I currently have a 3.3 open diff on my car and wanted to switch pumpkins to a 3.5 open diff. I was able to source a pretty cheap one but it doesn't come with axle stubs.

I can't use the stub axles from my car, can I? Both pumpkins are from the same year (2003). Aside from the pumpkin do I need to buy anything extra to just do the swap?

 

I went from a 3.3 to a 3.5 in my Z and did not have to do anything more than unbolt mine and bolt the 3.5 in its place. However, I do have the VSLD and so did the guy I swapped with.

 

I'm 95% sure you can use your existing axle stubs. I think the ones from a base won't work with the VLSD pumpkin because of the differential...not the gear.

Man, I just installed my used VLSD yesterday and have my 3.5 open with axle stubs laying around...damn!

 

What car comes with a 3.3 open diff? All 5ATs with the 3.3 have VLSD.

 

+1.. Unless some G35 model had it?

 

^^ I guess I've never noticed a base AT before. My info is solely going on the fact that the OP said he has a 3.3 open. He should clear this up before doing anything.

 

Check your PM.

 

Oh wait, which G35 5ATs have an open diff?

*Johnny Carson voice* "I did not know that".

 

Sorry, I should have stated I have a 03 G35 Sedan 5AT (non-sport). I can't recall what other G models ran open diff stock though. The reason I went with another open diff was because I was planning to get the Quaife after a couple of other mods.

Thanks for the replies! I'm just gonna go ahead and pull the trigger.

 

Open diff to open diff, you should be ok with the axle stubs. Its between open diff and VLSD the axle stubs are different. They're equal length on the open diff, but not with the VLSD.

 

Does changing the rear end gears like this affect the cruise control?

I know that sounds crazy, but someone told me that the G and Z compare the wheel speed with transmission speed and if the difference is greater than 7%, it stops Cruise Control.

Have any of you that changed your rear end gears tried your cruise control?

 

Can't you just gut the thing?

I have a 05' 350z base...

I changed the ring/pin and dropped in the Quaife...

And why does everyone go higher?????? If you're running 400+ HP wouldn't you want to stay in gear longer to USE the power and not shift every .244 seconds?

spdkils

 

mine works fine

 

Yeah im definitely trying to swap w/ an AT guy for his 3.3 cuz my traction sucks. And i would get to use more of my power as stated above. Hell, its a free mod if i find someone that wants to upgrade to a 3.5. Just trade straight up...lol

 

Thanks, Matt...

See you Sunday...