Death wobble.... sorta
 

Okay, so I have gotten death wobble in some of my previous trucks, but with my 94 ram it bounces like hell only around 45mph while going around a curve. The weird thing is that the steering wheel doesn't shake at all, its the whole truck, and it feels like its the front left tire that is bouncing.
The front end has just been rebuilt, feels pretty tight and it has a steering stabilizer, so I'm not sure what I can replace to make it quit bouncing, I'm thinking maybe the tires?
Anybody else have this problem?
Or is this actually death wobble? Ive always thought death wobble was when the steering wheel shakes like crazy, not the whole truck bouncing up and down.
It feels like im driving on an oval tire, but only at 45mph around a curve, any other speed or a straight line, its perfectly fine. It has me puzzled.
I didnt wanna have to buy tires yet because it has 37s and they are expensive, but i will if it will make the bouncing stop.
Any insight would be great
Thanks

My 98.5 did the same thing with 33's. Steering stabilizer helped a little but it completely went away when I did a 3rd Gen trackbar conversion.