I have them on a 8 foot door. They stretch out to 71 inches with the door closed seem to work just fine. I do have a safety cable passing through the springs.
Had the part for an old sears opener that broke. Fit perfectly. Bought an extra one for next time. The one problem was waiting for USPS to deliver. Thanks for the quick response and would buy from again.
everything is working super thank you for the quick service and the product I was in need ofeverything is working as it should thank you for the quick service and the product that I needed LloydLloyd