Has a growl at about 55 and above, only when under power. If I let off the accelerator, it stops. Has a new auto tranny, so that isn’t likely. Wouldn’t be a wheel bearing, because that would be constant, and I don’t think they sound like that going out. Possibly carrier bearing? or rear end input shaft bearing? This is in 4high, with hubs out, so it’s not the front end. I’ve only had it a few weeks. Any ideas from someone who has more experience with these?