1989 2.9L 2wd starts to rattle at 30mph +

[Quake]

It sounds like it's right under my stick, sometimes it does it, others it doesn't. At 50mph + it gets pretty loud.... Suggestions?

[hogstar]

Shane. Take a look at my post 1986 missing and bucking--solved???
It might be worn throttle cable links, this causes the throttle plate to wiggle with the engine vacuum and the TPS sends bad signals to the PCM(computer).

Good luck.

gil