when i bought my expy on ebay, the seat wouldnt move back and forth. i ordered all the parts needed per a tsb for this issue, and the day it was to be repaired, a fat tech got in it, and pulled it into the shop, and it has worked fine since. been almost 2 years. try finding a heavyweight and see if it works!!!! 
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SUPERCHARGED 5.4L 2003 Expedition Eddie Bauer: 03 harley supercharger with 6lb lower pulley, k&n panel filter, magnaflow catback exhaust, ngk tr6, eclipse avn-5510 headunit, 20" oem f150 wheels. 339 RWHP 440 RWTQ, drilled rotors, hawk pads, LFP SBTB
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