weird noise in reverse

[magnifico12312]

so the other day i got a new clutch, shocks, brakes, and driveshaft. I went off road and went into 4x4 low. When i got back to 2x4 I had to go in reverse and I heard this weird noise. the noise almost sounds like metal rubbing on more metal. I feel as if the noise is comming from my transfer case, this leads me to believe that there is something wrong with my chain. But I dont know if somebody could tell me something about this it would greatly appreciated. By the way the noise only happens in reverse no other gear.