Door Still Slow and Sticky

A home owner from Murrells Inlet, SC says:
I recently replaced both 81-112 door rollers and the 6' door track. I have adjusted the height up and down many times but the door is very slow and sticky. I have also used your recommended slide lube.
Please help. Any suggestions?.
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Bob from SWISCO responded:

Sorry to hear of your troubles. If the door is still dragging then it sounds like the wheels may be too small, even after adjusting. That's a little peculiar, but it isn't unheard of. The 81-112 comes with 1-1/4" diameter wheels. What are the size of the wheels on your original roller? If you still have the original roller, can you show us a picture of it to be safe? We'll do our best to help from there.

A home owner from Murrells Inlet, SC says:
I do not have the original wheels, but I did compare and they looked the same. No I did not measure.
Are larger wheels an option?
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Bob from SWISCO responded:

There isn't a version of the 81-112 with a larger wheel. One thought would be to attempt to swap the wheels within it with the 1-1/2" diameter wheels that come with our 81-272 Roller and Axle Repair kit. I am not sure this will work for you, and without seeing the original roller and knowing its original dimensions I cannot be sure if there is another issue here altogether--but see the video below and determine if this could work for you. Note that modified items cannot be returned for refunds. 

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