| Author |
Message |
    
Hendrik
| | Posted on Thursday, April 11, 2002 - 04:21 am: | 
|
Hi there,
I own a '89 Range Rover which suffers from vibration after a 2" lift.
The Discovery II uses a driveshaft with a CV-Joint close to tranny, and I wonder if this could eliminate the vibration.
Does somebody know whether such a driveshaft would fit in my Range - due to the cats and autobox there is not much space.
Which shaft is to be used, does the one from the disco II fit with no other modification than changing the drive flange of the t-box ?
Thanks in advance,
Hendrik |
John C.
| | Posted on Thursday, April 11, 2002 - 09:14 am: |
|
Call Bill at Great Basin Rovers and see if a double cardan shaft would work. You can also try correcting the pinion angle with offset trailing and radius arms. |
PerroneFord
| | Posted on Thursday, April 11, 2002 - 10:21 am: |
|
John,
Unless I'm mistaken, the offset radius arms will increase pinion angle in an attempt to neutralize the steering feel by changing castor. This would make his vibrations worse.
I would suspect the U-Joints first, and second Johns recommendation of giving GBR a call. Even still, sometime these things are tough to weed out.
-P |
John C.
| | Posted on Thursday, April 11, 2002 - 10:40 am: |
|
You're right P, I didn't think about it that way. Funny thing is that I have the castor correcting bushings up front (which got rid of the wandering) but my vibration is mainly in the back. Maybe it's time to call Bill... |
PerroneFord
| | Posted on Thursday, April 11, 2002 - 11:19 am: |
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The rear is generally not susceptible to vibration from small lifts. I got almost 5" of lift before I had any vibes in the rear. I'm at 4" right now with no vibes front or rear.
I am very kind to my ujoints though.. Mobil 1 synthetic grease only. And they get greased about every 60 days.
-P |
John C.
| | Posted on Thursday, April 11, 2002 - 11:32 am: |
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I should check my rear u-joints or replace them. Synthetic grease huh? I didn't even know they had that. Gotta start spending more time at parts store...
 |
PerroneFord
| | Posted on Thursday, April 11, 2002 - 11:47 am: |
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Hheeh...
I've paid close attention to lubrication for many years. Having a dad who worked at GM, and being an engineering student all helped me take a critical look at how vehicles are put together.
The synthetic grease is actually pretty cost effective. I use it for wheel bearings, u-joints, anywhere there are bearings. You can get Mobil, Amsoil, and plenty others.
One day on this board we'll get into a discussion of fasteners...
-P |
Randall Smith
| | Posted on Thursday, April 11, 2002 - 05:09 pm: |
|
I lifted my 92RR only 2" and got some vibrations which only occur at 55-60mph, and sometimes when I take my foot off the gas pedal. Replaced all four u-joints and it did not go away. Maybe I will get the cv driveshaft for the front. Need to do more research as to whats available in drive shafts...no rush.
Perrone: How do fasteners play into this?? I got 16 LR nuts and bolts to go with my new U-joints which were bought at parts store.
Randall |
PerroneFord
| | Posted on Thursday, April 11, 2002 - 05:41 pm: |
|
Oh,
I am just kinda sensitive to the cheap fasteners LR tends to use in spots and their inredible lack of concern for removing those fasteners. It is almost inexcusable for them not to use anti-seize or loctite in certain areas...
Also driveshafts are available from GBR, Six States, and Tom Woods.
-P |
Craig M. Highland (Shortbus)
| | Posted on Friday, April 12, 2002 - 02:10 am: |
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Castor correction bushings have a knack of tearing themselves apart very quickly on vehicles w/ an automatic tranny.
ARB reccomends only to install them in manual tranny vehicles. Not sure why, but..
Went through two sets of those crappers real quick before learning myself...
fwiw-
Craig |
hendrik
| | Posted on Friday, April 12, 2002 - 05:03 am: |
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Oh, I should have mentioned, that I have the vibration at speeds over 80mph. You know, in my country there is no speed limit - maybe that is why my modest lift spells trouble.
Thanks so far !!!
Besides: the same topic seems to be discussed in the discovery section. A link leads to an article/photos of relevant driveshafts. Even an under-car pic to prove that the enormous double-cardan shaft does fit. |
Bill Bettridge (Billb)
| | Posted on Friday, April 12, 2002 - 10:26 am: |
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Craig,
I'll second that - just pulled out the OME castor correction bushings last week. Three out of four had the inner sleeve just floating (and rotating) and two out of three had the urethane portion loose also. All bond with the urethane-to-metal was gone. I pushed them out by hand.
Needless to say - replaced with stock rubber 
Yes, it is an slushbox.
Bill |
Randall smith
| | Posted on Friday, April 12, 2002 - 11:03 am: |
|
Bill and Craig
Thanks for telling us about your bushing woes. One possibility was to use the castor correcting bushings and the cv drive shaft together. But now I will just consider castor correcting radius arms instead.
Randall |
Ali
| | Posted on Tuesday, April 16, 2002 - 12:04 pm: |
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After removing the OME castor bushings, I too noticed the broken bond between the sleeves and the urethane material. They were in the vehicle for around six months. The sleeves did end up rotating inside the bushings and were pushed out easily with my fingers.
I do want to mention that these bushings corrected everything inlcuding vibrations and castor angles. Unless the suspension goes through heavy twisting scenarios, these bushings may not all that bad. Even if the sleeves rotate inside the bushings, I don't believe they will do so inside the arms while on the vehicle. Here are some castor numbers:
2" lift: -0.2 deg castor (little vibes, wandering, dive to the left under heavy braking)
with OME: 2.6 deg (no vibes, good steering, no diving)
with RT front arms: 3.9 deg (no vibes, great steering, no diving)
All with approx 0 deg of total toe.
On the thought of the front driveline, can you have one made at a local driveline/drive shaft shop? I had mine made locally for a decent price. The DiscoII shaft will fit but will be 1" shorter than a RR. These leaves with a bit less spline for those front axle drop outs!
Sorry for the long winded note. |
ChevRangie
| | Posted on Saturday, June 08, 2002 - 04:42 am: |
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My 1983 Rangie is lifted 4" and is fitted with a Disco S11 Front Shaft to stop the Vibrations and works very well.
I'm running the LT95 and it was a bit of messing about to get the Drive flange setup working properly
If you have a LT77 you can buy a drive flange to suit the disco shaft direct from you Dealer. |
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