how much work is required to fit that diff.... and whats it worth?

are the bolt on type spacers illigal

I got the 25mm bolt on spacers.
Not sure on legalities, but have heard different veiws.
I'll let you know if i get done with them on. I had them on hilux for about 8months with 18x8.5" and 18xx9.5" wheels before i sold it.
Never had a prob with them, only retention after about 1000kms.

can you get a before and after pic of your car?

for miks diff you would just have to weld the datsun diff mounts on....piss easy
and get a tailshaft made

if i were you id get different wheels though, with some huge dish

from memory (or lack there of...)

you cannot increase rim width by more than 50mm, but i dont think there is any laws increasing track width...

its legal until you get caught, and even if you get caught, cops are more worried about your engine and the speed you were doing than the track width of your car.

buy some new rims with an extra 15mm offset.

a mate of mine has a set of 17'' rims on his 180sx im not sure on the specs on them but i did ask... they look to have a huge offset as the car is widebodyied and they are flush with the guards, they are a dipdish too but i dont no if 17's will fit and he wants 2 grand for em..... not sure??

haha no
you want some deep dish 14s or 15s
try datnet, there is a set forsale on there....they are also in the classifieds on here about a million pages back

here is what it would look like with spacers

front:










rear:

.....

I race with 1 inch spacers front and rear. I wouldnt say dodgey at all when set up right.