underpressureWs6

iTrader: (17)

ok so after about 4k miles my moser 9-inch is now making a WHRRRRRR noise while cruising and accelerating, it is dead silent when i am not on the throttle. it ran for 3200 miles at 540rwhp with no issues now i have up'd my power output to 644rwhp and it starting to make this whrrr noise. its very loud, almost as loud as my exhaust while cruising at light throttle.... its an aluminum center section with 3:50 gears and a trutrac with 31 spline axles. thanks for any help!

underpressureWs6

iTrader: (17)

the noise speeds up or slows down depending on speed if that helps at all

therabidweasel

iTrader: (5)

31 splines might be a little light for 650hp. Sounds like its the gears (not bearings) though...not sure it would whrrr if its.just twisted splines.

underpressureWs6

iTrader: (17)

what would cause the gears to make this noise? did something shift or give?

Bob@BruteSpeed

iTrader: (16)

I'd pull out the center section and have it inspected. Bob