Raising ride height

Hi Johntoyo,
You will have the axle width as well as the spring pack ( 20 mm?) and the Tyre increase that should lift it a fair bit, is the van still under warranty and does this mod effect your insurance on your car or van ?

Its just a matter of putting your axle under the springs instead of on top
Much safer as it takes the load off of your U bolts
You will gain the thickness of the spring usually about 60mm
Insurance is ok
Warranty just advise your doing it and ive never heard a problem doing it
Its very common to do it and a relatively simple process

Thanks for your replies and suggestions.
Axles are 45mm with top mounted 50mm dia stub axles, spring pack is 45mm. Under slinging with current axle may not be possible due to stub axles. Van is just out of warranty, and I had not considered insurance issue.
I am leaning towards a new pair of straight axles over slung as now which should give 47.5mm. Would have to strip axles assembles to get axle lengths etc.

Easy option is for 15" wheels if I can find some (mags) Landcruiser 80 series 6 stud pattern.
Thanks again for your response.

By replacing the Al-Ko Over Lay axle on your Jayco with a Straight Axle you'll raise the van by around 49mm (2"). I think you'll find that is sufficient to stop you dragging the bum on driveways etc. It's a fairly common conversion.
ozjohn

Hi there. I assume you do not have a problem with an annex, if you lift the van by a few inches? I have read of people who got a shock after a lift!!

G'day John, I have raised the ride height on my caravan, a 16 foot pop-top.
I have the overlay / offset axle. What I done was rolled the axle over so the stub axle is now under the axle, giving a 100mm lift.
This not only raises the body height but also increases axle clearance.
The brakes and backing plates were swapped from side to side so that the brakes are facing the right direction.
The brackets for the shockies need to go on the opposite side of the axle as does the axle to spring blocks.
I done this over 5 years ago and have done tens of thousands of miles , some rough gravel included and no problems.
Increasing the wheel size will decrease the load carring capacity of the wheel bearings.
Another option is to go bigger wheels with a straight axle with pararell bearings, the pararell bearings will retain your load carrying capacity.
I hope this gives you some food for thought .. Cheers Pete ..

Changing wheel size would be contrary to Vin plate...Illegal??
Is inverting the axle so stubs are under rather than on top of the axle a possibility, and swapping end to end if shock brackets etc. are welded to axle?

Revering an Over Lay axle 180 degrees to become an Under Lay would never be done or even considered by any competent engineer.
It's extremely poor engineering practice as the forces alway want the axle to roll over back to an Over Lay situation.
An inspection by a competent road safety inspector would see this type of conversion put off the road.
ozjohn.

Seems to me you want to crack a walnut with a sledgehammer.

Why not just adjust the cams on the Hayman Reece head to give you no more than 4 links and problem fixed for NOTHING.

I have just gone from a van with 14 in wheels to one with 15 in and still have the HR on the same settings.
Should be able to lift it a bit if its not already on 4 links..

Just dont go any less.



Cheers