A memorable night for the Eagles as a first win at Old Trafford in 22 years saw Palace reach the semi finals with an excellent away day in the north west.
Crystal Palace continued their Carling Cup adventure at Old Trafford with a match against Manchester United in this quarter final tie.
Dougie Freedman named some of those that had helped the club get to this stage of the competition with Lewis Price, Stuart O Keefe and Jermaine Easter all&nbsp;included in the starting eleven.
The visitors had over 5000 travelling support inside the stadium and it was a good opening fifteen minutes for them with the pace of Wilfried Zaha and Sean Scannell giving the United backline trouble.
That pace was very much evident on 16 minutes when Zaha appeared to be fouled by Fabio De Silva on the edge of the box and there were appeals for a free kick but they were waved away when it looked like the challenge should have given the visitors a good set piece opportunity.
The best of a limited number of chances in the opening period for the home side saw Dimitar Berbatov have a good chance in front of goal when he picked up a&nbsp;pass from Mame Biram Diouf but he put the chance wide of Price's goal.
An early change by Manchester United as Ezekiel Fryers replaced Fabio De Silva after Zaha had the got the better of him and a yellow card in the first 37 minutes.
Just before the break the home side had&nbsp;their best spell of the&nbsp;half and the best chance came when Smalling intercepted a pass&nbsp;and played in Rafael on the right, with Diouf's overhead from a tight angle&nbsp;not troubling&nbsp;Price in&nbsp;the Palace goal. &nbsp;
Disappointment for Scannell came as he had to leave the action after two challenges left him with a leg injury and he was replaced by Jonathan Parr.
The half came to a close with Palace going into the break happy with their first half efforts in which they dominated long periods.
A further blow came at half time as Dean Moxey had to depart due to injury and was replaced by Darren Ambrose while United made a change as well which saw Berbatov replaced by Ravel Morrison.
Just minutes into the second half and the best chance of the night fell to Antonio Valencia as he ran clear of his marker and got into a position one on one against Price but the 'keeper narrowed the angle well and the shot went wide of the target.
It was not long before Morrison had his first chance of the night as he produced the first shot on target which Price gathered at the second attempt.
Just past the hour mark of the tie Morrison again came close as he fired a shot&nbsp;from close range and Price&nbsp;produced another strong save with his feet to clear the danger.
Alex Ferguson made his third change of the match as Paul Pogba came into the game but no sooner was the youngster&nbsp;on&nbsp;than&nbsp;his side were behind.
A magnificent effort from 35 yards from Darren Ambrose gave Ben Amos no chance as it landed into the back of the net to send the 5000 travelling support wild behind Price's goal.
The advantage was only there for only three minutes though as Paddy McCarthy was adjudged to have fouled Macheda and soon got up and fired the penalty past Price to bring the scores level.
The final change from Freedman saw Glenn Murray come&nbsp;on for Jermaine Easter with just under 20 minutes remaining.
On 77 minutes Macheda&nbsp;put in Diouf on the left, and he attempted a drive at goal which ended up high over the goal and not troubling Price.
With nine minutes remaining Valencia played in Morrison, who looked to&nbsp;shoot with his right foot, before Gardner stepped in and tackled to get the clearance away.
Zaha soon after won a corner for Palace, and Ambrose's delivery was cleared at the near post by Park as Palace look to maintained their threat on the home side. With four minutes left on the clock Ambrose nearly picked out Murray with an excellent through ball but Jonny Evans nipped in and got&nbsp;a vital touch but it fell to Ambrose who drove at goal with Smalling getting the clearance in.
As the three minutes of added time was shown Murray found himself with the ball on the right after Zaha's deflected strike came to him but the striker could only find the&nbsp;side netting.
This was the last chance of normal time as the referee called time and thirty minutes of extra time began.
The first chance of added time fell to the home side as Gibson&nbsp;had a right footed effort from distance at goal which&nbsp;was deflected for a corner.
The action was soon at the&nbsp;other end as Murray got on the end of a Ambrose free kick and&nbsp;headed past Amos from close range with his fifth goal of the season.
United soon came back with two chances as Gibson shot inches wide and then Macheda saw his effort go the wrong side of post, as far as he was concerned,in the next attack.
On 102 minutes Ambrose again fired at goal with another great strike from a free kick which was&nbsp;parried by Amos and the offside flag was shown before Murray could get to the rebound.
United started the second period pushing forward but Palace held a firm back line and looked comfortable defending as the clock counted down ever too slowly.
McCarthy and Gardner make&nbsp;last gasp clearances as&nbsp;the Eagles made the semi -final of the&nbsp;Carling Cup for the first time since 2001 and won at Old Trafford for the first time&nbsp;for 22 years.
AT 90 mins 1-1
Man Utd Amos, Rafael Da Silva (Pogba 64), Smalling, Evans, Fabio Da Silva (Fryers 37), Valencia, Gibson, Park, Diouf, Berbatov (Morrison 46), Macheda.
Subs Not Used: Lindegaard, Michael Keane, Cole, Lingard.
Booked: Fabio Da Silva, Gibson.
Crystal Palace Price, Clyne, McCarthy, Gardner, Moxey (Ambrose 46), Dikgacoi, O'Keefe, Wright, Zaha, Scannell (Parr 45), Easter (Murray 74).
Subs Not Used: Speroni, Iversen, Jedinak, Ramage.
After Extra Time
Att: 52, 624&nbsp; Referee: Chris Foy (Merseyside).