thump thump thump 44

[Matthew Caprio <cap29100@flash.net>]

Regarding my 88 5000sq:

Background-
*couple weeks ago I had a reliable shop change a front wheel bearing and
tie rod end (different sides)
*last week I changed the noisy fuel pump

Story-
*after loading the car up (approx 350lbs of stuff) and starting off for a
1000 mile Christmas trip last week, I noticed a new sound-- a fast
"thump-thump-thump" that is very faint, but noticable above 50mph while
steering slightly to the right (sounds like running over small pavement
seams rapidly).  First time driving the car in cold weather (it was approx
32° at 4am).  So, I drove around town, wasting trip travel time, just
trying to see if the sound would go away as things warmed up, before making
the 1000 mile trip.  It didn't, so I took the car home, and swapped
everything into my wife's Accord.

*now that I returned, the sound seems to be less noticable (but it's was
dead quiet out at 4 am last time, and it was colder, and there was more
weight)

My question is, where is this sound coming from?  Could it be related to
that changed bearing? or the changed tie rod end? or is it just because I
changed that damn noisy fuel pump that I can now hear a sound that has been
there?!!  I really don't like that thumping sound-- I'm hoping it will get
louder so I can find it..

Matt
Austin, TX