Hey all, first post here. I have a 95 K1500 with 462000 kms on it. I’m getting a loud whir or howl in the front end only when i’m in 4wd and above 30-40 km/h and it gets louder with increased speed. It’s tough to isolate since both front wheels spin well with maybe a slight worn bearing noise in the front left side?? I’ve replaced front CV axles, upper and lower ball joints inner and outer tie rods, sway bar links, front drive shaft u joints, idler arm and pitman arm in the last year. I’m thinking it’s gotta be a front wheel bearing but feel it’s a bit odd that I only hear it in 4wd. Any other suggestions?? Could it be something in the front axle or transfer case? Thx in advance!!