View Full Version : Are shocks the same length on a 2 inch lift compared to OEM??
stevo68
21st January 2009, 02:41 PM
G'day All,
As you will be aware, I've just had Smokey lifted. A question though...would/ should the shocks be the same length as the OEM's?? Pete and Justin who have extensive experience...don't seem to think so. I got Dobinson shocks and coils for the front. Would be interested what other's think and whether their shocks were longer or same as the stockers that came with the D2...thanks. Obviously I ask as mine were the same length:
OEM left...new shock right
https://www.aulro.com/afvb/images/imported/2009/01/478.jpg
Regards
Stevo
Slunnie
21st January 2009, 02:52 PM
They're typically something around the same or a little longer. There are not usually any great gains in length because the shock still needs to work around all of the other limitations in the vehicle. In the D2 these are brake/ABS line lengths and the Xmember under the front propshaft. 2" springs are also not usually significantly different in length compared to an OE spring and the shock lengths will also reflect this.
I would sweat about what you have. Actually I ran King raised fronts very happily with OE shocks.
Psimpson7
21st January 2009, 02:58 PM
Hi Slunnie,
Interesting one. Even with all the kit which had the spacers for the brake lines and so on?
The replacement ones were exactly the same as the originals.
The rear axle for example had another 30 or 40mm or droop travel when jacked up beyond full extension of the shocks...
The springs were a good 2" longer (altho I agree will settle a bit)
Rgds
Pete
Slunnie
21st January 2009, 03:08 PM
50mm is a bit, are they soft springs?
If you space the Xmember down, extend the brake line and pull the aABS lines through and slightly alter the bump stop heights to suit the shock you could run a 50mm longer open length shock on it. Even though it will settle, the static ride height is largely irrelevant when setting the shock lengths as they need to suit the springs free length. The springs should have a load on them when the axle is fully dropped to prevent the spring moving and clunking.
The kit maker dosn't want all of this to happen for various reasons like cost and complexity.
It'll be the same for the rears also. You can run longer shocks to suit the lengthened effective free length of the bags and spacers etc. You are limited by the brake/abs lines but I think 4x4intelligence supplied those. The next limitation will be the Watts linkage when your shocks get to about 70mm longer or about 650mm open length. Even though the airbag will extend further it is critical that they are not allowed to reach their maximum extension - unlike a coil which will just come loose, the actual airbag will seperate from its upper section
bolts
21st January 2009, 03:31 PM
Stevo my shocks are old man emu and I run a 2" lift on my D2
My rear shocks when fully extended are 625mm from eye to eye without dropping the spring when at full extension and without changing brake lines, abs or being stopped by the watts linkage.
Mine run very well on road and have no issues with steering or handling.
I would suggest going back to the supplier of the 2"lift and asking him for the full extension measurement of the shocks as it sounds to me you have standard shocks on there which will limit your axle when off road and will give you less than standard flex.
grover7488
21st January 2009, 03:35 PM
Hi stevo
stock front 330(closed)-548(open) rear 346(closed)-553(open)
Oldmanenu front373 -601 rear 368 -584
2" Bilstein front390 -615 rear 388 -618
I run 2" OME springs and was impatient:angel: so used the stock shocks. The front wasn't too bad but the rear kept topping out especially on speed humps etc. Changed now for OMEs and has sorted that out but would rather the Billys
grover7488
21st January 2009, 03:38 PM
My springs when fully extended are 635mm from eye to eye
:eek::eek::eek:
sounds too long?
Slunnie
21st January 2009, 03:39 PM
Thats really interesting that. I'm not sure what the story is with rear shocks in D2's and clunking.
Psimpson7
21st January 2009, 03:44 PM
I'd guess topping out, if running std shocks on lifted springs. (Im guessing you already know that and I have misread your question or just generally got confused!!)
Slunnie
21st January 2009, 03:59 PM
Oh absolutely, but its interesting how the rears clunk when they top out but the fronts dont. When I started running Rancho they run an internal bumpstop to prevent this so the published lengths given actually are not completely true lengths, but the internal bumpstops worked well. When I then moved to Bilstein, these shocks didn't have the internal bumpstops and I was a bit worried - but nothing.
Psimpson7
21st January 2009, 04:01 PM
My LTR's are bloody awful, if the pressure drops for banging... sounds like the a frame is loose:eek:
cucinadio
12th June 2009, 10:53 AM
Hi stevo
stock front 330(closed)-548(open) rear 346(closed)-553(open)
Oldmanenu front373 -601 rear 368 -584
2" Bilstein front390 -615 rear 388 -618
I run 2" OME springs and was impatient:angel: so used the stock shocks. The front wasn't too bad but the rear kept topping out especially on speed humps etc. Changed now for OMEs and has sorted that out but would rather the Billys
excuse the ignorance, but what is ment buy topping out
cheers
Redback
12th June 2009, 11:07 AM
excuse the ignorance, but what is ment buy topping out
cheers
Going to the end of the shocks travel:D
OK my first lift on my D2 was a Old Man Emu 2" (40mm)lift, the shocks supplied were Bilsteins all round standard length, it became apparent that they were too short first time I went off road, as they were topping out very badly, because these were supplied incorrectly according to Heasmans, they were replaced and the 2" extended Bilsteins were supplied to me as replacements, I still have the 2" extended rears in the back of the Disco with my 4" lift and they are fine:eek:
Work that out:confused:
Baz.
Urban Panzer
13th June 2009, 03:21 AM
Does anyone run 2" lift with "factory" standard shocks ???
just wondered if / what diff / limitations if any it makes. Im considering a 2" SLS lift, just wondered if it was a def need to change the shocks to ? as I just got a pair of brand new genuine ones for the rear for £23 and want to use em :D
Pedro_The_Swift
13th June 2009, 06:55 AM
Its interesting to read where no-one actually makes SLS SPECIFIC shocks,,, but Land Rover;).
The billy part number should be in TGO,,,
Hey Urban,,
spacers? or bags?
Urban Panzer
13th June 2009, 08:33 AM
Its interesting to read where no-one actually makes SLS SPECIFIC shocks,,, but Land Rover;).
The billy part number should be in TGO,,,
Hey Urban,,
spacers? or bags?
def spacers, keeping my bags :) would rather keep the factory shocks as well, keep the cost down as I'll need bigger tyres etc to.....
Dunno whether to fit spacers on the front as well tho, my genuine winch springs are only about 11mths old, and they ride really well, so reluctant to change em yet.
I see tombie on here does SLS kits, theres a company in the states that do them but also come with front spacers to. Its a difficult subject as eveybody wants diff things from a lift, I just really want some extra heigght so I can get some bigger tyres to get some more height under the diffs and get the front bumper a bit clearer from the ground. Next problem will be tyre size (biggest) I can go with no other mods.......
grover7488
15th June 2009, 07:44 PM
Going to the end of the shocks travel:D
OK my first lift on my D2 was a Old Man Emu 2" (40mm)lift, the shocks supplied were Bilsteins all round standard length, it became apparent that they were too short first time I went off road, as they were topping out very badly, because these were supplied incorrectly according to Heasmans, they were replaced and the 2" extended Bilsteins were supplied to me as replacements, I still have the 2" extended rears in the back of the Disco with my 4" lift and they are fine:eek:
Work that out:confused:
Baz.
hey baz from my notes the 2" billies are Fr 390 closed- 615xtended and Rear 388 - 618.
Slunnie's are about 393 -655.
Maybe you don't have enough travel or drive fast enough (particularily on the rebound) to use the total shock length?
Slunnie
15th June 2009, 11:25 PM
hey baz from my notes the 2" billies are Fr 390 closed- 615xtended and Rear 388 - 618.
Slunnie's are about 393 -655.
Maybe you don't have enough travel or drive fast enough :wasntme: (particularily on the rebound) to use the total shock length?
I think there are a couple of spec Bilstein.
There is the standard replacement which I think is a fraction shorter than standard.
2" lift Bilsteins which are a little longer to suit the slightly longer springs.
Heasemans had some 2" longer (as opposed to being for a 2" lift) shocks which I thought had a shaft transplant, but Baz will know better.
The ones that I have are a 6100 series 10" travel.
JayBee75
16th June 2009, 07:26 AM
I just fitted a 2" lift with King Springs and Bilsteins. SLS rear. My understanding is that this is a longer shock than standard.
My Brother in laws bets mate is the National Distributor for Bilstein and I argued with him that I could get a Bilstein shock for a 2"inch Lift SLS rear, he does not recognise the part numbers I gave him, only the standard Billies which are apparently not suited for a SLS rear.
Anyway when I get home I will post up the code numbers for the Bilsteins I just had installed with my 2" lift if that helps.
Interesting thing is if The Aus distributor does'nt recognise this code, where are these places supplying the lift for the D2's getting the shocks from, US/Germany?
Cheers
JB
Redback
16th June 2009, 10:38 AM
hey baz from my notes the 2" billies are Fr 390 closed- 615xtended and Rear 388 - 618.
Slunnie's are about 393 -655.
Maybe you don't have enough travel or drive fast enough :wasntme: (particularily on the rebound) to use the total shock length?
I have the 50mm extended shocks in the rear, made by Heasmans not the 2" lift off the shelf shocks, this may be the difference and as I say below are around the same length as the Patrol spec rears that Slunnie has, I have the same spring lift as Slunnie, so if they work on my D2, theoreticly they should work on Slunnies D2 as well.
I think there are a couple of spec Bilstein.
There is the standard replacement which I think is a fraction shorter than standard.
2" lift Bilsteins which are a little longer to suit the slightly longer springs.
Heasemans had some 2" longer (as opposed to being for a 2" lift) shocks which I thought had a shaft transplant, but Baz will know better.
The ones that I have are a 6100 series 10" travel.
Hey Simon, I had the Patrol spec rears in Procomp (10") in the D2 first up and after they shagged I had my old 2" extended billies rebuilt because they were almost the same length fully extended as the Procomps when I put them side by side, which is 635mm and so far they have not topped or bottomed out.
Both front and rears are 10" almost and as you know Simon to go longer you need the short body long travel 7100 series Billies and they are way to expensive for me.
I'm pretty sure Tombie has the 7100 series in his D2 with the 4" lift.
Baz.
grover7488
16th June 2009, 06:12 PM
I was just using Slunnie's shock mm as a guide as there didn't seem to be too much of a difference between the Aus spec'd 2"(BE5 B994F / B995R) and the 6100's.:cool:
Thanks Baz for the mm (of 635mm). So it seems there may only be 20mm difference and that probably makes sense as to why yours don't top out. I had always wondered whether the Aus spec'd would do a 3"-4" lift:D
Seems we are the only country lucky enough to get those part numbers:p
Slunnie
16th June 2009, 06:41 PM
I have the 50mm extended shocks in the rear, made by Heasmans not the 2" lift off the shelf shocks, this may be the difference and as I say below are around the same length as the Patrol spec rears that Slunnie has, I have the same spring lift as Slunnie, so if they work on my D2, theoreticly they should work on Slunnies D2 as well.
Hey Simon, I had the Patrol spec rears in Procomp (10") in the D2 first up and after they shagged I had my old 2" extended billies rebuilt because they were almost the same length fully extended as the Procomps when I put them side by side, which is 635mm and so far they have not topped or bottomed out.
Both front and rears are 10" almost and as you know Simon to go longer you need the short body long travel 7100 series Billies and they are way to expensive for me.
I'm pretty sure Tombie has the 7100 series in his D2 with the 4" lift.
Baz.
Gday Baz,
I wouldn't sweat about it. 655mm open is about the retaining limits for the springs anyway, 635 will be fine. I think the 7100 remotes would be too long. They also have rose joint ends which I wouldn't really run on a road truck anymore - they wear and get clicky, and I had mine cut off and repaced with the small type rubber bush instead. This is all why I would just use a GQ rear all round now and revalve one end to suit. The GQ/GU rear is about the same length as the 10" 6100.
Furka
3rd February 2010, 12:22 AM
Up ! Interesting post :)
Urban Panzer
3rd February 2010, 06:28 PM
Hey all, good to read thru all this again.........
Few questions / opinions.
Got 2" OME 779's on the front and a 2" SLS spacer under the airbags. Still using factory shocks currently. Pro's and cons for this setup ?
If I fit OME shocks, I assume they will travel longer both up and down, so has anybody felt the need to lower the bump stop ?
Running 265/75-16's so Im thinking I don't want them to stuff themselves up into the arch to far, so bumpstops would do that, or shall just let the shock do it?
Im not quite sure I get the shock "topping out" scenario, as if you use factory shocks, it should travel no further than it did before the lift ? or am I missing something lol.
I can understand the shock "bottoming out", but it does that anyway to limit axle travel
stevo68
4th February 2010, 10:53 AM
Hey all, good to read thru all this again.........
Few questions / opinions.
Got 2" OME 779's on the front and a 2" SLS spacer under the airbags. Still using factory shocks currently. Pro's and cons for this setup ?
If I fit OME shocks, I assume they will travel longer both up and down, so has anybody felt the need to lower the bump stop ?
Running 265/75-16's so Im thinking I don't want them to stuff themselves up into the arch to far, so bumpstops would do that, or shall just let the shock do it?
Im not quite sure I get the shock "topping out" scenario, as if you use factory shocks, it should travel no further than it did before the lift ? or am I missing something lol.
I can understand the shock "bottoming out", but it does that anyway to limit axle travel Hmm just reminded me....I have noticed that I get a thumping sound...especially on a recent trip to Fraser when going over humps....have meant to follow up on that. Definately from the rear and from memory seemed to be specific to one side.....the right from memory. ANy ideas,
Regards
Stevo
Redback
4th February 2010, 11:14 AM
Hey all, good to read thru all this again.........
Few questions / opinions.
Got 2" OME 779's on the front and a 2" SLS spacer under the airbags. Still using factory shocks currently. Pro's and cons for this setup ?
If I fit OME shocks, I assume they will travel longer both up and down, so has anybody felt the need to lower the bump stop ?
Running 265/75-16's so Im thinking I don't want them to stuff themselves up into the arch to far, so bumpstops would do that, or shall just let the shock do it?
Im not quite sure I get the shock "topping out" scenario, as if you use factory shocks, it should travel no further than it did before the lift ? or am I missing something lol.
I can understand the shock "bottoming out", but it does that anyway to limit axle travel
It shouldn't do either, the bump stops should stop bottoming out and the extra travel of a 2" extended shock should stop topping out, with the 2" lift the shock has further to travel, because the bottom mount is further away from the top mount now.
If you are getting a thump, it's more than likely the OME shock fitted with the lift isn't an extended shock, but a standard replacement, I had an Old Man Emu 2" lift with standard replacement shocks in my Disco before my current lift, that's what the shop that did the lift recommended, in the end I had to get the extended shocks as mine was thumping due to the shocks topping out.
Hmm just reminded me....I have noticed that I get a thumping sound...especially on a recent trip to Fraser when going over humps....have meant to follow up on that. Definately from the rear and from memory seemed to be specific to one side.....the right from memory. ANy ideas,
Regards
Stevo
As above Stevo, you need the extended shocks in the rear and possibly the front too.
Baz.
Tombie
4th February 2010, 12:14 PM
Gday Baz,
I wouldn't sweat about it. 655mm open is about the retaining limits for the springs anyway, 635 will be fine. I think the 7100 remotes would be too long. They also have rose joint ends which I wouldn't really run on a road truck anymore - they wear and get clicky, and I had mine cut off and repaced with the small type rubber bush instead. This is all why I would just use a GQ rear all round now and revalve one end to suit. The GQ/GU rear is about the same length as the 10" 6100.
Yes, the 7100s have rose joints.. I've not had any clunking (but have rubber boots on them to keep crap out!
Love them.... and the travel... Have yet to flex it since the longer 'short body' 12" travel ones have been fitted...
'cause I still havent got my vehicle back (but its close!)
georgesadlik
5th February 2010, 11:35 AM
Yes, the 7100s have rose joints.. I've not had any clunking (but have rubber boots on them to keep crap out!
Love them.... and the travel... Have yet to flex it since the longer 'short body' 12" travel ones have been fitted...
'cause I still havent got my vehicle back (but its close!)
Tombie,
Where did you get these rubber boots from ? I could use some to protect the rose joints on mine.
Cheers
George
Tombie
5th February 2010, 11:41 AM
Tombie,
Where did you get these rubber boots from ? I could use some to protect the rose joints on mine.
Cheers
George
Local bearing shop...
Powered by vBulletin® Version 4.2.4 Copyright © 2026 vBulletin Solutions, Inc. All rights reserved.