(I have 97 D1)After recently making some (steering,suspension and driveline modifications)(actually always doing something) I have several things going on(don't know if they are all related or not).I have mysterious(inconsistent but escalating) popping noise(during accelration from stop and then as I slow to a stop).Now have noise that sometimes sounds like(metal or something loose but sound related to speed or rotation(can't tell if it is from wheel area or diff).The mods I made were HD front D shaft,RTE steering components,GBR rear axles and added spring isolators front and rear.(and just rotated all tires including the spare in the mix).When we check everything(that makes sense) it all apears to OK.Last night driving was getting vib throughout and felt as if emergency brake was on.Drive it to the shop this morning and it ran fine..I think I need to get tires(possible check balance) and alignment after steering component install but I think I did too much at once.Before all this stuff it was fine but it doesn't make sense.I can't leave well enough alone but trying make vehicle more capable.Sorry for the ramble but am I not checking or thinking about something obvious?