Installing Suspension of GU Patrol

Submitted: Monday, Aug 28, 2006 at 10:25
ThreadID: 37185 Views:11735 Replies:8 FollowUps:10
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G'day

Planning on installing a new Ironman suspension kit on my GU Patrol this weekend, 2 inch lift, have read through the Gregory's manual and it seems farily straightforward, do I need any special tools, or is there any tricks or traps that I need to be aware of?

Thanks in Advance

Snowy
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Reply By: Truckster (Vic) - Monday, Aug 28, 2006 at 10:31

Monday, Aug 28, 2006 at 10:31
you only doing 4 springs and shocks??

Easy job.

Trolley Jack that lifts HIGH, Car stands x4, usual tools, and possibly a crowbar depending on how tight the fit on springs is in their place.
AnswerID: 191407

Reply By: Martyn (WA) - Monday, Aug 28, 2006 at 10:45

Monday, Aug 28, 2006 at 10:45
Snowy,
More than likely after the act but make sure you let the brake lines to the chassis go then can get a bit tight when you are dropping the down to get the springs out.
Keep the shiny side up

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AnswerID: 191412

Reply By: Member - Roachie (SA) - Monday, Aug 28, 2006 at 10:50

Monday, Aug 28, 2006 at 10:50
Reading what the others have said, I must be doing something wrong when I've changed springs on mine and a mates GU.

Even after removing the shockers and sway bars, I've still had to use spring clamps and wind them like buggary to get them out (and to get the new ones in).

I measured my rig on the weekend as the driver's side seemed to be down a bit. The differnce between right and left is a full 30mm at the rear and 25mm at the front. I will now need to look at putting those spring spacers on the driver's side, but am not looking forward to doing battle with those bloody springs and clamps!
AnswerID: 191414

Follow Up By: Truckster (Vic) - Monday, Aug 28, 2006 at 16:02

Monday, Aug 28, 2006 at 16:02
Ive never had to use clamps yet, i dont know why everyone is having such issues. with the 6inch springs I had, we had to use a prybar, but thats the only time yet...
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FollowupID: 449240

Follow Up By: hl - Monday, Aug 28, 2006 at 17:17

Monday, Aug 28, 2006 at 17:17
Hi,

Did mine (GU2) and my mate's GU4 last year, was very easy, the springs just about fell out, certainly no compression needed on both. We just undid shocks, front and rear swaybar and brake line blocks on diff, as well as breather hose.
You have to lift it high enough for the brake disks to just about touch the ground. We did front and rear separately, so only 2 stands were needed.

Cheers
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FollowupID: 449271

Follow Up By: brian - Tuesday, Aug 29, 2006 at 08:22

Tuesday, Aug 29, 2006 at 08:22
roachie did you notice the drivers side front spring is longer than the lhs front spring if you have them in the wrong way round you will get the drivers side lower than passengers side as you have described,
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FollowupID: 449394

Follow Up By: Member - Roachie (SA) - Tuesday, Aug 29, 2006 at 08:26

Tuesday, Aug 29, 2006 at 08:26
Yep, I know they are different lengths and the install on mine was done by Binskins at Wauchope, NSW. I was there in the workshop when he did it and I'm "sure" he got it right.

I don't recall him taking off the Panhard Rod as has been suggested elsewhere on this thread......but he did have the whole truck lifted up on a hoist, so no farting around with stands and bloody jacks.
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FollowupID: 449395

Reply By: Robin - Monday, Aug 28, 2006 at 11:46

Monday, Aug 28, 2006 at 11:46
The job can be made easier by jacking up chassis on both sides and putting blocks of wood under such that its high enough such that the wheel set you are working on is high enough to be fully off ground, i.e. full extension, sometimes springs
come almost out but usually a little stuck on holders.
(have a few log sections here).

Also jack up a wheel and place spring compressors on when spring compressed as opposed to trying to adjust them and compress spring.

Do not try to remove with just one spring compressor , take the time to use two.

Two jacks can also help as does short crowbar and don't want your hands in their
with compressed springs.

Some front shocks don't have much area to hold with spanner to stop rotation when fitting top nut, put all nuts on/off once or twice first with anti sieze grease.

I even do shock rubbers with a little rubber grease on back as some can be tight.

Robin Miller
AnswerID: 191430

Follow Up By: Member - Andrew W (SA) - Monday, Aug 28, 2006 at 12:16

Monday, Aug 28, 2006 at 12:16
Letting off the sway bars also gives you more room to play, and if you can't get the chassis high enough to let you in, try taking the wheels off - even get someone standing on the hubs pushing them down.

Just remember with crow bars and other levering that the springs are HIGHLY sprung and that when they let go, you could have lever, spring or something else bouncing around with a lot of stored energy - you can knock off your head, crush your fingers, drop it on your foot, shoulder, etc.

Avoiding the crowbars and even jacks (on the springs) at all times is the best way.

One other thing on the axle that may need disconnecting is the breather tube too.

Ciao for now
Andrew.
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FollowupID: 449187

Follow Up By: Member - Roachie (SA) - Monday, Aug 28, 2006 at 16:15

Monday, Aug 28, 2006 at 16:15
I've long since ditched my sway bars. Have tried with both shockies removed, wheels off and a mate standing on the hub etc. Even then we've had to work hard on the screw-up spring compressors (2 off) to have any chance of getting springs on/off.

It would be helpful (for the compression of new springs to be fitted) if your workshop had a bench press, so that the springs could be compressed at the bench, spring clamps added there, then the springs transferred to the truck, where clamps could be unwound. But who has got a bench press at home??
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FollowupID: 449244

Follow Up By: Member - Glenn D (NSW) - Wednesday, Aug 30, 2006 at 17:47

Wednesday, Aug 30, 2006 at 17:47
The only problem with the press theory is that you could run out of thread on the spring compressor before the spring is fully relaxed when installing the spring if not careful , but I guess if you knew someone who needed a press they would be on top of that .

My spring install sounded like yours as well Roachie , just took it easy with the old spring compressors.

The problem I had was the rear upper shock mounts were a pain , I originally had Ranchos and the nolathane took some convincing to get on , I just replaced them and after some punishment to myself ( mental ) had to get it up on a hoist with a long lever , the replacements had rubber bushes that went on ok with a bit of lube.

Glenn
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FollowupID: 449743

Reply By: P.G. (Tas) - Tuesday, Aug 29, 2006 at 07:51

Tuesday, Aug 29, 2006 at 07:51
G'day all,

Unless, I've missed something here ..... everyone one has missed out 1 step ..... Removing the panhard rods F&R.

When I did my King Springs & Koni's the rears fell out easily, the fronts needed a fair bit of jacking, but once again, easily came out without spring compressors.

The only other point with the GU is to get rear sway bar extentions (available from ARB for about $25), otherwise the sway can hit the diff housing when you get into a bit of twisting stuff. The front one is fine.

I fitted King Springs (HD front, EHD rears) & Koni's, both with a nominal 50mm lift. On final measurement I got 65mm lift on the front and 62mm on the rear, so don't forget to measure before and after figures (measure from the hub centre of the axle to bottom of the guard, or plastic flair). If things aren't quite right, this will pick it up.

Hope this helps.

Cheers
AnswerID: 191591

Follow Up By: Leroy - Wednesday, Aug 30, 2006 at 21:12

Wednesday, Aug 30, 2006 at 21:12
'Removing the panhard rods '

Bingo!! My BIL read this thread the other day and said all this advice and no one had mentioned removing the panhard!

Leroy
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FollowupID: 449787

Follow Up By: Member - JohnR (Vic)&Moses - Wednesday, Aug 30, 2006 at 22:10

Wednesday, Aug 30, 2006 at 22:10
wasn't done front or rear with mine
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FollowupID: 449797

Reply By: Member - Glenn D (NSW) - Wednesday, Aug 30, 2006 at 17:54

Wednesday, Aug 30, 2006 at 17:54
There was a post a while ago about moving the brake proportioing valve up by the same height as your lift , I havent done this yet.

Glenn
AnswerID: 191859

Reply By: Member - Andrew W (SA) - Wednesday, Aug 30, 2006 at 17:55

Wednesday, Aug 30, 2006 at 17:55
One other thought after reading PG's comments - don't forget, once everything is together again to properly test the travel and be sure nothing is fowling, that the whole thing sits flat and isn't off to one side or other seriously, and to check all your nuts again after a few hundred k.

AnswerID: 191860

Follow Up By: Member - JohnR (Vic)&Moses - Wednesday, Aug 30, 2006 at 22:11

Wednesday, Aug 30, 2006 at 22:11
relevant comments Andrew, but don't forget the brake balance adjustment.
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FollowupID: 449798

Reply By: Member - JohnR (Vic)&Moses - Wednesday, Aug 30, 2006 at 22:13

Wednesday, Aug 30, 2006 at 22:13
The manual actually tells you also about how to adjust the rear brake balance. I know having adjusted mine it brakes better than before it was done where it was too front strong. You need rear braking too, to be effective.
AnswerID: 191914

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