ABS Questions(2001 Ram 1500)

Well about 2 years ago I was on my way home from the lake and hit a deer with my truck (pulling my 14 foot bass boat).No real damage other than front bumper.My question is the abs light came on right after I slammed brakes and hit the deer.The truck still stopped fine.I replaced the sensor in top of rear end (only 20 bucks) but it didnt make the light stay out.Now my brake light is on abs light is on and speedometer only works when it wants.Also sometimes when I put on brakes I can feel abs pulsing through brake pedal and it takes more pedal pressure to stop(Very scarry)Any Ideas would be greatly appreciated. By the way it is 2001 Ram 1500 Quad cab 5.2 automatic with about 200,000 miles on it .Runs and drives great and I love it.