Darlington remain eight points from safety in the Blue Square Bet Premier after a thrilling draw at Telford.
Chris Sharp headed the hosts ahead from close range, but Drewe Broughton took advantage of poor defending to level.
Ryan Bowman finished well from 12 yards to put the Quakers ahead, but Richard Davies slotted into an empty net after a Jordan Pickford error.
Phil Trainer notched from close range for the Bucks, but Danny Lambert's superb volley pegged them back.
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Darlington manager Craig Liddle told BBC Tees:
"Jordan Pickford is very disappointed, but if anybody can come away from this with credit it's Jordan.
"When a goalkeeper makes a mistake it usually ends up in the back of the net, but he's got nothing to be disappointed about.
"I've told him that, the lads have told him that, he's disappointed because he feels he cost us a goal but there are no fingers being pointed at him.
"Danny Lambert's got a fantastic strike on him, and he'll remember that one for the rest of his career I would think."