Thread: Hilux inverted leaf springs

Do a bit of math on it, work out what your standard weight on the rear spring pack is and then divide by about 75 (Kg, which is about what each leaf will carry). I went from the standard 3-leaf plus overload plate to a 7-leaf plus overload on the ranger. Fixed the junk springs it shipped with and the bs ride they gave, now much more acceptable although I would not like to be in it fully empty.

I have a wellside, liner tub, 75Kg of canopy and 65Kg of ute drawer in it permanently plus probably 45Kg of tools?

Plan to upgrade the shocks at the rear and you will need to adjust the front to correct the ride height and sort the alignment most likely. With more leaves in the rear spring pack you will gain lift which will also drop the nose and this is not good for alignment. I set the new foam cell front struts up with the factory coils but with a 10mm spacer to increase the preload which gave me 20mm lift at the front which pulled everything back into correct alignment. So far no issues with driveline angles, 136,000Km and the front lower ball joints need replacing it's the only wear item so far.

I'll add to that, for 2500Kg trailer that should be 250Kg of downforce on the towball which is all back end no load sharing to the front. With a canopy of say 65Kg for a plastic type your towing load increases over empty by 315Kg - I would think that a leaf pack designed for medium load carry or 50% of max rear axle load might work? Probably a 5 or 6 leaf pack depending on who supplies it. Or maybe the modified leaf mentioned above plus one standard mid pack leaf on each side, will need new u bolts and center bolt though you won't squeeze two more leafs in with the factory bolts.