^Most go with the 3.5 VLSD, not sure how the car will react with a 3.7 or higher.

 

the 3.5 vlsd is for 03-06 coupe manual transmission?

 

yea, some of the early years don't have vlsd but they all have 3.5 gearing...

 

Has anyone used the 370z differential? Its a 3.7 right?

 

Its the same diff thats on the G37. Some are 3.7, refer to the Factory Service Manual of a particular model for specific details.

 

How can one be sure they truly have a 3.5 or 3.7 with vlsd? It would seem really easy to rip someone off. Selling there 3.3 as a 3.7 and so on

 

Differentiating between an open or VSLD is easy if the diff is detached from the car. Simply hold one of the half-axles so it doesn't move and turn the flange. If only one of the axles move then its open, if both turn then its a VLSD. The gearing is harder to figure out. If you know exactly which car the diff came off of, then use the FSM's.

 

great theard and good information bro

 

What's up everyone! I'm about to do this mod myself from my stock 03 sedan open diff to a 08 3.7 FD VLSD. I just found this site today and I'm getting the whole "carrier assembly" for $450 with free shipping http://www.partshotlines.com/

This site was awesome because they show real time parts available. No need to wait for someone to search and send you an email. Wish me luck with my switch

 

Would I need the axles if I get a 3.7 vlsd?

 

^No

 

I'm not very knowledgeable on this subject but i got a 03 sedan 5at and i'm looking at a 3.7 rear diff. Either from a 370z or a g37. Would i be able to do a direct switch and not loose my cruise or have problems?

 

It's direct bolt on. And you won't loose your cruise control or any problems I just did my swap last week

 

be careful not to pull a pumpkin off of a 7AT, those are 3.3 diffs.

 

so what year cars can i pull a 3.7 off of?