four people can fit in a 240sx fastback cause there are only 4 seatbelts
it will fit but you need to modify the mounts.
Yes, late model bumpers will fit on 89-90 240sx
no, they will not fit. they are 2 different body styles
WILL A 240SX COMPUTER BOX FIT IN A KA24E HARDBODY
Absolutely.
Most definitly, been done many times.
yes it will fit
no different door the 93 will fit small on the 95
Yes they will, no modification needed.
No it will not, they are 2 different designs.
Yes the two transmissions are interchangeable.
no it will not. To fit 97-98 headlights onto a 95-96 240sx you will need these 97-98 240sx parts: headlights hood front fenders front bumper front grill maybe the front bumper support