Home installation of a Wayne-Dalton garage door opener requires the homeowner to first determine what kind of springs their current garage door opener utilizes.

• Extension Springs: are visible on both sides of the garage door track.
• Torsion Springs: exposed springs coiled around the steel bar that extends from your opener.
• TorqueMaster Springs: are contained inside the steel bar that extends from your opener and are therefore not visible.

Spring Sysytem	iDrive	Classicdrive
Extension Springs	Not compatible	3018, 3018DLX, 3018-Z, 3522
Torsion Springs	Torsion	3018, 3018DLX, 3018-Z, 3522
TorqueMaster Springs	TorqueMaster	3018, 3018DLX, 3018-Z, 3522

If your current system is compatible with both idrive and Classicdrive, the following comparison chart highlights the major distinguishing features between the two.

I-drive	Classicdrive
Wall-mount (above the garage door)	Ceiling-mount
Door requires balancing	Easier to install
Higher price range	Lower price range
Advanced technology	Basic
Quieter	More durable (better for heavy wooden doors)
All-wireless accessories (including light kit)	Wired Wall Station and built-in light

If you chose an idrive opener, purchase the model that corresponds to your garage door opener's spring system.

If you chose a Classicdrive, use the following comparison chart to help you narrow down your preference:

Classicdrive	3018	3018DLX	3018-Z	3522
Wireless Keyless Entry Pad	Sold separately	Included	Sold separately	Sold separately
Z-Wave Enabled	No	No	Yes	No
Chain drive or Belt drive	Chain	Chain	Chain	Belt
Noise and Vibration	Quiet	Quiet	Quiet	Quietest