Front Drive Shaft Update

[HereinDaRockies]

The issue behind the CV boot failure many are experiencing failure with is behind the weird angle from factory. So, would you recommend that even without a lift we should correct the angle? I have recently come accross Dobinsons website and found some goodies for the grendaier, like castor kits which are made for the grenadier with part number WA51-639K, although it is only recommended for 2inch lifts or more. Stock height CV angle looks weird on the grenadier and causing the non return to center steering I suppose. Has anyone tried them before?

don't mess with stock. Ineos is keen on denying warranty claim.

If it fails during warranty as unmodified, they will cover it.

 

[GN4HIR]

or we'll all be at war....

Greenland again?

 

[Commodore]

The issue behind the CV boot failure many are experiencing failure with is behind the weird angle from factory. So, would you recommend that even without a lift we should correct the angle? I have recently come accross Dobinsons website and found some goodies for the grendaier, like castor kits which are made for the grenadier with part number WA51-639K, although it is only recommended for 2inch lifts or more. Stock height CV angle looks weird on the grenadier and causing the non return to center steering I suppose. Has anyone tried them before?

These are for adding more castor on lifted trucks. Adding more caster will point the pinion down towards the ground more. This is going to make the CV angles even worse. If anything you are going to want to reduce castor at the expense of handling to protect the CV.

 

[Dokatd]

These are for adding more castor on lifted trucks. Adding more caster will point the pinion down towards the ground more. This is going to make the CV angles even worse. If anything you are going to want to reduce castor at the expense of handling to protect the CV.

Interesting, Caster automatically increases on the Grenadier when it's lifted due to suspension geometry. This is opposite of say a Land Rover with radius arms.

 

[Commodore]

Interesting, Caster automatically increases on the Grenadier when it's lifted due to suspension geometry. This is opposite of say a Land Rover with radius arms.

Then maybe I’m wrong. Figured it was like everything else and you lost caster as you lifted it.

You are saying the pinion rotes up as the axle drops?

 

[Dokatd]

Then maybe I’m wrong. Figured it was like everything else and you lost caster as you lifted it.

You are saying the pinion rotes up as the axle drops?

The Grenadier is more or less a symmetrical 4link. The pinion mostly stays neutral through the travel envelope of the shocks. So lifting doesn't change much.

The adjustable arms are a great idea for most trucks and they certainly may add some strength to the Grenadiers setup but their adjustability is not really advantageous to the Grenadier.

 

[ShaleRenadier]

don't mess with stock. Ineos is keen on denying warranty claim.

If it fails during warranty as unmodified, they will cover it.

I finally decided to add lift, as I found that many places where I go have soft sand, and I get caught dragging the rear skid and get stuck spinning the wheels. So I might consider Dobinsons over other brands.

 

[pmatusov]

You are saying the pinion rotates up as the axle drops?

... down or not at all.
If the top links are shorter than bottom, it'll go down. Just like the pinion on Land Rover rear axles with lift.

 

[Dokatd]

... down or not at all.
If the top links are shorter than bottom, it'll go down. Just like the pinion on Land Rover rear axles with lift.

Yes, and exactly opposite of the front axle on a Rover.

 

[Commodore]

... down or not at all.
If the top links are shorter than bottom, it'll go down. Just like the pinion on Land Rover rear axles with lift.

Just to be clear… the as the front axle drops (lift or environment) the pinion rotates down and more caster is added? Hell, that just makes a bad situation worse!

 

[Dokatd]

Just to be clear… the as the front axle drops (lift or environment) the pinion rotates down and more caster is added? Hell, that just makes a bad situation worse!

That is correct. But it's not a huge change. But if you are running longer than factory shocks then things start to get nasty due to the relatively short arms.

 

[pmatusov]

Just to be clear… the as the front axle drops (lift or environment) the pinion rotates down and more caster is added? Hell, that just makes a bad situation worse!

Correct, but not by much.