1/2 HP Garage Door Opener
Was your previous motor old? I got a 3/4 HP Sears motor to replace my 1/2 HP motor and it wasn't enough. Supposedly the older ones were built a little better so it was actually more powerful. A more powerful one might be worth it for peace of mind.
i7 2600K @ 4.43Ghz/1.35v, Asus P8Z68 Pro, 4x4GB G.Skill Ripjaws DDR3 1600, Samsung Evo 840 500GB SSD, Corsair F120 SSD <Dead>, 2x3TB 7200.14 RAID, 2x1TB 7200.11, Asus GTX 770 4GB, Seasonic X-660, CM Hyper 212+, Antec 300 Illusion, HP ZR24w, Dell U2412W, Acer AL2416W, Win7 x64 HP