Need to Increase Load Capacity

[Ventusa]

Hi, New to this whole concept!
Have an 1991 Hardbody 2.4 diesel.
I want to increase the load capacity? Have sourced new springs to take to 1.8 ton capacity. Do I need to change diff?
What else do I need to watch out for/change?

[boneout]

Well a different diff with bigger gears will give you better torque but I dont understand if you are trying to keep it from lowering under wieght or just move bigger loads. If u just want to do suspension or if u want it to go up hill quicker while hauling. If you just want suspension shocks and springs should do it along with some brushings but for going up hill you might want to look into a bigger lsd so both wheels will get power , if they dont already. But when hauling loads the main thing that goes wronge r the yokes in the drive shaft and a one piece drive would fix that. It wont gain you power but reliablity goes up and wieght might go down.

[Ventusa]

I am a farmer and brought for functionality. Its a flat bed. I use for transporting lugs of oranges. Need to put heavier loads for financial viability of farming. Fuel costs a killer on 1 ton. Currently if load a ton it bottoms out.

[Bubba1]

I am a farmer and brought for functionality. Its a flat bed. I use for transporting lugs of oranges. Need to put heavier loads for financial viability of farming. Fuel costs a killer on 1 ton. Currently if load a ton it bottoms out.

Personally I would advise going with a used truck already designed at the factory to handle that kinda weight, as it's safer, legal, and will probably not struggle as much as you overloading an under-rated truck. The mpg while loaded will also drop more on the small truck reducing its advantage. But I suppose there are few things you could do to improve the ride with a heavier load, like heavier rated tires, a stronger suspension both front and rear, upgrading the brakes (more laden weight means more stopping power required), changing the rear axle/diffferential to something stronger. But regardless what you do, recognize you will not change the GVWR. So if you are hauling above GVWR on a public road and have an accident or get stopped at a weigh station, you potentially open yourself up for other problems.

[Ventusa]

Appreciate the honesty. I do have a bigger truck for the big loading 6-8 tons however have orders for 1.5 - 1.8 tons which is not viable (financially) for such loads. Will have to start sourcing necessary spares for upgrade!