What is the max weight a caravan a mux can towmy caravan is 2950kg loaded combination 5500 ball weight 190 is it to heavy

you should be fine with the standard genuine Isuzu tow bar. The rear of the vehicle may be down a bit when fully loaded depending on weight of pop top. weight distribution in pop top is the key. You can fit heavy duty shockers (GAS) & air bags to rear suspension if needed for light vans. They go inside the rear spring coils. The Hayman Reece & sway bars will raise the rear & take weight off of the tow ball but this has not been tested by Isuzu & warranted. Sway bar hitch does not fit on the genuine Isuzu tow bar also. The best thing would be to talk to an Isuzu Dealer such as North East Isuzu Ute at Burton, Adelaide, South Australia to work out your best needs.

The answer is all down to three things.
-What the fully loaded weight of the caravan is.
-What the maximum towing capacity of the Suzuki is.
-What the maximum ball weight is.
Some websites quote the 2006-2008 Suzuki model as able to tow 2 metric tonnes, (4409lbs) with a maximum ball weight of 75kg.
There should be a compliance data plate on the caravan to give you the weight figures.
hope this helps

carpoint.com.au suggests a tow limit of 1700 kgs with a max ball weight of 170 kg
if it is a 2.2 L diesel it is less than a 3.2 L petrol which is 2000 kgs
in your configuration you will need anti-sway bars or load levelers to get the ball weight down to the 170 kgs
then if you load the van for touring it will be well over the specs for the vehicle
the towing capacity should be on the plate inside a front door pillar along with tyre sizes and pressures

provided that the caravan is not over 3 tons and is fitted with electric brakes there will not be a problem
there is a load limit on the tow ball of around 150 kgs but if you use stabilizer bars ( which you should be using) , that makes it legal as the lift provided when you adjust the bars takes the load off the ball and makes the van more stable on the road
there will be a decal on one of the front door openings with the max towing load allowed

have to know the maker of vehicle

this information is in the glove box owners book

light weight or heavy duty towbar
will be on tag on tow bar fitted to vehicle

rarely see anything over 1800 kg at tow ball

you will have two tow weights capacities

unbreaked trailer and braked trailer

most tow bar specifications state 300-400 kgs is the maximum weight allowed ( best if the toyota is a long wheel base )
if you have something heavy on the bar you should be using load lever stabilizer bars from the bar to the "A" frame of the towed unit
these effectively reduce the weight on the ball by transferring the load to the vans wheels and the toyota front wheels
they reduce sway from uneven roads and passing trucks, improve driving stability on the toyota and reduce the load on the toyota drive tires
you measure the tow ball weight by lifting on the ball coupling of the van
best talk with bar specialist fitting shops and retailers that sell van accessories
don't forget you are legally limited by the weight you can tow by the vehicle towing specifications and for most late vehicle that tops out at 3000kgs --early vehicles it is less than 2000kgs

A question often ask and much disregarded
although the tow bar weight is within limits
the load distribution bars ( torque bars -stabilizer bars --sway bars etc) not only help distribute the load but act in such a way as to stop the trailer /caravan for developing the sway that tends to make the driver loose control at speed
they also , when properly adjusted, keep the ride height of the towing vehicle level and that improves stability
remember that although the bar weight is 175 kgs that amounts to a load of 525kgs over the rear axle or extra 525 kgs on the rear tires ( mass multiplied by distance from drive axle or rear wheels assuming the distance from the axle/tires to the tow ball is i meter---heavier if the bar is further back from the tires )
to use the distribution bars lifts that weight off the rear axle and places more of the load on the trailer wheels
As a result the car / trailer combination is much safer to operate than without the bars

I can calculate it with spreadsheet I made, call myself tyre-pressure specialist nowadays.
Depends on tyres maximum load and Pressure needed for that ( AT pressure 6pr 55psi/3.8 bar, 8pr 65psi/4.5bar or 69/70psi/4.75/4.8bar). and maximum speed of tyre given as letter mostly N to R for caravans.

Then from Caravan MPVW ( max permissable Vehicle Weight).
Or better real weight ( overloading is more rule then exeption and unequall load is possible.

But normal car tyres or XL/reinforced/Extraload are sometimes OK if they have enaugh maximum load for MPVW.
Will try to make picture of example.

less than 1000 pounds.