Does anyone know if all 2WD Nissan Differential gears have the same dimensions?
In other words, can i take the differential gears from any Nissan and install them in a G35 or 350z Differential?

I understand that Frontier gears fit our differentials [3.7, 3.9, and 4.083], but what about Pathfinder, Xterra, Sentra, and Altima? In some of their years, they have favorable FD ratios that would be great for our rides....

EXP:
Pathfinder King cab 2WD = 3.7
Pathfinder Regular cab 2WD = 3.889

Xterra XE 2.4L MT = 3.9

Sentra ['04-'05] 2.5L AT = 4.087
Sentra ['01-'02] 2.0L AT = 4.072

Altima
'00-'01 AT = 4.087
'02-'04 AT = 4.087
'98 MT = 3.895

all this info can be found here: http://www.nicoclub.com/Greg/ratios.html

So does anyone know if these gears will fit our Differential?

 

FWD differential is completely different than RWD differential which built inside the transmission and the FD usually are smaller. So I doubt they will fit at all.

 

Thats because the frontier has a r200 diff. Just like the q45,300zx,280zx,280z,240sx, Infiniti g20.

 

pchio.... I understand what you are saying. But none of the cars i listed are 4WD.
Lemme clarify the question in the first post...

 

I would suspect that the Xterra and the Pathfinder would have the same Differential as the Frontier