Q45 lsd swap q's - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

thenooblet · 06-14-2010, 11:53 AM

im wanting to swap my diff in my '95 s14 for a Q45 diff. i want the lower gear ratio tht is in the Q45's. i was trying to find out if the Q45 diff. is a straight swap with my non-abs s14 diff. is there any modifications at all when swapping for the q45?

240Zfunahollic · 06-14-2010, 10:57 PM

This is from a for sale thread i came across a while back. I wouldn't run that with a ka/sr/ca/rb though. The ratio would SLOW you down, but increase gas mileage and top speed.
1992 Q45 Differential 3.54:1 Ratio
1992 Q45 LH Axle
1994 Z32TT LH Axle
1992 Q45 5-lug Hubs
All Axle nuts/bolts/washers/etc.

This is everything you need to bolt in this R200 with the larger, stonger TT style axles in your 5-lug 240SX.

shade · 06-16-2010, 12:35 PM

'97-'01 Q45 VLSDs are what your looking for. You just need J30 axles to make it work.

Won't even bother with the earlier Q45s unless you want to change out your hubs as well.

s15lover · 07-16-2010, 08:23 AM

Quote:

Originally Posted by thenooblet

im wanting to swap my diff in my '95 s14 for a Q45 diff. i want the lower gear ratio tht is in the Q45's. i was trying to find out if the Q45 diff. is a straight swap with my non-abs s14 diff. is there any modifications at all when swapping for the q45?

got a full swap btw with the driver's side axle and hubs...you can source the tt axle on car-part.com they run 125...txt me 865-604-9443 if you're interested.

crewchief05 · 11-07-2013, 07:21 PM

sorry to open this back up. I just need some clarification.

I plan on using the z32tt/q45 axles and q45 diff.

My question is will that fit into the stock s14 knuckles(uprights)? or do i have to use the TT or q45 knuckles. I know without using the axles they are to short or long regardless. But again if I am using the axles and hubs will they fit into the stock s14 knuckles?

No one ever mentioned this or asked this question. i searched.

crewchief05 · 11-07-2013, 07:23 PM

i think the answer is use q45 hubs? or can i use TT hubs?

Will these fit in the stock s14 knuckles/uprights?

JD504 · 11-07-2013, 08:12 PM

What do I need to do to have the 97 q45 diff on my s13 hatch looking at one for sale rite now just need to know requirements before I purchase it

turbob16ef · 11-08-2013, 06:43 PM

If I recall right, the older (pre-97), you must use the tt/q45 axles along with z32/q45 hubs.
The 97+ you can use j30 axles, which can fit the stock s-chasis hubs.

My set up consist of 97 diff
95 axles flanges
Z32 tt driver axle
Q45 driver axle
Q45 hubs.

You must also redrill your driveshaft flange.

turbob16ef · 11-08-2013, 06:45 PM

But I could be wrong. There might be other combos that work.

The Dude · 11-08-2013, 06:50 PM

KA24DEvelopment.com :: VLSD Swap Information

/thread

crewchief05 · 11-22-2013, 09:58 PM

just did the q45 swap. all bolted up. pretty simple.

06-14-2010, 11:53 AM	#1
thenooblet Zilvia Addict Join Date: Mar 2009 Location: Texas Age: 29 Posts: 737 Trader Rating: (5) Feedback Score: 5 reviews	Q45 lsd swap q's im wanting to swap my diff in my '95 s14 for a Q45 diff. i want the lower gear ratio tht is in the Q45's. i was trying to find out if the Q45 diff. is a straight swap with my non-abs s14 diff. is there any modifications at all when swapping for the q45?

06-14-2010, 10:57 PM	#2
240Zfunahollic Zilvia Addict Join Date: Aug 2003 Location: South Carolina Age: 37 Posts: 606 Trader Rating: (35) Feedback Score: 35 reviews	This is from a for sale thread i came across a while back. I wouldn't run that with a ka/sr/ca/rb though. The ratio would SLOW you down, but increase gas mileage and top speed. 1992 Q45 Differential 3.54:1 Ratio 1992 Q45 LH Axle 1994 Z32TT LH Axle 1992 Q45 5-lug Hubs All Axle nuts/bolts/washers/etc. This is everything you need to bolt in this R200 with the larger, stonger TT style axles in your 5-lug 240SX. __________________ Visit My Trader rating page http://zilvia.net/f/traderratings.html?u=15347

06-16-2010, 12:35 PM	#3
shade Zilvia Junkie Join Date: Mar 2008 Location: San Diego Age: 35 Posts: 509 Trader Rating: (0) Feedback Score: 0 reviews	'97-'01 Q45 VLSDs are what your looking for. You just need J30 axles to make it work. Won't even bother with the earlier Q45s unless you want to change out your hubs as well. __________________

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11-07-2013, 07:21 PM	#5
crewchief05 Zilvia Member Join Date: Sep 2013 Location: Arkansas Posts: 280 Trader Rating: (8) Feedback Score: 8 reviews	sorry to open this back up. I just need some clarification. I plan on using the z32tt/q45 axles and q45 diff. My question is will that fit into the stock s14 knuckles(uprights)? or do i have to use the TT or q45 knuckles. I know without using the axles they are to short or long regardless. But again if I am using the axles and hubs will they fit into the stock s14 knuckles? No one ever mentioned this or asked this question. i searched.

11-07-2013, 07:23 PM	#6
crewchief05 Zilvia Member Join Date: Sep 2013 Location: Arkansas Posts: 280 Trader Rating: (8) Feedback Score: 8 reviews	i think the answer is use q45 hubs? or can i use TT hubs? Will these fit in the stock s14 knuckles/uprights?

11-07-2013, 08:12 PM	#7
JD504 Leaky Injector Join Date: Apr 2011 Location: Antioch Ca Posts: 60 Trader Rating: (1) Feedback Score: 1 reviews	What do I need to do to have the 97 q45 diff on my s13 hatch looking at one for sale rite now just need to know requirements before I purchase it

11-08-2013, 06:43 PM	#8
turbob16ef Zilvia Junkie Join Date: Jan 2012 Location: S. Carolina Age: 35 Posts: 457 Trader Rating: (13) Feedback Score: 13 reviews	If I recall right, the older (pre-97), you must use the tt/q45 axles along with z32/q45 hubs. The 97+ you can use j30 axles, which can fit the stock s-chasis hubs. My set up consist of 97 diff 95 axles flanges Z32 tt driver axle Q45 driver axle Q45 hubs. You must also redrill your driveshaft flange.

11-08-2013, 06:45 PM	#9
turbob16ef Zilvia Junkie Join Date: Jan 2012 Location: S. Carolina Age: 35 Posts: 457 Trader Rating: (13) Feedback Score: 13 reviews	But I could be wrong. There might be other combos that work.

11-08-2013, 06:50 PM	#10
The Dude Zilvia Junkie Join Date: Sep 2003 Location: TN Age: 39 Posts: 357 Trader Rating: (4) Feedback Score: 4 reviews	KA24DEvelopment.com :: VLSD Swap Information /thread

11-22-2013, 09:58 PM	#11
crewchief05 Zilvia Member Join Date: Sep 2013 Location: Arkansas Posts: 280 Trader Rating: (8) Feedback Score: 8 reviews	just did the q45 swap. all bolted up. pretty simple.