Vehicle & Technical > Discovery

Bad Vibrations

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Range Rover Blues:

--- Quote from: Disco_Stu on September 05, 2008, 20:46:46 ---Bingo. The doughnut acts as spacer amongst other things.

One quick point however. LR fitted doughnuts for a reason, I reckon the reason was because 200tdi's kept busting diffs. You'll find doughnutted drivelines break less often than UJ'd ones. True, the doughnut, even original (not pattern part) only lasts 12 months but they're still cheaper and easier to replace than diffs.

This by no means advice against changing, I run a UJ and 200 prop myself on my 300, just be aware of the possible downsides.

Stu.

--- End quote ---

Interesting :-k.  I'd assumed it was an NVH issue, but then the 300 series also got the 24 spline axles, so maybe failures had become a problem.

Jeff J J:
As with lot of Land Rover they started using part for next series my Disco is on an L plate and i have dramas some times with parts. Jeff

stageonesimmo:

--- Quote from: Range Rover Blues on September 06, 2008, 00:07:05 ---Interesting :-k.  I'd assumed it was an NVH issue, but then the 300 series also got the 24 spline axles, so maybe failures had become a problem.

--- End quote ---

me too - it coincided with the fitting of the harmonic balance donut to the front diff did it not?  Its still sound advice though as its just plain physics as to why a rubber coupling would be better at absorbing shock loads than a normal stell U/J.......

Range Rover Blues:
Not sure about Disco but on RC the harmonic damper appeared along with the EFi 3.5 engine and the thicker propshafts, slightly metricated suspension etc mid 1980's.

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