Trailers

More detail about the existing system might help us give accurate advice.

Duncs

Mark

The preferred way is to remove the spring mounting points from the chassis and add some box section (50 x 25 mm or 50 x 50 section) under the chassis and re-attach the springs. This will make a much stronger finished job. Adding spacers between the axle and spring will cause a lot more stress on the springs.

PeterD

Definitely "feasible" , am having a similar dilemma myself, so interested in the replies.
As far as I understand ...and please don't quote me. From a registration perspective..... rules are a little less tight that cars per se. If you maintain the functionality ie. boat trailer remains a boat trailer and the installation is sound, from an engineering perspective (must pass rego inspection) .... no problem.
I have a HD Classic Trailer with 14" holden wheels that I would like to convert to LC 100 hubs / wheels.
If you look at it from the perspective of vehicles.... a spacer (block) that raises the suspension does not require an engineers certificate, in most cases! [insert disclaimer]).
If it is sound, mechanically /architecturally / engineeringly, you should have no problem.
I say that, because you and I obviously respect others, and the inspector will accept the request for approval as is, with respect to the above.
Luck! and keep as posted as to the out come.
Regards
Shane

If you raise your trailer by 2" will the tent still reach the ground correctly. My canvas is measured to meet the original trailer height and just makes it at a bit of a stretch since I fitted bigger tyres to match those on the car.

A few things to remember - if you're fitting 100 series wheels, your Cruiser wheels, tyres and presumably hubs will weigh quite a bit more than the little holden jobbies, and this additional weight is hanging on them there springs which by now are looking like they might not be up to the job too.

So, a heavier axle might be in order too... and by now, you could be forgiven for thinking that there is quite a bit to think about.

As someone mentioned below, most of the tents won't handle raising the top of the trailer the 4 or so inches necessary for the cruiser wheels ... and probably not even a few inches for larger tyres.

Cheers
Andrew.

Have you considered a 'leaf-over' conversion. i.e. sit the springs on top of the axles?

Aaaah, remember doing this to my FJ

snake racing sell spring lift blocks - machined alloy for less unsprung weight.

Easy to do, though you might need new u-bolts

Hi guys,

Further more to my initial post. The camper has a solid 45mm axle, with shocks and leaf springs mounted on top of the axle. The existing rims are 15". Have done a fair amount of work with the camper and she holds up well, however occasionally the tyres rub the wheel arch. There is only a couple of inches clearance, and due to slipper springs (I think?) the tyres rub toward the back of the wheel arch.
I have considered modifying the area at which the springs attach to the chassis, but would like to keep the camper looking as "unmodified" as possible, and the chassis has a good HDG job.
I would like to weld a solid 45mm block on top of the axle to mount the springs on (new u bolts), however am worried that the increased bending moment on the axle may stress the mounting point of the springs (top and bottom) resulting in a tendency for the axle to want to roll.
The existing tyres are a crappy brand and would like to fit AT's as I have steel braids coming out of the tyre wall - all a result of Plenty Highway corrugations,

Cheers fellas,

Mark

As Disco has suggested it might be better to fit the spacers between the spring and the trailer. It also means less change to the unsprung weight.

If the wheels are currently fowling the guard even if it is only occasionally you may need to widen the track on the trailer to overcome this, could be expensive. You would certainly have to check the offset on the new wheels to see if it caused a problem.

Duncs

Still might be easier in the end to convert the slipper springs to shackled springs.
That way you can also play with the set of the springs and the shackle plate lengths.