The problem is with my 83D-T

When applying the brakes, I have a very bad vibration (seems like the front end) that makes the car unsafe. It started small and grew in proportion.

So far I've done the following but no luck:

1. Removed all brake pads and check for calipers that were frozen. All are in working order and clean.

2. Replaced a suspect tie-rod. This eliminated creaking noise when turning the wheel in a stationary position, but did nothing for the vibration under braking.

3. Shook every conceivable joint under the front end of the car with brakes applied and without brakes applied.

4. Checked all caliper bolts and surrounding bolts.

5. Checked for horizontal looseness on the front wheels.

Help, what am I overlooking? This is driving me crazy and my daughter needs her ride.

Thanks

Don

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DAILY DRIVERS:
'84 300DT 298k (Aubrey's)
'99.5 Jetta TDI IV 251k (Julie's)
'97 Jetta TDI 127k (Amber's)
'97 Jetta TDI 186k (Matt's)
'96 Passat TDI 237k (Don's
'84 300D 211k Mint (Arne- Undergoing Greasecar Conversion)

SOLD:
'82 240D 229k (Matt's - Converted-300DT w/ 4 speed