Member Since: 16 Nov 2007
Location: North
Posts: 179
Johsonrods
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This is my Disco with 2,5" lift kit from Johson rods and STT Discoverer.
I have also received the new 3" lift kit.
One guy told me that liflting the Disco 3 more than 1" put a severe constraint on the transmission, he read that in a French magzine.
I don't see any technical reason why and have not read any trouble with the 2,5" kit (except if you have put big tyres and the car gets in "security very low mode" !!!!)
Any comments?My fifth Disco ...
17th Sep 2010 10:07 am
nighthawk
Member Since: 24 Jul 2010
Location: Malta
Posts: 1163
Not an expert but I think the strain on the transmission mentioned would be on the propshafts joints or half shafts joints. Basically there will be a bigger angle for the joints to cope with. Quite how severe the extra strain is I have no idea.
Not sure if the propshafts or the halfshafts are the ones affected on the independent suspension of the D3, but I do know that Defenders went through propshaft UJs much quicker when fitted with a lift kit, especially so if the vehicle did many high speed road miles. The higher the lift, the quicker they started whistling and eventually fell to pieces.
17th Sep 2010 11:39 am
Gareth Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26702
Your front CV joint will pull apart if you use full lock, and apply too much power. Be very careful !
17th Sep 2010 12:32 pm
cedwat
Member Since: 16 Nov 2007
Location: North
Posts: 179
Sorry translation issue. What is CV joint and what is the Technical reason for that ?My fifth Disco ...
17th Sep 2010 12:54 pm
Gareth Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26702
CV joint is the flexible joint at the end of your front driveshaft. Its the bit that allows the driveshaft to turn with the steering.
Even with standard suspension, if you get into 'off road extended' mode and turn full lock, then apply power the joint can break.
The problem is that the joint cannot bend as much as is needed, especially when the wheel is fully extended in a hole or something.
I have seen it happen twice now.
17th Sep 2010 1:04 pm
cedwat
Member Since: 16 Nov 2007
Location: North
Posts: 179
Okay. I think I understand. When you say "turn full lock", do you mean with my steering wheel completely on the right or left?
The two cases you saw where they using a lift like I have?
Thanks.My fifth Disco ...
17th Sep 2010 1:40 pm
Gareth Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26702
Yes full lock means turning the steering wheel all the way to the left or right.
On both occasions, the vehicles were standard, apart from off road tyres. The first time was in a quarry, and the front wheel was in a rut. The car sensed it was stuck and went into "Extended" mode by itself, which is perfectly normal. The driver applied full lock (steering all the way over to the left or right) and applied some power to get out of the rut and the joint broke, scattering his balls everywhere!
The second time was in deep sand, and I think he just got stuck and the car again went into extended mode.
The danger you have is that your car will still try and pump the suspension up further into "extended" mode. With the shortened rods, it will go proportionally higher, and increase the risk.
I'm not saying don't do it, just be more careful if you get stuck.
17th Sep 2010 2:07 pm
cedwat
Member Since: 16 Nov 2007
Location: North
Posts: 179
Thank you for the explanation. I go to a mud terrain tomorrow to test my 2,5" lift and 275/65/18 stt discoverer. I'll apply what you said if I get stuck: no full lock.My fifth Disco ...
17th Sep 2010 5:20 pm
caverD3
Member Since: 03 Jul 2006
Location: Oberon, NSW
Posts: 6922
And I would advise not ptting it in to super extended mode. “There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System.
18th Sep 2010 12:58 am
CMG
Member Since: 12 Jul 2010
Location: USA
Posts: 956
Another caution to take (and is easy to avoid) is if you have more lift....you'll want bigger tires...and once you hit like a 33" (I think) you run a risk of blowing one of the pumpkins!
But, very very nice looking LR3...I mean D3. 8)17 Discovery 5 HSE Si6, Fuji White on brown | 07 LR3 SE 4.4 Java Black on Alpaca
Club V8/Club OCD
18th Sep 2010 2:07 am
cedwat
Member Since: 16 Nov 2007
Location: North
Posts: 179
How can you avoid "super extended mode"?
What do you mean "pumpkins"? (I usually let them at home My fifth Disco ...
18th Sep 2010 6:20 am
~Rich~
Member Since: 16 Mar 2009
Location: Sydney
Posts: 627
1: don't get hung up on anything!
2: Pumpkins = CV joints.
Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated 2005 TDV6 HSE Silver, LLAMS Height Controller, Tinted Glass, Onroad - 19" GG AT's, Offroad - 18" 275/65 MT, Traxside Dual Battery kit, Rasta Protection Plate, Alpine Roof, BAS Remap, ARB Air Compressor, eDiff Custom Drawer and storage unit -http://www.box.com/s/jem0ilac3cner2mexq64 UHF CB, 4x4 Intellegence RWC, 120ltr Long range tank, Rock Sliders and Compressor protection plate Beanie grill, De Tango.
18th Sep 2010 8:18 am
cedwat
Member Since: 16 Nov 2007
Location: North
Posts: 179
Thank you that is absolutely clear now. I just need to find the French term for it now !
I see in your signature "adjustable rods". Is it same as I have got?My fifth Disco ...
18th Sep 2010 9:43 am
~Rich~
Member Since: 16 Mar 2009
Location: Sydney
Posts: 627
No as the name says you can adjust the lengths to suit the lift you want, I set mine to - 8mm the standard length. This gives about 50mm lift. Yours are fixed length.
Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated 2005 TDV6 HSE Silver, LLAMS Height Controller, Tinted Glass, Onroad - 19" GG AT's, Offroad - 18" 275/65 MT, Traxside Dual Battery kit, Rasta Protection Plate, Alpine Roof, BAS Remap, ARB Air Compressor, eDiff Custom Drawer and storage unit -http://www.box.com/s/jem0ilac3cner2mexq64 UHF CB, 4x4 Intellegence RWC, 120ltr Long range tank, Rock Sliders and Compressor protection plate Beanie grill, De Tango.
18th Sep 2010 10:13 am
cedwat
Member Since: 16 Nov 2007
Location: North
Posts: 179
Wow that's very interesting!
It means you can adjust them when they are on the car or do you need to remove them to adjust?
Where did you get them?
Is 5 cm the max lift of the car or do they make 2,5" models ?My fifth Disco ...
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Custom Drawer and storage unit -
