VIBRATION !,Any ideas?

[Ldub]

John,
Thanks for the input,I've been under there with the mech. quite a bit lately & the exhaust looks like it's all good.The vibration starts at about 20 or so mph.as barely perceptible & gets more pronounced when more speed is added. When going 60 mph. you can feel it & hear it, but when I shift from drive into 3rd, the rpm. increases but the frequency of the vibe remains constant.We're looking at everything driveline related. The sound isn't like a bearing rumble, it's less noticeable.
One thing that I can't comprehend is when VX & tree made contact, R/R tire got a hole in the sidewall & all the energy was transfered through the wheel into the axle & axle housing. The axle & housing were bent but the rim is straight,a testament to the strength of suzu rims I guess. Yes, I am sure the rim is straight because I had the tire removed & the rim put on the balancer at the tirestore where I used to work.There was almost no runout (maybe 1/64),not enough to cause this much vibe.
Thanks again to all who have taken the time to respond, Ldub

[Ldub]

Well, finally get to drive VIBE FREE !...turned out to be the coupler between the output shaft & the first (going front to back) U-joint.Glad that's over, now the weather is warming up & I've got much wrenching to do. (Piaa 1000's,
new HID wiring harness from Tone so HID's will stay on w/ hi beams,Borla muffler,new Thule Xpedition roof rack,fuel filter, etc.)
Thanks again to all who helped with ideas/suggestions & Happy Easter, Ldub

[Ldub]

Well, I thought I had it fixed, but the more I drove it at highway speeds , the more I noticed a "harmonic vibration" It's still 80-90% better than it was, but still not right.
Anyway, took it to a tranny (NO not THAT kind) shop & watch everything underneath while it was idling in low, & you could see a wobble in the coupler that bolts directly to the trans. case. Bent output shaft...DRAT!
Sooo, now we order parts & wait...but atleast It'll finally be done right...I hope.Also noticed that the rim did get bent, but not on the outside where I thought it would be, but on the inside ???, go figger.Atleast I'll get a rim for a full size spare.
Later, Ldub

[Hotsauce]

If you're patient you might be able to shim the flange match true.

John C.

[Ldub]

If you're patient you might be able to shim the flange match true.

John C.

Put a new out put shaft from trans. to rear drive shaft...works good now.
Sorry, I forgot to update this when I finally got it fixed.