Before:  This is from 7 years of wear, original cheap rollers, a under-powered spring, misalignment, a mini-van strike, under supported door panels and just general wear and tear.  All the teeth have been totally worn down on the teflon gear.

After:  New teflon gear, just look at those sharp teeth.  Also added more support to the door panels, an addition spring (actually replaced the old one and added two new ones).  When finished the door will work, and then we’ll have to clean.  That is for another day, and — NO THERE WILL BE NO PICTURES!!!