↓ Advertise on Defender2 ↓

Home > Maintenance & Modifications > Lowered Suspension & Gearbox/Propshaft Vibration
Post Reply  Down to end
Page 1 of 1
Print this entire topic · 
Scamperbid



Member Since: 19 Nov 2017
Location: Kent
Posts: 34

United Kingdom 2007 Defender 90 Puma 2.4 CSW Rimini Red
Lowered Suspension & Gearbox/Propshaft Vibration
Recently fitted 2" lowering red springs and Bilstein B6 shocks to my 57 plate Def 90 PUMA. This has made a noticeable improvement to the handling, reducing body roll through corners etc. The side effect of this is that I have a vibration that I can feel through the gear stick/transmission around 50 mph in 4th/5th/6th under mid pace acceleration; by 60 the vibration has passed. I had read about this on the forum beforehand so it did not come as a complete surprise and I understand the solution is to have the propshaft re-balanced.

Appreciate any thoughts from members on this topic and if anybody knows of a company that provides this service in Kent/South London area?
Post #688813 25th Feb 2018 5:46pm
View user's profile Send private message View poster's gallery Reply with quote
Pickles



Member Since: 26 May 2013
Location: Melbourne
Posts: 3753

Australia 2013 Defender 90 Puma 2.2 CSW Keswick Green
From my limited knowledge I could be wrong, but I don't think it's rebalancing that you need. I've heard that lowering alters the "angle" of the prop shaft, and so maybe you need a different or an alternative uni joint/propshaft?
Pickles.
Post #688884 25th Feb 2018 9:45pm
View user's profile Send private message View poster's gallery Reply with quote
Roy5695



Member Since: 15 Feb 2014
Location: Cornwall
Posts: 1123

United Kingdom 2011 Defender 110 Puma 2.2 XS DCPU Indus Silver
Mine does this, but I don't have any lowering or raising of the suspension!!

Would like possible suggestions too! 2011 Defender DCPU 2.2 - https://www.defender2.net/forum/topic30623.html

Instagram - @r22oyp

Roy
Post #688961 26th Feb 2018 11:28am
View user's profile Send private message View poster's gallery Reply with quote
grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4784

United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
It could be a UJ. The running angle has changed so it may now show up where it didn't before Thumbs Up 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton
Post #688963 26th Feb 2018 11:53am
View user's profile Send private message View poster's gallery Reply with quote
Mo Murphy



Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2079

United Kingdom 1984 Defender 90 200 Tdi HT Pennine Grey
I'd be inclined to check your Propshaft UJs and your swivel preloads and suspension bushes.
By lowering the suspension by 2'' you have changed the geometry of the suspension, the load borne by bushes changes slightly, your castor angle will change slightly and the Propshafts run flatter changing the locations of the loads on the UJs.
At 11 years old and if it hasn't been done already then you should be considering 4 new UJs, rebushing the suspension and checking and adjusting the preload on the swivels.
HTH
Mo The Land Rover 90 - Many are called, few are chosen.
Post #689016 26th Feb 2018 3:51pm
View user's profile Send private message View poster's gallery Reply with quote
roel



Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

Netherlands 2003 Defender 90 Td5 PU Caledonian Blue
At standard height your rear propshaft is almost in line now after lowering your U joint have to work more so I think it will be one off the rear U joints. I suspect the one on the diff side.

The front is getting flatter so I don't suspect the front U joints but I don't rule them out either.
U joints can have a long life if greased and keep moving. If the grease stops moving they wear out quickly. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)
Post #689025 26th Feb 2018 4:36pm
View user's profile Send private message View poster's gallery Reply with quote
Scamperbid



Member Since: 19 Nov 2017
Location: Kent
Posts: 34

United Kingdom 2007 Defender 90 Puma 2.4 CSW Rimini Red
Thanks for the feedback.

Having read the various comments and driven the Landy a few times, I decided to put the standard springs back on the car paired with the new Bilstein B6s. Yes, it sits a little higher however, the ride is less jiggly than with the lowered suspension and still much tighter than before with the old shocks. More importantly, the vibration from the propshaft/transmission has disappeared.

I have therefore concluded that fitting the B6s to the standard spring set up is the best compromise for an improvement in ride/corner wallowing, unless you are prepared to address the vibration issues, which inevitably over time, will create other problems.

I have also become adept at changing springs and have the skinned knuckles to show for it!
Post #690553 3rd Mar 2018 5:23pm
View user's profile Send private message View poster's gallery Reply with quote
2010Blackdefender90



Member Since: 07 Jan 2018
Location: London
Posts: 562

United Kingdom 2011 Defender 90 Puma 2.4 SVX Station Wagon Santorini Black
Fit bigger anti roll bars front and rear.... body roll removed totally.
Post #690617 3rd Mar 2018 7:28pm
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 1 of 1
All times are GMT + 1 Hour

Jump to  
Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
DEFENDER2.NET RSS Feed - All Forums