vk rear end fells wrong with trailer on

[repo]

have a vk with king springs in the ass it sits nose down normally put a car trailer on it with a commy on bored the vk sat level so did the trailer but it felt like the rear end on the vk was moving around
the vk drives and handles fine with out a trailer any ideas

[VT-565]

Are the trailer brakes working correctly?
Everything secure?
How much weight did you have on the towball?

[ari666]

can you shut the rear doors now?

[old mate]

that would have been legally overloaded wouldn't it? early commos dont have a great towing capacity. actually most dont have a great towing capacity.

[ari666]

^^^ thats it mate. the VK were not as bad as the others cos' they put that stupid reinforcing bar on the boot floor, but i still wouldnt tow a car with one. hence me asking if the rear doors still close.

[old mate]

whats the reinforcing bar look like? my vb has a towbar that i used once to tow an enclosed motorbike trailer with 2 bikes in it. early commodores aren't good tow cars.

how far did you tow this car on your trailer for mate?

[VK_3800]

The VK will never feel right with that sort of weight on it, they simply aren't designed for it. You can get a second reinforcement that goes under the fuel tank which might stop the back end from folding up like a tin can, but the suspension and weight of the car are still completely unsuited to heavy towing.

[DANNY8]

We've towed cars on trailers plenty of times with old Commodores. Didn't realise it was unsafe. Never noticed anything wrong with the cars afterwards either.

[ari666]

whats the reinforcing bar look like?

its basically a stip of metal with various bends in it on the inside of the boot (floor) in the center which runs from the diff tunnel to the rear filler panel. my camera is at work and google images is no help, so soz cant help with a pic.

[repo]

mine has got a reinforced boot floor 3 mill steal plate and front to back and the bar continuse under the tank and boltsa up near the diff as was used by the old owner for towing a caravan all up the trailer wade in at just under 2 ton with a compleat vk on it it dose sit really high in the bum
we ended up using a vh to tow the trailer it didnt like the hills back to first lol but we were towing the trailer at 80 clicks with out a prob were the vk was scary at 60 clicks we tried moving the car as far forward as poss but made no difference i used to tow a double horse trailer with my vh for years
is my rear end to stiif eg springs car was chaind down trailer brakes are working