IRS vs Solid axle airbag suspension

You can't fit IRS into a ute anyway unless you re-engineer the body anchor points.

Also suspension height is totally governed by the spring height and nothing to do with the actual suspension components fitted.

 

Can slam the IRS, but you run into a lot of problems (huge camber wear, bush/alignment/possible CV problems) because of Holden's crappy IRS design and the fact that you're making it so low.

 

Take the wheels off.

 

Really doubt it. Without adjustable trailing arms you will also start running into pinion angle issues and axle tramp problems.

 

its a bit unclear what you are actually try to achieve. You will **** the air bags if you go too low. You can probably lower it as far as the bump stops, without getting pinion angle issues. Anything much lower is going to be a **** to drive, because you will be pounded from every slight bump in the road.

 

Is this what you want ?

 

@Suspect101, I don’t really understand what you mean by “slam the diff on the ground” when you talk of solid axle. With a solid axle design, the diff is fixed into the same plane as the wheel centres and can’t be altered. So the diff ain’t movin’ in a solid axle design and it’s impossible to lay the diff on the ground. If you want the diff closer to the ground, take off the wheels as @losh1971 stated.

Depending on how much clearance is above the solid axle diff and how it is connected to the vehicle, you may be limited by how much the body could be dropped. It’s based on the clearance above the diff or the spring height (as @vs-lover sated above) and other mechanical issues.

You could do lots of engineering work around the solid axle attachment and suspension points and some body work to creat clearance if they are lacking. This would allow the vehicle to lay on the ground but you’ll never be able to lay the diff on the ground with a solid axle, never.

To me the real question is why would you want to do such butchery anyway? You’ll likely compromise the vehicle integrity and safety and it almost certainly won’t be roadworthy.

 

That makes it clearer, airbags are normally added to increase ride height in a ute when fully loaded.
What you need firstly is a big sticker on the back window with MANG, written on it and go from there.

 

https://forums.justcommodores.com.au/threads/does-an-ecotec-mang.272245/

This might be helpful.

 

and have the Coppers pull you over everytime you set foot on the road, just ask a Silvia owner that's done modifications, they'll certainly give you the good oil.

 

You are looking at it all wrong skylark. You CAN lay the diff on the ground, you just need to bring the ground up to the diff, not diff down to the ground.
OP, take your ute off roading and you surely will get the ground on your diff.

Thank you, glad I could help.

 

See its not hard to lower to the ground, glad I can help too.

 

Wow !

one very snapped axle !! That would've been fun being behind the wheel at the time when it happened ?

Must admit I've put my 2001 2.7 Hilux under more load than that and it handled it with no issues whatsoever and that's a 4 banger.

Obviously that's how the Hilux got its credibility.............Unbreakable !