Q45 diff - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

laurentj23 · 11-26-2014, 09:21 AM

Do I have to get 96-01 diff to fit in the s14? I tried searching online about the dimensions but couldn't find anything. What's the different between 04 diff and the earlier model diff? Is the pumpkin different? Final drive ratio?

slow92 · 11-26-2014, 09:28 AM

From what I understand the pre 1996 diff will fit in your car as well. The housing is the same but the ratio is different. The pre-96 had a ratio of 3.54 and the post-96 had a ratio of 3.69. I don't know anything about the newer q45 diffs.

2muchboost · 11-26-2014, 09:49 AM

90-96: Need larger wheel hubs like the Z32TT, Z32 TT driver side axle, Q45 driver side axle. This has a 3.54 ratio.

97-01: Uses stock stock S14 vlsd equipped axles or J30. 3.69 ratio.

ixfxi · 11-26-2014, 09:53 AM

Quote:

Originally Posted by laurentj23

Do I have to get 96-01 diff to fit in the s14?

Nah, you dont have to.

Just leave it stock and your car will still work.

laurentj23 · 11-26-2014, 09:58 AM

Thanks guys.. I'm familiar with info. Still needs to know whet here 04 year diff will fit?

2muchboost · 12-10-2014, 10:09 PM

Not sure but what ratio are you trying to achieve?

laurentj23 · 12-11-2014, 08:08 AM

3.69/ 3.54 . I just need the ring and pinion. I can pick it up on the 26th or 27th. Ill be down there for vacation

5280VertDET · 12-11-2014, 08:13 AM

Swap the guts, your ring you want and call it a day.

laurentj23 · 12-11-2014, 08:17 AM

Is 04 diff guts and rings interchnagable though? I know the 91-01 does.

5280VertDET · 12-11-2014, 08:38 AM

Found this, I think the 04 use the R230, so I am incorrect.

Quote:

Originally Posted by orion::S14

They do not fit.

The Q45 uses an R230, identical to the 300ZX TURBO. It does not bolt into the S13/S14 subframe...

IIRC, the M30 uses a weird rear suspension, some trailing arm setup...and has a diff similar to an older Z31 300ZX...the internals may be R200, but the case (or the whole diff) is not a bolt in deal.

If you read this on the 240sx.org page about diffs...that page sucks, lots of errors.

I have fixed the errors, and posted all the other good info for you:

http://www.ka24development.com/vlsd.html

Hope that helps... - Brian

laurentj23 · 12-11-2014, 11:00 AM

Quote:

Originally Posted by 5280VertDET

Found this, I think the 04 use the R230, so I am incorrect.

Thats what i needed to know. Thanks.

11-26-2014, 09:21 AM	#1
laurentj23 Zilvia Junkie Join Date: Dec 2011 Location: Chattanooga,TN Age: 37 Posts: 422 Trader Rating: (1) Feedback Score: 1 reviews	Q45 diff Do I have to get 96-01 diff to fit in the s14? I tried searching online about the dimensions but couldn't find anything. What's the different between 04 diff and the earlier model diff? Is the pumpkin different? Final drive ratio? __________________ 'Born Ready!',LJ

11-26-2014, 09:28 AM	#2
slow92 Zilvia Junkie Join Date: Jun 2008 Location: NV Posts: 423 Trader Rating: (16) Feedback Score: 16 reviews	From what I understand the pre 1996 diff will fit in your car as well. The housing is the same but the ratio is different. The pre-96 had a ratio of 3.54 and the post-96 had a ratio of 3.69. I don't know anything about the newer q45 diffs. __________________ Sr22 in the works

11-26-2014, 09:58 AM	#5
laurentj23 Zilvia Junkie Join Date: Dec 2011 Location: Chattanooga,TN Age: 37 Posts: 422 Trader Rating: (1) Feedback Score: 1 reviews	Thanks guys.. I'm familiar with info. Still needs to know whet here 04 year diff will fit? __________________ 'Born Ready!',LJ

12-11-2014, 08:08 AM	#7
laurentj23 Zilvia Junkie Join Date: Dec 2011 Location: Chattanooga,TN Age: 37 Posts: 422 Trader Rating: (1) Feedback Score: 1 reviews	3.69/ 3.54 . I just need the ring and pinion. I can pick it up on the 26th or 27th. Ill be down there for vacation __________________ 'Born Ready!',LJ

12-11-2014, 08:13 AM	#8
5280VertDET Nissanaholic! Join Date: Aug 2013 Location: Denver Age: 37 Posts: 2,052 Trader Rating: (14) Feedback Score: 14 reviews	Swap the guts, your ring you want and call it a day. __________________ S13 Vert \| SR \| PE1420 \| 5-Speed \| 15x9.5 - 0 \|

11-26-2014, 09:49 AM	#3
2muchboost Nissanaholic! Join Date: Apr 2003 Location: Austin, TX Age: 37 Posts: 2,183 Trader Rating: (33) Feedback Score: 33 reviews	90-96: Need larger wheel hubs like the Z32TT, Z32 TT driver side axle, Q45 driver side axle. This has a 3.54 ratio. 97-01: Uses stock stock S14 vlsd equipped axles or J30. 3.69 ratio.

12-10-2014, 10:09 PM	#6
2muchboost Nissanaholic! Join Date: Apr 2003 Location: Austin, TX Age: 37 Posts: 2,183 Trader Rating: (33) Feedback Score: 33 reviews	Not sure but what ratio are you trying to achieve?

12-11-2014, 08:17 AM	#9
laurentj23 Zilvia Junkie Join Date: Dec 2011 Location: Chattanooga,TN Age: 37 Posts: 422 Trader Rating: (1) Feedback Score: 1 reviews	Is 04 diff guts and rings interchnagable though? I know the 91-01 does. __________________ 'Born Ready!',LJ

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