when you get into the steering and suspension
USA top balljoints work
USA bushings and bumpstops all work
Check the strut rods for the legth of thread and if they have the split pin or nylock nut and buy the appropriate year US bushings
US track rod ends work
US lower ball joints don't work you need Austrlian Lowers OR you need to cut the track rod sleeves down half an inch, to cater for the different angle of balljoint levers this may induce more bump steer. it all goes together if you don't but alignment will be impossible
You will need austrlian small sector shaft pitman arm
you can probably use a USA idler
You are on a cross over year i'd expect 1 year only disk brake rotors on an aluminium hub with 4.5 inch PCD and kelsey hayse style pin slider 1 pot calipers.
but you may have 4 inch pcd and you may have left hand and right hand threaded wheel studs.
the stub axles will have the small taper for the upper joint and the small taper on the stub axle for the inner bearing
if its a 770 trim level car it will have power steering. if that box needs rebuilding the internals are the same as the US in most respects except the piston/ballnut is RHD and i don't think you can do what we do on manual setups which is to turn the ballnut round end to end to convert LHD to RHD and vice versa. but the seals and bearings all fit and a thin US power sector will fit
The brake master is a 2 year only cast iorn disk/drum master 4 bolt mount. all you can get is rebuild kits and top seals. but it won't be foreign if you have dismanted a US one of similar vintage. it all works the same.
for the rears 1968 dart with slant 6 rockauto 9 inch drums rear does the job. all you can't get is the parking brake strut. your choice if you go hook and spring or pin cup and spring shoe retainers. The back plate is unique to the borg waner axle. if you need drums aussie ebay or canada or south africa
axle is a Borg warner M75 which is a beam axle version of the IRS m76 and later beam axle M76 same center differnt halfshafts the m78 is its bigger cousin
It will have thin 25 spline axle half shafts
www.9bolt.com and
GM Individual parts and Kits for the m78 with 28 spline axle shafts
can get parts for the GM 9 bolt which is a borg waner M78 axle get the axle bearings/ seals from austrlia and the rest can come from the USA
M76 had a 7.6 inch ring gear M78 had a 7.8 inch ring gear both use the same centre, the M76 and M78 use different pinion head bearings but you can mix and match, pay attention to the fact that 25 and 28(ford 9 inch spline) spline versions exist if you need diff centre parts
moser will make custom axles for this diff in 28 spline if you want to fit a torqueline torquelock (eaton tru track) style centre look up centres for VL-VS holden commodore
or buy a 25 spline side gear and cone set for any M76 or M78 cone based sure grip centre you can find (USA camaro z28 firebird TA 82-92) (Austrlian chrylser Valaint Ford holden nissan) all used M78 or M76 or M75 diffs and the centers for 2.92:1 up to 4.11:1 are the same the only annomoly is the 2.77:1 with its offset ring gear flange to cater for its massive pinion head.
this is a seperated cone and side gear centre if it is worn just machine the ends of the cones down a few thou so they don't hit the case ends, and put shim in between cone and gear. good for another 50-75K. its a process described as sleazy, by some, but they came from the factory with shim if necessary, shim was used to get the correct spring pack tension to achieve acceptible torque biasing.
i'm a Uk owner of an austrlian chrylser who has the same problems as you...if i can help i'll do my best. i have parts book coveing 62-69 R/S series to VF series valiant (the VF was a VG with round lights and different front brakes) and factory manuals covering 71-73 cars (VH) neither is right for this car, howver they didn't change much, but if you have a google account with a google drive i car share them to you. both well out of copyrights and the company CA Ltd pty doesn't exist in any form anymore...
Dave
