So I know the physical dimensions and bolt pattern is identical, it appears the only difference is the final gear ratio? What about the other gear ratios?

Wouldn't the difference in gear ratios cause cruse control to not function?

I cant find a used transmission for my car, and new ones go for between 2,270 and 2650. I cant rebuild my old one considering the massive damage that was done when 3rd gear exploded.

 

07 M35 trans axle ratio is 4.05 instead of your 3.82. the tooth count is off for the VSS so cruise wont probably work as a result and your speedo reads wrong.

 

The counts per mile can be corrected in HPTuners though. At least I trimmed the 2% error out of mine.

There are a few members running the LSJ trans in an LNF.