I have a 2007 G35 6MT coupe. Planning on getting quaife and 4.08 fd along with all new seals and bearings. Car only has 20k on it, so figure I should pull original pumpkin and leave it as is- good for a spare or in case I want to go FI and want original gearing back. So looking to buy a used pumpkin to rebuild with the new parts. I know the quaife is specific to whether diff had oem vlsd or not, but what about the rest as far as compatibility with my car? Does the pumpkin have to be from a manual? A manual six speed? A coupe, any g35, 350z's? 2003-2007? Thanks for any info.

 

You could use either as long as you have the stub axles. However I would stick with the one from a manual trans. BTW if u decide to sell your diff I would definitely be interested.

 

The main difference between the pumpkins, other than VLSD/open diff is the gearing. On a 350z, automatics are 3.3, manuals are 3.5. I believe it varies for the G35 though.

 

The drive shaft flange on the manual is different from the auto. G37 and 370z manual vlsd pumpkins with 3.69 fds also works.