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alpalwal1
10-22-2006, 10:26 PM
I drive a lot on the freeway in my 240 and I hate the short 5th gear.... 1-4 is cool, but I really dont like being at like 3k at 67 mph.

What are the options for either longer 5th gears or differentials? I've got the 6 bolt axles and don't want to replace them if i don't have to.
!Zar!
10-22-2006, 10:30 PM
You could get a lower ratio ring gear, but that will lower your accel speeds. For that option you are spending about $500 for a ring gear.

Other than that, all you can do is deal with it.
alpalwal1
10-22-2006, 10:51 PM
how about just a different diff? any ones with longer legs that the 240 that bolt in?
wootwoot
10-22-2006, 10:56 PM
The definite easiest solution would be larger wheels/tires. The r&p is the gear part of the differential. That is what you replace, not the entire unit. Search son
R34SKYLINE
10-23-2006, 01:33 AM
94 S13
4.083
49/12
R200(v)

96 Z32 Na
4.083
49/12
R200v

94 J30
3.916
47/12
R200v

99 Q45
3.692
48/13
R200v

96 Z32 Tt
3.692
48/13
R230v

94 Q45
3.538
46/13
R200v
bardabe
10-25-2006, 08:44 PM
I'd ge tthe Q45 :)
drift freaq
10-25-2006, 08:50 PM
A Q45 pumpkin( larger driveshaft flange) will not bolt into our cars, nor a Z32TT. You would have to yank the internals and install them in your pumpkin
bardabe
10-25-2006, 10:03 PM
A Q45 pumpkin( larger driveshaft flange) will not bolt into our cars, nor a Z32TT. You would have to yank the internals and install them in your pumpkin
That's what makes it fun DO IT!
alpalwal1
10-26-2006, 12:20 AM
alrigt... so the z32 and q45 internals will fit in my diff though?
McRussellPants
10-26-2006, 12:25 AM
no.
R200 is different than R230, the numbers are ring gear diameters.
IIRC its possible get the whole 230 Rear end and axles into an S-chassis.
your car is gonna be so piss slow with a 3.6 gear though
drift freaq
10-26-2006, 12:31 AM
alrigt... so the z32 and q45 internals will fit in my diff though?
no thats not exactly what I meant to say. Basically any R200 internals including q45 , M30 ring but not the pinion, will fit. I added the fact that the Z32TT would not fit because its a R230v, its internals are larger. To tell you the truth most of this information is already available in the archives and faq section between a faq I wrote and 3 other ones.
mrmephistopheles
10-26-2006, 12:31 AM
I'm going to be getting a S15 Spec-R MT final drive. 3.69

My goal is for high MPG via low RPM cruising.
It will not be much fun to fart around in anymore.



Looks a little something like this:
http://img183.auctions.yahoo.co.jp/users/8/4/2/6/youcin124-img600x450-1159971131dsc00307.jpg

http://img183.auctions.yahoo.co.jp/users/8/4/2/6/youcin124-img600x450-1159971143dsc00315.jpg
sxse240
10-26-2006, 08:01 AM
Try my gear ratio calculator spreadsheet. (http://home.comcast.net/~amyers35/GearRatios.xls)
Dousan_PG
10-26-2006, 09:29 AM
u got one kevin?!?!
R34SKYLINE
10-26-2006, 11:51 AM
Is there a way I could figure which gear ratio I have if I know my car gets I believe 79mph @ 3000rpm my car is automatic with a JDM 180SX VLSD and my wheel and tire size are:

18" wheels with 225/40/18

From that info could one find out what final gear ratio I have even though I got an auto tranny?


P.S. I dont have Excel just the viwer but I do have Microsoft Works Suite 2006 and I was able to open it with Microsoft Works Spreadsheet and I can make changes and it does the recalculating automatically to :).......
R34SKYLINE
10-26-2006, 12:56 PM
I figured it out, pretty cool shit:
KA24DE A/T
http://img.photobucket.com/albums/v249/charlie2020/SCREEN%20SHOTS/SP32-20061026-115012.jpg

KA24DE M/T
http://img.photobucket.com/albums/v249/charlie2020/SCREEN%20SHOTS/SP32-20061026-124406.jpg