Gear kit Where can I purchase the gear kit for this model?

Purchase the full kit. Not the partial kit. The instructions come with the kit. Be sure to follow them. The position of the chain and the opener when you reattach the chain are Important. It's not beyond that the ability of a handy person.

Gear kits can be purchased for chain drive machines from any of these 3 brand names ...Liftmaster/sears craftsman /chamberlain / All 3 of these brand names are manufactured by Liftmaster the worlds largest maker of garage door openers and related parts ! You can purchase a gear kit on ebay for around $30 or less depending on the seller ! If you go to garage door parts sites it will be slightly higher so your best bet is EBAY , The gear kit only requires the main gear and sprocket housing that attaches with 3 screws , just remember after the gear is installed that you run the motor co that the trolley starts in the door down position otherwise you risk having the trolley smack into the opener , this is crucial for any travel adjustments that are made later! Hope this helps you ,sincerely Glenn

in the transmission itself there are clutches between the gears. (small rings) these are worn and needs to be replaced.

instead of buying a new transmission, It would be cheaper (i think) to purchase a transmission kit for your make and model transmission and replaces the parts. Its basically rebuilding the transmission so it will return to prime condition.. It does require a professional though , you should consult with your mechanic the cost of a new one and rebuilding this one.

Remove the cover from the motor unit and check the drive gear. It is a white nylon gear just in front of the motor. It will be obvious if it is bad. A new gear kit comes with instructions. The part number if 41A2817.

I am not familier with this particular name brand but if you have a harbor frieght store near you they have a chicago electric kit quite similar to yours for 39.99.They also have one that has the drill batteries, charger,jig saw, circular saw and light for 89.99.
I hasve several chicago electric tools and have been very happy with the quality and the price.Hope this helps you some. Thank you

If you have all the pieces of the gear, I would honestly give Crazy Glue a try.
I have found though , believe it or not, that if the gear is nylon, as most of them are, that the glue in a Pool Repair Kit (about $8 to $17 in most hardware stores) works better than crazy glue because it actually fuses the nylon to itself rather than the acrolate bond that Krazy Glue or generic cyanoacrylate makes.
Use the thinnest layer of this stuff possible, and shave off any excess after it's fully cured (about 24 Hrs)
A straightened paperclip is good for clearing excess from inside the hole of the gear.

The part you are looking for is 41A2817 Gear Kit and is around $20.00. It is available from Sears or any good door opener service company. It comes with instructions.

crib parts more
Be sure your model is not one that was recalled for safety reasons. See photos at:

https://www.cpsc.gov/Recalls/2010/ct-internationalsorelle-recalls-cribs-due-to-strangulation-and-suffocation-hazards


This company, Products America, at the internet web link above, used to sell conversion kits about 10 years ago, and is still in business. They have toll free phone numbers you could call and ask for assistance:

800-205-9642 or 800-772-1041

When you purchase the gear kit it will come with instructions.