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DIY 03 G35 Coupe 5AT to 07 G35S 5AT differential swap

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  #256  
Old 02-02-2012, 08:00 PM
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Originally Posted by b_moneyy
Please read the OP boss. he used a 5AT 07 g35s differential...the exact yr and model you're asking about. It has the 3.7 FD. and both automatic as well as manual differentials will fit, in the case of that particular model, it had to be modified as shown in the OP to fit. In summary, yes it will fit but it may take a LITTLE bit of work to do it.
thank you!!!! on my way to buy a differential from a 2007 g35s for my 2005 g35 6MT =)
can't wait!!!
 
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  #257  
Old 02-03-2012, 02:01 PM
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so I just read on the spec for the automatic differential on a 2007 G35s, it is only 5 speed, will it be ok with my 6 speed manual??
 
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  #258  
Old 02-03-2012, 03:37 PM
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Originally Posted by truexh
so I just read on the spec for the automatic differential on a 2007 G35s, it is only 5 speed, will it be ok with my 6 speed manual??
Shouldn't matter you can use either one. People are putting the 6mt diff in the autos due to you not having to change out your flange less work to install.

Don't know if you have to change out your flange since you are 6mt.
 
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  #259  
Old 02-03-2012, 04:34 PM
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how hard is it to do this task from your experience and how much hours? I contact a shop to do this swap and they charging $150, is that a the right cost for labor or do you guys think i should attempt the DIY?
 
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  #260  
Old 02-03-2012, 06:54 PM
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Is $350 for a 2007 g35s diff a good deal?
 
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  #261  
Old 02-03-2012, 08:20 PM
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how many miles? sure it has vlsd?
 
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  #262  
Old 02-03-2012, 09:50 PM
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50K miles yes has VLSD, i have to change the flange just as the first post in this thread, so i guess my 2005 manual is the same as 2003 AT

The 2007 diff use a different drive pinion shaft and a different flange for the propeller shaft.
 
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  #263  
Old 02-04-2012, 01:45 PM
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I paid $350 shipped for mine with the same amount of miles and I paid $175 with fluid installed. $150 to me is a good price to have it installed professionally.
 
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  #264  
Old 02-04-2012, 02:30 PM
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i wonder would a 6MT diff will be a direct swap to a 6MT diff or they change the flange due to being 3.7
 
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  #265  
Old 02-04-2012, 02:47 PM
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Originally Posted by truexh
i wonder would a 6MT diff will be a direct swap to a 6MT diff or they change the flange due to being 3.7
look under your car and compare your flange to the pics in this thread if you can.
 
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  #266  
Old 02-12-2012, 02:55 PM
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Also is there a way to have the 3.69 gearing with the 4 bolt flange and VLSD without having to cut the pinion shaft?
 
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  #267  
Old 02-13-2012, 12:28 PM
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^yes. I believe mine came off an 08/09 G37s.
 
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  #268  
Old 02-15-2012, 02:08 AM
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quick question guys....would mileage matter in buying differentials? what if the car was tracked or was formerly f.i...would that matter?
 
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  #269  
Old 02-15-2012, 06:09 AM
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Originally Posted by herrschaft
Make sure the flange on the one you buy has 4 bolt holes in the front, usually its associated with the manual transmissions. That way it will bolt up directly and no modification required. A VLSD would be better then an open diff.
Thanks for all the info. I just bought my 3.69 pumpkin. It came out of an 09 G37 MT. that had 20k miles on it. Is there a specific fluid that you used in yours?
 
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  #270  
Old 02-16-2012, 01:12 AM
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^I had the stealership replace the fluid last time and I can't remember what the specs were. Redline is supposedly a good brand. There was a discussion regarding fluids in one of these DIY diff threads but I can't dig it up when using my phone.
 
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