Suspension lift....shudder

[ag9111]

The spacer does reduce shudder as it takes a lot of stress of the centre bearing. A 2" lift moves the inner race of the centre bearing significantly towards the rear of the vehicle. As you unbolt the rear flange you can see the inner race moving towards the front of the vehicle.
I believe that 2" is to thick anyway, it should be about 1 1/2" to align the inner and outer races properly

[viking shippy]

Guys buy your lift kit
Enjoy your truck..... hang on ill type that again enjoy your TRUCK
fully loaded my ute weighs 3t....it's no ss or wrx or evo...
Some of you expect it to behave like a car......stupid of journalists and manufacturers to say it has car like handling......I fave a lift and sway bars mine still doesn't preform like a car...it's a 4x4truck/ute...
I have put in a spacer .flipped the centre bearing,and shimmed up the gear box ...
And honestly it's hardly noticeable....the only time I do is when I have an empty tray...I assure you it's not...a big deal ....realy .....it's ever so slight when you drop the clutch and get rolling in first...it runs parallel with the notchy gear change,and the time a diesel to takes its time returning to idle...the squeaky leafs,the rattle in steering tube to name just a few....the small amount of shudder you get after these mods is no big deal.....you do get used to it...

[ag9111]

Mine still pisses me off after 5 years. Don't believe him.
I have done bearing, spacer and gearbox. Having a another bearing modded as we speak

[NowForThe5th]

There are two separate problems, as I see it.

First is that by raising the height you take the whole driveline out of line and create an excessive angle at the universal joint behind the centre bearing, like this:



This assumes that your rear axle has been rotated with castor wedges, but, in fact this can actually cause more problems because the angles at each end of a shaft with universal joints should be essentially equal. Not zero, because in that situation the universal joints would not work properly, but ideally not much more than about 3 degrees.

In order to reduce the excessive angle at the joint behind the centre bearing then the obvious choice is to lower the bearing in order to bring things back into line. This is the brett05 mod. The same effect (to a lesser degree) can be achieved with less effort and expense by spacing the gearbox mounts and rotating the centre bearing.

Based on measurements taken by gowie77 in this post, a difference of around 8 degrees was measured after the lift. He reported the tailshaft spacer as having minimal effect "maybe 1 degree". Flipping the centre bearing accounted for about 4 degrees of the difference and spacing the gearbox another 2 degrees. At that point he reported shudder was minimal. Relocating the centre bearing would likely have taken up the same difference without having to space the gearbox mounts (which is a better situation since it doesn't create stress on other mounts in the engine/gearbox/transfer case combination). My own experience pretty much mirrored this.

The second problem is that the Triton rear driveshaft is too short. It works okay with standard suspension but has no capacity beyond this and can limit droop when a raised suspension is fitted. The driveshaft spacer can solve this problem by essentially lengthening the driveshaft but a longer driveshaft does not change the angles involved - just the stress on the joints at either end. In fact, a spacer that was too big would actually push the centre joint up further away from the optimal angle, making the situation worse.

[viking shippy]

Mine still pisses me off after 5 years. Don't believe him.
I have done bearing, spacer and gearbox. Having a another bearing modded as we speak

Bah ha ha your just a fussy bugger lol

[ag9111]

Mine still pisses me off after 5 years. Don't believe him.
I have done bearing, spacer and gearbox. Having a another bearing modded as we speak

Bah ha ha your just a fussy bugger lol

Not really.
I do a lot of km's in this car as I also use it for work. Sometimes 1000km in a week, for a couple of weeks.
I am just intolerant of things that annoy me.
Squeaks
Rattles
vibrations
Shudders
noisy tyres
people
I'm turning into the cranky old guy in the balcony on the muppets

[NowForThe5th]

I'm turning into the cranky old guy in the balcony on the muppets

Finally coming to join me, eh Garth?

[ag9111]

I'm turning into the cranky old guy in the balcony on the muppets

Finally coming to join me, eh Garth?

Yeah Chris, move over.

Where is Snowy? He should be up here somewhere as well.

[Tolonggezzz]

Gents,

thank you for the good flow of advices and insights. appreciate your time and effort in explaining lift and shudder equation. now its time to put the lift in the next week or so and see how it goes.

tolonggezzz

[brodical]

What are the tail shaft spacers worth on there own and where ya get em from??

[NowForThe5th]

http://www.newtriton.net/phpbb/viewtopic.php?f=37&t=6374

[Bigbirdalx]

What are the tail shaft spacers worth on there own and where ya get em from??

100-150$
Ultimate sus or dobinsons sus

[viking shippy]

Mine still pisses me off after 5 years. Don't believe him.
I have done bearing, spacer and gearbox. Having a another bearing modded as we speak

Bah ha ha your just a fussy bugger lol

Not really.
I do a lot of km's in this car as I also use it for work. Sometimes 1000km in a week, for a couple of weeks.
I am just intolerant of things that annoy me.
Squeaks
Rattles
vibrations
Shudders
noisy tyres
people
I'm turning into the cranky old guy in the balcony on the muppets

I drive bout half that a week my trucks my workshop..
I find some aca daca cures annoying vibrations and squeaks...temporarily...
Also cures the people thing cause I carnt hear em....soon I'll be def...

[Monkeyz]

Okay here goes, I scratched me head, drank a beer, googled some adult entertainment then realized all I had to do was pick up the phone....

According to a knowledgeable guy at Ultimate (damn i forgot his name, its at work on the note pad)

if you have the Easy select then you will most likely get the shudder BUT Ultimate have been busy and apparently have a solution about to be released to fix this issue....YAY!

if you have the super select then you should not have any issues....so YAY!

Mojo...

OH and I got a quote for a suspension kit......$1700 so YAY!

[mattz]

You can't go wrong with the service from ultimate........as you found out today on the phone.

I'm another one who found that the tail shaft spacer made a massive difference to the shudder.
I hardly notice it......and no one else does either.

I'll be interested to see what they have come up with.
That's the beauty of ultimate........they are always developing new things.

[Monkeyz]

Best bit of today's conversation was the distinct lack of hard sell, the advice was get all the heavy items fitted to the truck then have the suspension done.....I'm sold!. By giving good honest advice Ultimate will have another customer early next year once all the other work is done.

Mojo

[brodical]

Good to get good service for a change ey....good one mate..

[salt36]

^^ Mate that is the reason so many of us go with the Ultimate suspension.

Any issues after fitment is also met with the same generous service, hard to find these days

I even convinced my work to buy Ultimate for the work Triton I drive

[NowForThe5th]

Good start to a good result and you saved some money, too.

I put Ultimate on the Paj and went with their advice again after a great run with the Triton. Still very new but I reckon they're better than the Bilsteins, and normally that would be a very big call.

[Tolonggezzz]

gents,

who can fit Ultimate suspension here in Perth/rockingham area? any recommendations?

tolonggezzz

[Cowboy Dave]

I'm pretty sure that's been asked before somewhere. Easiest way is to just ask Ultimate, they can often tell you who is good etc.

[Bigbirdalx]

At the end of the day its a standard job any mech u trust coukd do.
I did mine with some curseing n long hours

[Tolonggezzz]

gents
thanks will look into some good mechs around here
tolonggezzz

[ratzy]

hey guys, i have been told and read on here that to get rid of the famous ML shudder that you can rotate your centre bearing?? is there a DIY on here for it?? i have already put the tailshaft spacer in and its still there

thanks
Ratzy

[Greedy]

hey guys, i have been told and read on here that to get rid of the famous ML shudder that you can rotate your centre bearing?? is there a DIY on here for it?? i have already put the tailshaft spacer in and its still there

thanks
Ratzy

There is one somewhere but I'm too lazy to find it. 14mm spanner (ratchet optional but helpful) is all you need. Just take the 2 nuts off then lift the bearing up and slightly back. Spin the cradle so it is above the shaft then replace on the towers. Do up the nuts.