Differential options

[seattlejester]

I was kind of curious after seeing a few S15 helical differentials for a down right affordable price.

 

I stumbled upon this list.

http://www.eatsleepboost.lt/tech-info/nissan-tech-info/nissan-r200-diff-ratios/

 

Copied below:

Nissan R200 diff ratios + drivetrain info

Nissan R200 diff ratios:

3.692 – 48/13
3.916 – 47/12
4.083 – 49/12
4.111 – 37/9
4.363 – 48/11
4.636 – 51/11
4.900 – 49/10

Z33 – MT – R200 – 3.538
Z33 – MT – R200V – 3.538
Z33 – AT – R200V – 3.357
Z32 – VG30DETT – R230V – 3.692 (6×1 output shafts)
Z32 – VG30DE – R200V – 4.083 (5×1 output shafts)
G35 – Sedan – AT – R200 – 3.357
G35 – Sedan – MT – R200V – 3.538
G35 – Sedan – AWD – AT – R200 – 3.357
G35 – Coupe – MT – R200V – 3.538
G35 – Coupe – AT – R200 – 3.357
G35 – Coupe – AT – R200V – 3.357
Q45 – G50 – R200V – 3.538
Q45 – FY33 – R200V – 3.692
J30 – R200V – 3.916

R34 GT – RB20DE – manual/auto – 4.363
R34 GT – RB25DE – manual – 4.363
R34 GT – RB25DE – auto – 4.083
R34 GT-FOUR – RB25DE 4wd – manual/auto – 4.363
R34 GTT – RB25DET – manual – R200H – 4.111
R34 GTT – RB25DET – auto – 4.111
R34 GTR – RB26DETT – manual – R230 – 3.545

R33 GTS – RB20E – manual/auto – 4.083
R33 GTS – RB20E (96.1+) – auto – 3.583
R33 GTS – RB25DE – manual/auto – 4.363
R33 GTS-4- RB25DE 4wd – manual/auto – 4.363
R33 GTST – RB25DET – manual – R200V – 4.111
R33 GTST – RB25DET – auto – 4.363
R33 GTR – RB26DETT – manual – R200 (mechanical LSD) – 4.111 (6×1 output shafts)
R33 GTR Vspec – RB26DETT – manual – R230V (el. controlled) – 4.111 (6×1 output shafts)

R32 GTE – RB20E – 4.363
R32 GTE – RB20E (ABS) – manual/auto – 4.083
R32 GTS-t – RB20DET – manual/auto – 4.363
R32 – RB20DET 4wd – manual – 4.375
R32 GTR – RB26DETT – manual – F160 – 4.111 – (Front Final Gear)
R32 GTR – RB26DETT – manual – R200 (mechanical LSD) – 4.111

S15 – SR20DE – manual/auto – 4.083
S15 – SR20DET – manual – R200H – 3.692 (5 & 6 bolt)
S15 – SR20DET – auto – R200V – 3.916

S14 – KA24DE – USDM – manual/auto – 4.083
S14 – SR20DET – EDM – manual – R200V – 3.692
S14 – SR20DET – EDM – auto – R200V – 3.916
S14 – SR20DET – ADM – manual – 3.692
S14 – SR20DE – JDM – manual – 4.083
S14 – SR20DET – JDM – manual – 4.083
S14 – SR20DET – JDM – auto – 3.916

S13 – KA24DE – USDM – manual/auto – R200/R200V – 4.083
S13 – CA18DE – JDM – r180 6 bolt – manual/auto – 4.363
S13 – CA18DET – EDM – manual/auto – R200 – 3.916
S13 – CA18DET – ADM – manual/auto – 4.363
S13 – CA18DET – JDM – manual/auto – 4.363
S13 – SR20DE (ABS) – manual/auto – 4.111
S13 – SR20DET – manual – 4.111
S13 – SR20DET – auto – 3.916
PS13/RPS13 – SR20DE (ABS) – JDM – manual/auto – 4.083
PS13/RPS13 – SR20DET – JDM – manual – 4.083
PS13/RPS13 – SR20DET – JDM – auto – 3.916

A31 – RB20E – manual/auto – 3.916 (5 & 6 bolt)
A31 – RB20DE – manual – 4.363
A31 – RB20DE – auto – 4.083
A31 – RB20DET – manual/auto – 4.363
A31 – RB20DET 4wd – manual/auto – 4.375

C23 – SR20DE – manual/auto – 4.363
C23 – CD20T – manual/auto – 4.363
C23 – LD23 – manual/auto – 4.363
C23 – CD20T 4wd – manual/auto – 4.636
C23 – LD23 4wd – manual/auto – 4.636
C23 – SR20DE 4wd – auto – 4.900
C23 – SR20DE 4wd – manual – 4.636
C23 – GA16DE – 4.636

C33 – RD28 – manual – 3.916
C33 – RD28 – auto – 3.692
C33 – RB20E – auto – 3.583
C33 – RB20DE – manual – 4.363
C33 – RB20DE – auto – 4.083
C33 – RB20DET – auto – 4.363

C34 – RB20E – manual/auto – 3.916
C34 – RB20DE – auto – 4.111
C34 – RB25DE – auto – 4.363
C34 – RB25DE 4wd – auto – 4.363
C34 – RB25DET – auto – 4.111

C35 – RD28 – manual/auto – 3.692
C35 – RB20DE – auto – 4.111
C35 – RB25DE 4wd – auto – 4.363
C35 – RB25DET – auto – 4.111

Y32 Gloria – 4.636

WC34 – SR20DE 4wd – manual/auto – 4.363
WC34 – RB20E – manual/auto – 4.083
WC34 – RB20DE – manual/auto – 4.083
WC34 – RB25DE – manual/auto – 4.083
WC34 – RB25DET – manual/auto – 4.083
WC34 – RB25DET 4wd – manual – 4.111
WC34 – RB25DET 4wd – auto – 4.083
WC34 – RB26DETT 4wd – manual – 4.111

Diff output shafts / stubs

3×2 use 8mm bolts, 5×1 use 8 or 10mm bolts, 6×1 use 10mm bolts
29 and 30 spline stubs are 30mm outside diameter
31 spline stubs are 33mm outside diameter

S13 – 30mm, 29 spline, 3×2
S14 (pre 96) – 30mm, 29 spline, 3×2
S14 (96+) – 30mm, 30 spline, 3×2
S15 – 30mm, 30 spline, 5×1
J30 (pre 94) – 30mm, 29 spline, 5×1
J30 (94+) – 30mm, 30 spline, 3×2
Z32 NA – 29 spline, 5×1
Z32 TT – 31 spline, 6×1
Z33 – 32mm, 31 spline, 6×1
Q45 G50 (pre 96) – 30mm, 30 spline, 6×1
Q45 (96+)- 30mm, 30 spline, 5×1
R32 GTR (pre pull clutch/94) – 30mm, 30 spline, 6×1
R32 GTR (94+) – 33mm , 31 spline, 6×1
R33 GTR – 33mm, 31 spline, 6×1
R34 GTR – 30 spline, 6×1
R34 GTT – 30 spline, 5×1

Axles

There are two types of axles – tripod (regular s-body axles) and Rzeppa style (z32, skylines, q45 etc). Rzeppa ones are stronger due to bigger contact patch inside the cv joint.

S13, S14, S15, J30, Z32 NA, Z33, R32, R33 GTST – smaller shaft splines (29 spline, 30mm)
Q45, Z32 TT, R33 GTR, R34 GTR – bigger shaft splines (32 spline, 32.5mm OD)

S13, S14, S15, J30 (94+) – tripod cv joints
J30 (pre 94), Q45, Z32, Z33, R32 GTR, R33 GTR – Rzeppa style cv joints

Differential bearings

R200 side bearing “30209”

R200 Oil seals

Pinion oil seal 38189-Y0810, 38189-Y081A – 40x75x12
Alternate aftermarket part # 190 34067B (CORTECO), NOK BH3063E

Gearbox ratios

S13 CA18DET (EURO)
1- 3.592
2- 2.057
3- 1.361
4- 1.000
5- 0.821

S13 CA18DET (JDM)
1- 3.321
2- 1.902
3- 1.308
4- 1.000
5- 0.838

S13 SR20DET (also same on all KA24 engines)
1- 3.321
2- 1.902
3- 1.308
4- 1.000
5- 0.759

S14 SR20DET
1- 3.321
2- 1.902
3- 1.308
4- 1.000
5- 0.838

S15 SR20DET 6speed
1- 3.626
2- 2.200
3- 1.541
4- 1.213
5- 1.000
6- 0.767

Driveshaft info

S13 front part:
AT – 432mm
MT – 395mm

S13 rear part:
ABS – 590mm
NON-ABS – 605mm

S14 front part:
AT – 441mm
MT – 421mm

S14 rear part:
ABS – 636mm
NON-ABS – 650mm

[seattlejester]

The missing bits as far as I have seen.

 

R200 from the 280z, 280zx, Z31 300zx are all 29 spline. Given interchangability between the early S13, I would presume they are similarly 30mm.

 

Given these all have the same ring gear and even use the same bearing, I would be tempted to say there is quite a bit of interchangability.

 

So our easy targets of 29 spline 30mm are:

S13 – 30mm, 29 spline, 3×2
S14 (pre 96) – 30mm, 29 spline, 3×2

J30 (pre 94) – 30mm, 29 spline, 5×1

Z32 NA – 29 spline, 5×1

 

Adding in the information above in similar format.

S30 (280z) - 30mm, 29 spline, 4x1

S130 (280zx turbo) - 30mm, 29 spline, direct input, no input shaft

Z31 (na and turbo) - 30mm, 29 spline, direct input, no input shaft

S13 – 30mm, 29 spline, 3×2
S14 (pre 96) – 30mm, 29 spline, 3×2

J30 (pre 94) – 30mm, 29 spline, 5×1

Z32 NA – 29 spline, 5×1

 

Take with a dash of salt, since I have the 3x2 pattern J30 center, but a 280zx turbo axle, at least on the driver side, and that axle slipped in and out without the lock ring. Some people say the later Q45 have the bigger axles even in some of the slightly earlier years, so take some precaution.

 

Well glossing over my personal issues.

 

There are the 29 spline options.

 

One of the problem is that the early differentials of most of the long nose variety, S30 and S130, have 10mm bolt holes. The later ones starting from the Z32 era have 12mm bolt holes. You can purchase shims that have an OD of 12mm and an ID of 10mm to make up the difference. Alternatively the cross over is the Z31, the differential for these cars are long nose, but came with 12mm bolt holes. While the CLSD R200 from the 300zx turbo command an eye watering value, the NA ones really shouldn't. 

 

Alternatively, if you plan on using the input shaft, and an axle with 2 flanges on either end, any of these center sections should physically fit in the long nose case and accept the ring gear (with the bushings making up the bolt hole difference). The input shafts being the same 30mm diameter should mean the seal should seal as well with the exclusion of some later Q45 and the Z32TT and I guess the later 32 and 33 GTR although I doubt that is an option for many here.

 

Just some more info for some considering alternative swaps. The S15 Silvia Helicals are OEM and quite affordable many coming with inputs for ~$400.

[jhm]

Wow, great info!  Sticky-worthy?

[NewZed]

10 hours ago, seattlejester said:

The missing bits as far as I have seen.

 

R200 from the 280z, 280zx, Z31 300zx are all 29 spline. Given interchangability between the early S13, I would presume they are similarly 30mm.

 

Given these all have the same ring gear and even use the same bearing, I would be tempted to say there is quite a bit of interchangability.

 

J30 (pre 94) – 30mm, 29 spline, 5×1

 

Take with a dash of salt, since I have the 3x2 pattern J30 center, but a 280zx turbo axle, at least on the driver side, and that axle slipped in and out without the lock ring.

 

There are the 29 spline options.

 

You haven't mentioned the different axle lengths, VLSD compared to open or or CLSD.  The 280Z and 280ZX R200 axles will slide in to the 29 spline VLSD diffs but they won't actuate the VLSD unit, because they're not long enough.  I bought a salvage yard J30 R200 just to see about what was possible with it.  Somebody on the site did the same and made their own extended axle by welding an extension on to their 280Z R200 axle.  He said it worked fine, but it seems sketchy.  Worst case though, if his modified axle breaks, he just has an open diff with a stub floating around in it, contained.

 

One more variable.

[seattlejester]

 

15 minutes ago, NewZed said:

You haven't mentioned the different axle lengths, VLSD compared to open or or CLSD

 

Yes very very good point, I was looking at strictly from a spline perspective, but any VLSD differential will need the companion flange that comes with it at least on the passenger side.

 

The original chart linked does reference the VLSD differentials with the V designation after R200 ala R200V, any of those will NEED the companion flange on the passenger side and if you don't want to run lop sided axles get the one on the driver side. According to many those VLSD passenger inputs should be interchangeable as well with people running the 88 Shiro axle in J30's and people with S14's running J30 centers as well.