from what i have read on a couple of my searches it that the z32 front brakes will bold right up to my 87 z31 with just changing the front brake lines so i wouldnt need the spacers i have read about using the 84-86 swap guides

also about doing the rear brakes i havent found much on doing this swap

sadly most of my searches came back for the 280zx

my sources that i found to be the most useful
Brakes on Your 300ZX
Z31 - Z32 Brake Upgrade

 

XenonZ31 Z32 Front Brake Swap

No, I haven't seen a discussion on swapping rear brakes. There may not be much difference in the rear since most of the braking action happens up front. The rears also serve as the parking brake and cable issues may be involved.

 

is the turbo hub larger than the na one this is the first time i have seen the use of the turbo hub or a mention that there is a difference

although it makes sense that the turbo would have larger brakes so if i have to use the turbo hub so i have to get a turbo spindle then also?

im surprised that az dosent have a write up for the brake swap on his site
ZBUM's New Nissan Z31 300ZX Homepage

 

bump

is there a difference in the turbo vs na spindle

 

to answer my own question i found that they have the same bearings meaning they have the same spindles

also what bearings would i use for the swap thanks