RogersSH

I just bought a 99 trans am ws6 and there are a few bugs im trying to figure out my abs inop light only comes on if i drive it for about 15 20 minutes i have a slight whirring noise in the rear end which makes me think the bearings need replacing also a skip shift light comes on half the time when i want to shift from 1st to 2nd and it tries to force me to go to third and the rod to my shifter gets hot when the engine heats up im already planning on replacing all fluids front to rear and replacing the bearings i just need some more input