I recently purchased a used 6946 DAO from Gander for $231 out the door after my discounts ..... marked NPD (Newark Police Dept?). Plenty of holster wear but for the price it's a decent gun.

In any case, I'm in the process of replacing the hammer spring to the lighter 17-pounder wolff spring. I'm having a heck of a time reinstalling the grip I think because the spring is longer. I don't want to force things and end up breaking something.

Any tips or tricks to make this task easier? I've searched online with no avail. This is my first 3rd gen so I'm clueless. Your help is greatly appreciated.