hilux leaf springs

Auxillary coils, Outback Engineering, Melbourne.

not many people stock parabolics and I think they start at 4" lift kits for hilux.
which you need shocks to suit, extended brake lines, and possibly tailshaft spacers to allow for lift.

Drop shackles are no benefit for standard springs as your travel is limited to the shocks extended lengths and illegal for rego.(qoute me if I`m wrong on that anybody).

You would be better off getting a 2" lift kit which will give you a better ride and travel.
ch ch cheers

I thought the cheapest and easiest way would be to take the springs down to a local spring works and get them to reset them for you with more camber.
They might be able to supply some longer shackles too.
May not be the best though.

The 2 things that restrict your wheel travel are the bump stops on compression & the shock absorbers when fully extended. The bump stops can't be moved so really you'll need longer shocks. Hilux springs sagged at the best of times so in addition the cheapest mod would be to reset the springs & possibly add another leaf if you needed to carry more weight.
Next & probably best option is to replace all 4 springs & shocks with a set matched to your needs. This gives additional clearance, better road holding, better wheel articulation & a nice firm ride.
Extended shackles & parobolic springs will only lift the vehicle higher, in effect giving you less down travel & more compression & will not improve the total wheel travel at all.
Cheers Craig..........

Have also heard of blokes taking a few leafs out of the springs which will give greater flexibility but will reduce your loading/weight capacity. Steve M