Thread: Vibration in 2WD only! Series II SWB

If you pulled the rear tailshaft out, you could put the Landy in 4wd and drive it. This will eliminate the rear driveshaft from the equation. If there are no vibrations and all is well you will need to inspect and see what is wrong with the rear shaft.

Ian
Bittern

just to finally clarify now ive been under the landy the front u/js on the prop shaft are in phase.

From what i can see the springs are higher then a normal series and the previous owner said they were military springs if someone can shed some light on on military spring height.

the diff pinon and t case angles are both at a horizontal plane with eachother (give or take a few degrees.) so no major angle on the diff or transfer case. however the front prop shaft does look to be on quite a heavy angle between the two possibly because of the higher springs.

"Military" springs as far as I know are simply the heavy duty civilian ones.

However, it is possible that the term was used loosely to mean that it has been fitted with military shackles. These are about 50mm longer and easily recognised by the fact that they have a cross brace bolted between the plates. On military (Australian) Landrovers these are coupled with similarly extended spring hangers, usually with separate spring anchor holes in the standard position as well so the pinion shaft and swivel angles are unchanged. Some owners have raised the suspension on civilian Landrovers by fitting the military shackles only, which results in the axle housings being twisted from their normal position, and is likely to lead to the sort of issue you report.

Just a thought, how tight is the spline?

If there's any binding at all that can give a vibe.

D2's had a shaft upgrade to roller bearing splines as some were exhibiting a rumble and vibration on hard acceleration out of tight turns.
The standard shaft wasn't extending quite quickly enough.
And I had similar when I first fitted a new DC driveshaft recently, it took a few km to plunge and extend and 'loosen' up.