Getting a clean pan seal and fresh fluid pickup back in service on these units starts with having the right two pieces matched to the exact application -- a bonded rubber bottom pan gasket and an Automatic Transmission Filter built with the 38 tall pick-up tube that the pan depth on these transmissions requires. What sets this set apart from a generic Automatic Transmission Filter-and-gasket combo is that tube height: automatic transmission pump damage often traces back to an Automatic Transmission Filter seated too low or too high, and this Automatic Transmission Filter is spec'd for the pick-up distance found in the 5R55N, 5R55W, 5R55S, and 5R55NS family built between 1999 and 2002.The bonded rubber pan gasket seals against the bottom pan rail without the warping problems that loose cork or multi-layer paper gaskets can develop after repeated heat cycles. Both pieces arrive together in one box, weigh 1 lb combined, and are counted against the included parts list before shipping -- a practice REMCO has followed since 1991 assembling transmission rebuild components by hand.This is a 2-piece service set. It does not include friction clutches, steel reaction plates, bands, solenoids, bushings, or any other rebuild components. If your job calls for those parts, they will need to be sourced separately. Review your work order before placing the order so there are no gaps on the bench.To confirm fitment, locate the transmission identification code on the case itself -- do not rely on the vehicle VIN alone, because different configurations were installed across overlapping model years. The code must read 5R55W, 5R55S, 5R55N, or 5R55NS, and the unit must fall in the 1999-2002 production window. If both match, this set is the correct service pair for that pan and Automatic Transmission Filter replacement. Leaking pan or a clogged Automatic Transmission Filter forces the unit to starve for fluid pressure, causing slip and premature wear -- replacing both together closes that failure path in one shot. This set does NOT include friction discs, steel plates, bands, solenoids, or any other internal components -- check your parts list before ordering so nothing is missing from the bench. The Automatic Transmission Filter on this application uses a 38-inch tall pick-up tube: that specific height is what seats correctly in the pan depth of these units, so the wrong Automatic Transmission Filter height leaves the pump sucking air. Contents: 1 bonded rubber bottom pan gasket and 1 Automatic Transmission Filter with 38 tall pick-up tube, 2 pieces total, shipped at 1 lb -- each piece verified against the parts list before the box is sealed. Before ordering, confirm the transmission code stamped on the unit matches 5R55W, 5R55S, 5R55N, or 5R55NS and that the build year falls within the 99-02 range shown. What's in the box 1 x Pan Gasket, 5R55N W S Bottom Pan Bonded Rubber 1 x Automatic Transmission Filter, 5R55N [38 Tall Pick-up Tube] Compatible vehiclesFits Mustang [05-10], Thunderbird [02-05], Explorer [02-10], Explorer Sport Trac [05-10], S-Type [00-02], XK8 [01-02], XKR [00-02], Aviator [03-05], LS [00-06], Mountaineer [99-01].