Toyota Repair: Vibration(shaking)in the front end of my 94 Toyota extra cab two wheel drive., loose bolts, driveline

Question
When starting out or slowing down to stop I am getting a vibration from either the rear or the front of my truck.  I just replaced the rotors, bearings(inner/outer), and brake
pads(all front)...it feels better, but still a vibration especially noticeable at 10 to 15 mph and at 45 mph.  Any suggestions?  Could it be something coming from the rear end?

Answer
PLEASE MAKE SURE YOUR DRIVELINE IS TIGHT. Out of every older Toyota I have worked on, 8 out of 10 has had loose bolts where the driveline attatches to the rear pumpkin. There are 4  12 mm bolts. I would guess this would be the issue. While under there check the front ones too.