My steering wheel is shaking when I hit 65mph and continues as I increase speed.
This is what I've done so far:
1- Balanced Tires = No change
2- Rotated Tires = No change
3- Installed Bilstein B6 4600 shocks = Shaking was reduced slightly.
BTW- The tires have around 5000 miles on them and are about 2 years old.

What else should I look at that could contribute to this issue?

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2003 XLT FX4 4WD 4 door Super cab. 4.0L. Recently purchased with 78k miles.
Completely Stock, as of today, except for new Bilstein B6 4600s