Are any others hearing a whine in the transmission during deceleration at about 20 mph? It makes a faint whining sound when it starts to shift down to first. Any help is appreciated.

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'99 Black Lightning #0055
UPR filter & adapter, R9 Superchip, chrome wheels, best time: 13.295 @ 102.28, 1.87 60'
on F-1's

 

When I put it in first my transmision whines, but if I leave it in OD it doesnt. Go figure

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99 F-150 Sport XLT Black x-cab 4.6L auto 3.55
K&N filter, dual series 40 flowmasters
Ground Force 2 in. rear drop