will a NA LSD Diff fit and EF.. I know that the brake setup is different but i will change them over

Thanks

Yeah will swap, assuming the NA has the same uni flange

uni flange lol wheres that

lower control arm mount is thinner, you'll have to swap to EA-EB1 bushes on the lower control arm.
May have to run NA upper control arms, not sure on the upper arm differences between EA/EF.
NA diff will be a 2pin 25spline LSD, with no ABS.
So you'll lose ABS if you have it, cause I don't think there are any 25 spline axles with the tone rings on them.
Tailshaft to diff flange is different, EAs use the type I can't remember the name of.
Have to get the part of an EA tailshaft fitted to your tailshaft. Or run an EA tailshaft.

Massive step backwards, unless you have a guarantee it's been changed to a 4pin 28 spline centre, even the centre is worthless IMO.

Another thing to consider is the gear ratios. Early NA (3 speed autos) would have a 2.77:1 LSD which would suck, later ones (4 speed) were 3.23:1 IIRC.

I would just find an EF diff, much easier.