Busy weekend....
Put me best measurin head on and i reckon i have the axle assembly and that GORGEOUS Cragar all lined up
I had to 'clearance' the rear floor a little to make space for the front brackets.
I've also found the frame rails aren't symmetrical- the right one is nearly 1/2" lower than the left
I was going to just correct this by making my bracketry uneven but i can't bear to leave it like that. I've sussed out that i can cut it in places that are accessible to weld and jack it straight.
To locate the axle i've plumbed lines down to a sheet of ply pinned to the tarmac from points on the original chassis (such as the torsion bar mounts) and marked a car and an axle centreline.
I partly worked out, partly guessed at a ride height and from the amount of travel in the shocks, tyre height, etc worked out the axle height in relation to the frame rail above it.
With the axle assy raised to the right height and a centre marked on each end, i could the plumb down to my centrelines on the board to position it left/ right and fore/ aft.
Next to set was the pinion angle. (Thanks Dave, Kev & others for the info in earlier threads) As the 4-link axle plates were pre-welded, i measured the carb plate-to-motor angle (bout 3*) and transferred this to the axle front face. If it turns out the motor (which has never been in the car!) has to sit up or down from this, i should have enough adjustment on the 4-link bars or by packing the trans to correct it.
With the axle case now correct in all directions, it was just a matter of raising the front plates until the bottom bar was horizontal and the front plates vertical (this required tweaking the 4-link adjustment bars and applying a lumphammer to the floor) and in line with the axle plates.
TA-DAA!!!
O 'course now i've decided to correct my frame rails, i'll be taking the whole assembly out and starting all over again
No-one will believe you...
. 
The secret's out, then! You have a personal mechanic! 
