Craftsman Garage Door Opener drive gear replacemnt

bamcobraApril 22, 2009

I have and older (probably prior to 1984) model #139.664956 that has stripped the drive gear. Sears Parts Direct indicates the replacement gear kit (4A1425) has been discontinued. The original gear had 24 teeth. E-bay shows lots of individual drive gears and several gear kits. However, all the ones I can find indicate that the drive gear has 32 teeth, is 2 3/4" in diameter and has a 1/2" shaft bore. The old 24 tooth one has the 1/2" shaft bore, but is so badly stripped, I cannot determine the original diameter. Question is: Can I interchange a newer 32 tooth gear for the original 24 tooth gear (my old worm gear looks OK) or must I also change the worm gear to match the pitch of the teeth on the drive gear. Thanks for any advice.

Thank you for reporting this comment. Undo

The drive gear and worm gear must match. Your opener was the Cadillac at the time it was made but is now so outdated it should be retired. The new models are much safer.

    Bookmark   April 22, 2009 at 9:30AM
Thank you for reporting this comment. Undo

Thanks, Don. I kind of expected that, but was hoping to get one more Summer out of it for the $9.95 wheel. Planned to replace doors and all this Fall. Guess maybe now is the time instead. I have not done a lot of research yet, but noticed the I-drive units from Dalton. Would like to go with a torsion spring this time and I'm a DIY'r. Do you have any opinions on them? It's an uninsulated, detached garage, so I don't need the high end doors, which should keep them pretty light.

    Bookmark   April 22, 2009 at 10:31AM
Thank you for reporting this comment. Undo

The I-drive by Dalton has the worst reputation of any opener on the market. If you are really interested in this type opener you should check out the jackshaft opener by Liftmaster. You can get information on this from any Liftmaster dealer. They are expensive!

    Bookmark   April 22, 2009 at 1:59PM
Thank you for reporting this comment. Undo

Thanks for the tip about the I-drive. Based on your comment, I'll probably end up with a more traditional opener. This garage and neighborhood does not justify the "expensive" models, even though you noted that the original Craftsman was at the high end in it's day. Something basic and safe will suffice.

    Bookmark   April 22, 2009 at 10:27PM
Sign Up to comment
More Discussions
Pouring a new driveway
Hello everyone, first time poster. I'm ready to sign...
Gable Vent Color Suggestions- Insight please
Hopefully someone can give me insight! We recently...
Moss removal help!
Can anyone tell me how to effectively remove what looks...
Roof leak - best way to find it?
Hi Everyone, I am a condo owner in New Jersey and own...
Andersen patio door repair
My 20-year old Anderson patio sliding glass door is...
Sponsored Products
Genie 1022 DC Chain Drive Garage Door Opener
American Drew Cherry Grove Corner China Cabinet - ADL4555
Clifton Greens Wreath
$249.00 | FRONTGATE
Espresso 60-inch Italian Ivory Carrera Marble Top Double Vanity with Mirrors
Afina Basix Plus Antique Style Surface Mount Medicine Cabinet -16W x 4.5D x 22H
$336.00 | Hayneedle
Wall Mounted Brass Shower Door Wiper With Chrome Finish
Bella Over-the-Cabinet-Door Styling Station
$11.99 | zulily
Italiano 24 inch Flat Solid Hard Aluminum Anodizing Cabinet Handle Bar Pull
eModern Decor
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™