How long to change both cv's?

[solarman216]

Originally Posted by rustic

Which CVs are you changing, the outer ones I guess, or the inboard ones?
Why do you think they need changing?

On the earlier trucks, they rarely wear out as they don't rotate in 2 wheel drive. (auto hubs fitted). But the later ones run all the time...
I doubt mine have done more than 500 miles in nearly 20 years.

Point of note here Rustic my friend, the outer is constant velocity the inner is not, Rick

[AlexD333]

Originally Posted by solarman216

Point of note here Rustic my friend, the outer is constant velocity the inner is not, Rick

So rustic might have no cv's left after the 20 years of abuse?

Just yanking ya chain rustic

[elty001]

I've got a pair of spare drive shafts somewhere in the shed that I have kept from the one I broke for spares should I ever need them.

[Barrbeast]

Originally Posted by AlexD333

So rustic might have no cv's left after the 20 years of abuse?

Not quite Alex mate - a cv is a specific type of joint used on a driveshaft which allows the driveshaft to stay at a constant velocity (that's the cv part) no matter how steep an angle the joint is at. The universal joints used in the propshafts on the Trols and the Terranos are MUCH simpler but have a jerkier motion the greater the angle the joint is put under and so are no use at the end of the driveshafts on powered front wheels. I would guess Rick will be meaning that the inner joint is just a standard uj as it won't have to perform at as steep angles as the cv's.

Like the Terranos, the Trols use cv's at the end of the front drive shafts too but ours are protected within the axle swivel joint so we don't have to worry about split gaiters

[AlexD333]

Originally Posted by Barrbeast

Not quite Alex mate - a cv is a specific type of joint used on a driveshaft which allows the driveshaft to stay at a constant velocity (that's the cv part) no matter how steep an angle the joint is at. The universal joints used in the propshafts on the Trols and the Terranos are MUCH simpler but have a jerkier motion the greater the angle the joint is put under and so are no use at the end of the driveshafts on powered front wheels. I would guess Rick will be meaning that the inner joint is just a standard uj as it won't have to perform at as steep angles as the cv's.

Like the Terranos, the Trols use cv's at the end of the front drive shafts too but ours are protected within the axle swivel joint so we don't have to worry about split gaiters

Hold on your putting me right off trols

The old 4.2 diesel is live axle at front right?

[elty001]

A live front axle still needs a uj on it for the steering.

[Barrbeast]

Originally Posted by AlexD333

Hold on your putting me right off trols

The old 4.2 diesel is live axle at front right?

Alex, live axle's have nothing to do with it!

ALL Y61 (like mine) & Y60 (like Fez and Makeitfit's) Trols are live axled front and rear.

CV's are used to allow the driveshaft to go through the angles of steering but still transmit constant velocity and power.

If Trols didn't have CV's on the driveshaft (or even a basic UJ), how else would they allow the driveshaft to bend through the steering angles??

[elty001]

Think you might have to show him a piccy of how a front live axle works.

[Sweety]

Originally Posted by elty001

A live front axle still needs a uj on it for the steering.

Alex you've got your UJ's & CV's confused UJ's are on the prop shaft where CV joints are used on drive shafts solid front axles like on the trol have swivel joints

[Fez_uk]

Originally Posted by Sweety

Alex you've got your UJ's & CV's confused UJ's are on the prop shaft where CV joints are used on drive shafts solid front axles like on the trol have swivel joints

Swivel joint are for the outer hub has something to connect to, Still has CVs to deliver power to the wheel when turning.

Some live axles use UJs instead of CVs, Such as jeep axles.

[AlexD333]

Ok feeling a bit silly but I am lost

Before I started my current work my car experience was incredibly limited as only ever really had dealings with motorcycles

In basic what I like, is being able to lift as high as I like, and I believe the old skool trols can do that right?

[Sweety]

You can get a 4" lift kit for the T2 from Calmini but it's not cheap & have to be imported from Canada or the US hell you can get 38" tyres on a T2 but you'll have to do it the Icelandic way

[Barrbeast]

Originally Posted by AlexD333

Ok feeling a bit silly but I am lost

Before I started my current work my car experience was incredibly limited as only ever really had dealings with motorcycles

In basic what I like, is being able to lift as high as I like, and I believe the old skool trols can do that right?

Okay dude it's like this...

You can raise any vehicle you want as high as you want, however some vehicles are better set up for lifting than others. Vehicles with live axles front and rear are better for lifting than those with a live axle rear and independent front suspension. (before you go any further google/wikipedia "live axle" and "independent front suspension" so you know what that those mean!)

Trols like mine (a Y61) or Fez and Makeitfit's (Y60 or what I think you call old skool) have live axles front and rear.

Because they have solid axles it means the whole axle moves with the suspension so when you fit a susp lift you just lift the chassis relative to those axles - the axles and diffs stay at the same level and therefore the CVs or UJs in the front driveshaft stay at the same angle.

A Terrano has independent front suspension so the diff is fixed to the chassis and the two front wheels move with the suspension independently. When you put a susp lift on independent suspension it moves the front wheels further from the chassis and further from the diff so the angle on the CVs increases. Running the CVs constantly at a steep angle increases the strain on them so the higher you lift an independent front suspension vehicle the more wear you will cause on the CVs.

[AlexD333]

Originally Posted by Barrbeast

:

.

Because they have solid axles it means the whole axle moves with the suspension so when you fit a susp lift you just lift the chassis relative to those axles - the axles and diffs stay at the same level and therefore the CVs or UJs in the front driveshaft stay at the same angle.

A Terrano has independent front suspension so the diff is fixed to the chassis and the two front wheels move with the suspension independently. When you put a susp lift on independent suspension it moves the front wheels further from the chassis and further from the diff so the angle on the CVs increases. Running the CVs constantly at a steep angle increases the strain on them so the higher you lift an independent front suspension vehicle the more wear you will cause on the CVs.

Knew the first bit of the first paragraph, didn't know about the second bit (axles in the diff) and unfortunately I know about the silly terrano set up

Thanks for a wicked description , it's made it somewhat clearer, I always knew you could keep going with a trol but didn't know about the mechanics of it ect. Cheers!

[Fez_uk]

even over 2-4" susp lift on a trol will cause extra stress on the UJs on the propshaft.