04 D2 Shaking at 27mph

[KMSDisco]

New member, first post!

My 2004 Disco II project has been a great learning experience for an aspiring rover-holic like me...im blessed with new "educational opportunities" everyday! lol

After doing a head gasket job and installing a terrafirma suspension/steering damper this past month, the next project is to address an odd shaking at 27mph (really its 26-28mph but only this small range). I've seen some posts directing 1. shaking in the steering wheel to unbalanced tires or 2. shaking in the seat to drive train issues. It really is both shaking everywhere honestly so idk.

Im getting a new set of tires this week and just had the front drive shaft replaced about 14 months ago. im doubtful that the new tires will completely solve it, so i would greatly appreciate any ideas/checklist for what this could possibly be.

Thank you in advance!

 

[Toran]

Make sure everything is bolted on tight. Check all lug nuts - tighten in a star pattern.

 

[discostew]

Better check that front prop shaft If it letsloose it will break the side of the trans case.

 

[gthphotography]

I had the prop shaft issue, but mine was at 35 and 70mph. More recently, my cooling fan had one blade that was missing a piece and my truck violently shook. Replaced it and no shake. But in regards to the others, check your bolts.