Majority of tear down is done, next is clean up and sort then start fabrication on the body

so im doing one of those generic 2jz swap and i figured i want a manual and the 350z with a adapter bellhousing works so with looking at 500hp whats my options for the rear end? im making a whole parts list and looking for more info as i havent figured out if i need to do the rear end or not.

I havw a 1982 Datsun 280zx 3spd auto with the L28e 2 seater coupe. Does the automatic and the manual have the same driveshaft length? Im swapping the auto for the '77 280z 4spd manual.

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The rear throttle on my 1971 Datsun 240Z seems to be sitting lower than the front one. I noticed that the front one is sitting inside of the u-shaped bracket but the rear one is not and the screw can't even screw down far enough to touch it. How would I remedy this if it's incorrect?