1.75 Inch ID x 234

The controllers worked perfectly without a problem. Shipping was prompt, with a lot of detailed tracking notifications - items were well packed as well - Thanks again!

Awesome and fast

No problems this was exactly what we were looking for and for 1/2 the price what more could you ask for ??? Well their is more we also got free shipping with it :-) Took about a week to arrive but that wasn't a problem.It works great and we are very happy :-)

Excelent Services and communication with Joey.

I highly recommend Preferred Doors. I recently purchased a gear and pulley replacement set for my 20 year old Craftsman belt drive 1/2 HP opener. The parts were very reasonably priced and of excellent quality. What set this purchase apart from others was that it included everything needed to do the job, gears, clips, bushings, spacers, grease... They also included very thorough details on how to replace the parts, reset the limit switches test the opener and reset the wireless openers.