viscous but hard to tell.  On my simplicity legacy XL 60 inch deck calls for 85W-90 in its gear box.  Could find any around so I ordered on line.  The gearbox has 500 hours and other than the oil looked black it seemed fine.  An petroleum engineer I am not so if possible I'll try and stick with the stuff Simplicity said.  Thanks for sharing...

Use Loctite on the little set screws. They will back out and can make it extremely hard to remove the deck from the tractor.

You are right. You should hand tighten any bolts or nuts that have a bearing on the shaft!!  Enjoyed the video Pm!!  Have a great week!!