Howdy Ironfist,
If you didn't study the relationship of the parts as you broke the gun down,
you'll have to start from scratch. This is assuming that you have an early
Para...without the Colt design Series 80 firing pin safety system. If yours
has these extra parts, the procedure will be a little different.
Trigger in first. It will go in upside down, but not all the way.
Mag catch goes in next. Work it back and forth while turning lightly on the
lock with a screwdriver. When it hits the sweet spot, it'll turn easily. Don't
put more than very light turning force on it. It's not a screw.
Point the frame at the floor.
Sear and disconnect go in as a unit. With the flat side of the disconnect toward the trigger, lay the sear on top with the concave part of the sear
rearward. The square legs of the sear should sit on top of the disconnector
paddle. Pinch the assembly between thumb and finger, and slip the top of
the disconnect into its hole in the frame lay the paddle against the trigger
stirrup with the bottom of the disconnect about flush with the bottom of the
trigger stirrup.
Hold the assembly in place with the tip of your finger, and roll the pistol
onto its side with the left side facing up. Look into the sear pin hole, and
pull the trigger a short distance rearward to see when the sear and disconnect align with the sear pin hole, and insert the pin left to right.
Roll the pistol upright while holding the pin and shake it a few times. If
all is well, they will stay put. If anything falls out, start over.
Install the hammer, and flip the strut over the top. Lay the sear spring in
by moving it up ward slightly as you get the tab on the bottom into the
slot in the back of the frame. Make sure that the center leg is on top of
the disconnect, and that the left leg of the sear spring is on top of the
left sear leg. Hold it in place with your right thumb while you slip the
mainspring housing about halfway up to put pressure on the spring.
The hammer pin is smooth, without a groove in the center. The grooved pin
is the mainspring housing pin. They're the same diameter, but they're
not interchangeable.
Flip the hammer strut into place, and slide the mainspring housing up slowly
Make sure that the strut is centered in to mainspring cap, and don't push the housing all the way into place yet. About a 16th of an inch short of full engagement will work.
Install the grip safety, and make sure that the strut is centered in the channel in the center of the grip safety. If it gets pinched on either side,
remove the grip safety and try again. If all is well, the mainspring housing will slip into place. The hammer should be fully down so you won't be fighting the mainspring's tension.
Install the mainspring pin through the frame. The plunger on the end of the mainspring will require some force. I usually get it started, and flip the gun over...lay the pin against a table, and bump the side of the grip frame
with the heel of my hand. Finish driving it in flush with a hammer and punch. Easy. If you hit it too hard, you'll drive it out the other side.
Cock the hammer and install the thumb safety..making sure that the pin
goes through the grip safety's hole. Depress the plunger with a suitable
tool and push the thumb safety in and up in the same motion. It should
snap into place in the engaged position.
If yours has the Colt-type firing pin safety system, hit the link below for
instructions.
http://www.thehighroad.org/showthread.php?s=&threadid=56922
Luck to ya.
Tuner