I dont tour as such in 4x4's ...... time factor more than enything else.
But ......
I do particapate in charity bashes, you know the thing, driving a 2wd car to places that 99% of australians will never see let alone know of its existance ! ..... and I've been lucky to see most of these places from the comfort of a 2wd car..... ok so its been extensivly modded to do the job
Things we learnt in the early days was about vehicle setup more than preperation belive it or not......
If its not setup the right way it will fail and usually your not prepared for that failure. With the bashcars we know for a FACT that roof racks are a major issue and the std supercheap/supermarket/autobarn/etc etc racks wont last the distance....... if by some freakish chance they do its probably more likely that the gutters on ya car have gone west instead !
Usually its an overloading problem that causes the failure, in the fleet of bashcars on the last trip (44 cars ) around 50% had roof racks in which they placed 2 spare wheels & a 20lit jerrycan of fuel......
then of course there's always room up there for a spare slab ( or 3 ) + a swag that wont fit in the boot cause we packed the boot wrong in our hungover state this morning + that bit of gear that another competitor left behind........ its the jerry can that usually brakes the camels back tho but we still pile the goods up there cause theres room.
So .......
Ive seen 1/2" X 2" engine bolts through the failed connections plates and then through the actual roof to hold up the racks.....
Ive seen racks welded onto both the roof and the gutters.....
I've seen countless miles of 100mph tape holding whats left of the rack in place till it can be welded onto the car.....
I've seen heaps of other competitors carrying extra gear from someone elses car after the racks gone awol......
Then ........
there's the broken back window after the rack broke and let the jerrycan fall through the glass......
there's "Oh shyte....... the spares are gone ( usually around 200K's back ) & only noticed when ya get a flat tyre
& my favourite........
the 2 boughs off of a gum tree holding up the roof on an early holden stationwagon ..... yep they collapsed the whole roof !!!, so they then emptied the roof rack, lifted the roof back up to where its sposed to be, cust some tree down for a couple of solid lengths of wood that fitted between the floorpan & the roof.... add some fencing wire and hey presto its time to reload the roof rack again !!!!
Now......
you'll be alright with a roof rack PROVIDED you do some work to it BEFORE you leave. What usually fails is the plates that fit between the gutter and the actual cross bars, they simply are NOT strong enough for anything heavier than a pair of skis, a surfboard or maybe a 3 metre length of timber to fix the front gate with on the w/end.... after all thats
all that they are designed to do !
By.......
increasing the amount of connection area or "foot hold" that the rack has
to the gutter will allow it to carry a slightly heavier load such as a spare wheel or 2 .... IE make some new plates atleast 12" long to fit in the gutters...... double the number of lockdown bolts per plate for example 2 lockdown bolts will increase the binding area dramaticaly.
add extra cross bars too seeing you now have bigger connection plates, this will distribute the load better
& ......
dont forget that the rack also move sideways as well as back n forth so additional braces to triangulate the connection plates to the cross bars, this will add even more strength so that you can comfortably carry 2 spares & the jerrycan of fuel up there
and on tour ......
Check the lockdown bolts everytime you hail for a piddle break...... 2 mins with a spanner will save hours of grief in the middle of no-where.
been here
done this
Kingy