Parker Disassembly Gun Digest
 

The following was scanned from The Gun Digest Book of Firearms Assembly/Disassembly Part V: Shotgun Revised Edition By J.B. Wood:

On most Parkers I have to remove the sears in order to remove the stock.

This illustrates a top lever plunger. Earlier Parkers have a top lever spring that can be removed with a pair of small needle nosed vice grips. If that spring is broken save it and rework one from Dixie Gunworks to match thickness and length.

ALL hammerless parkers need the sears removed before the stock can be removed. Unless the stock is damaged and the bridge is missing.

I found Brian's tutorial, which is what I need for my friend. Thanks, Brian. However, is there some trick or danger in prying the sear springs loose and replacing them? I didn't see any mention of "sear springs" in the Gun Digest or Brian Dudley's tutorials. Thanks again, Brian.

I have found two types of sear springs. As I remember the earlier style is a single spring for each sear and the later spring was comprised of two springs connected by a bar. Again as I recall the earlier spring needed to be compressed to be removed and the latter could be pulled out.