have a set of used 3.27 gears that are in great shape with no pitting or other blemishes. These were quiet and did not make any noise when I pulled them from my car. These are OEM Ford gears which are the quietest you can buy.
$40.00 shipped or 70 shipped for the gears and an 8.8 trac loc rear end.
FACTORY 3.27 RING AND PINION GEAR FOR A 8.8" REAR. THIS WAS REMOVED FROM MY 91 GT AT 34,000 MILES AND IS IN PERFECT CONDITION. $45 SHIPPED (CONTENENTAL US ONLY)
This item is also listed on ebay....and can be purchased that way if you would like more info PM me.