Prado - Vibration

Submitted: Monday, Apr 07, 2003 at 07:05
ThreadID: 4255 Views:2341 Replies:4 FollowUps:3
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G'day all,

I have a 6 week old 3L TD Prado and have had it lifted at ARB with OME 2" lift. I have noticed that on heavy corrugations I get an audible vibration from the underside, but not on the tarmac. As a result of the lift both drive shafts appear to have extended about 3/4" as to be expected. Has anyone experienced similar vibration after lift. The OME suspension system with bigger front struts and heavy duty srings all round has worked very well offroad over diverse terrain and extra clearence has certainly helped over rocky terrain.

Any comments appreciated.

K
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Reply By: Tony - Monday, Apr 07, 2003 at 09:06

Monday, Apr 07, 2003 at 09:06
Bit hard without looking at the vehicle but;

Is it a drive line vibration?

or a suspension componnet vibration?

I tend to lean towards suspension. If it happened after off road driving the spring (s) may have moved on their seats and can rattle on corrugrations if so get them re set making sure there is a rubber base under them that has a small step in it to keep them in place.

Other than that take it back to place of fitment and get them to solve the problem.
AnswerID: 17021

Follow Up By: Kelly - Monday, Apr 07, 2003 at 09:32

Monday, Apr 07, 2003 at 09:32
Thanks for reply Tony.

It looks like there are rubber seats for the springs and are seated correctly. I have spoken to ARB (Richmond) and apparently the current angle of the drive shafts are not angled enough to cause any significant vibration. They suggested maybe loose heat shields...etc..nothing major. I do not get the vibration on the road though. Will keep an eye on it though.
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FollowupID: 10617

Reply By: bambi - Monday, Apr 07, 2003 at 09:59

Monday, Apr 07, 2003 at 09:59
Kelly,

have a good look at any metal bash plates underneath your Prado. I have found that while the OME suspension does work a lot better, it does tend to transmit corrigations a bit more than the OE suspension. Try packing them out with a little rubber sheeting, you can get it from Clark Rubber, should set you back no more than $5 for the job.

Cheers
AnswerID: 17025

Follow Up By: Kelly - Monday, Apr 07, 2003 at 10:10

Monday, Apr 07, 2003 at 10:10
Hey Bambi,

Did you mean rubber sheeting for springs or to wedge between bash plates? Apologies for being slow off the mark.

Kelly
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FollowupID: 10619

Follow Up By: bambi - Monday, Apr 07, 2003 at 13:09

Monday, Apr 07, 2003 at 13:09
Hi Kelly,

sorry about that. I did mean the rubber sheeting type. I used I think 4-5mm thick stuff. What I did was to loosen all the plates and have a look at where things were rubbing and then cut some of the rubber to suit the area. Once this was all done re-tighten all the plates and you should be in business.

The other week I went up the Ols Settler's Road from Wiseman's Ferry to Wollombi, and couldn't hear myself think. Now, they're fine.

Cheers,
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FollowupID: 10629

Reply By: Truckster - Monday, Apr 07, 2003 at 11:42

Monday, Apr 07, 2003 at 11:42
Ask Dave Z here at the Prado List 90s Cool list.

he has a Prado with lift kit in it, he came round yesterday, plannin border track trip.
AnswerID: 17034

Reply By: paul - Monday, Apr 07, 2003 at 14:08

Monday, Apr 07, 2003 at 14:08
this para below is from the yahoo 90 series site:

From:
To:
Sent: Thursday, March 20, 2003 4:42 PM
Subject: [90scool] Dropping the Front diff...
> Guys just to let you know I have managed to drop the front diff down 40mm
and it has brought the CV angles back to an amazingly good angle. What
supprised me was how easy it was. Just undue the front 2 bolts on the front,
obtain some longer bolts (standard are 180mm) I used 250mm and tilt the diff
down. Depending on the amount of lift you could drop it from 10-40mm. I used
steel washers until I found the right position and now I am getting a steel
block cut to the correct length.
>
> By tilting the diff down it has made bugger all difference (in angle) to
the main driveshaft from the transfer case and there is no vibration or
noise coming from the front drivetrain. In fact the car drive 100% better as
the CV angles are well within their limits. I am yet to try putting the
front bash plate back on and it may need some mods however will advise and
post some photos soon.
>
> Cheers
AnswerID: 17047

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