End Bearings (pair) Size:Square If they’re worn

If they’re worn

This replacement screw drive rack is not compatible with LiftMaster® Models 3130 or 3240

For use with various 1/2HP LiftMaster® and Chamberlain® Chain Drive Garage Door Openers

OR UP TO 2 MANUFACTURED FROM 1995-1997

and failure to use the correct tools or follow safety procedures can result in severe injury

End Bearings (pair) Size:Square If they’re wornMade in the USA Terms & Conditions Spring measurements will be made ONLY with Spring s on hand or by providing a spring s size. All parts purchased from TGDC store have no warranty. If measurements provided are incorrect, we do not accept responsibility. Garage door parts & torsion spring replacement are extremely DANGEROUS. PARTS SPRINGS are under a lot of tension. you do not use the right tools and follow safety procedures; you could lose fingers