How To Install ZC31S Gearbox into ZC21S

Swift 2005+ technical and mechanical
Post Reply
ddamddimddem
Posts: 132
Joined: Sun Jul 17, 2011 7:38 pm
Location: indonesia

How To Install ZC31S Gearbox into ZC21S

What's needed to do this?
zc31s gearbox. zc31s gearbox mounting. zc31s driveshafts. zc31s knuckle

Right now i'm boosting zc21s with m16a short block. i want to swap in zc31s gearbox,


finally get my hands on zc31s pre-facelift gearbox and all parts needed for a price equal to 1000sgd
i change pcd into 4x100

on the pcd side need mod to install into my wilwood bbk

flywheel is thicker at zc31s
notice at the zc31s gearbox dont have speed sensor.. this is due to zc31s sensor is at the abs sensor at the knuckle.. but what intrigues us is that suzuki already have a hole to put into a speed sensor..

i imagine maybe ht81s or ignis sport use the same housing gearbox and have speed sensor at gearbox..

notice zc31s dont have a certain gear needed for the speed sensor..

at first garage told me to just install the gearbox w/o speed sensor.. and try it to see for trouble..

but i want my speedo running.. also EPS need speed sensor to function..
note that my car is fully daily car for me to go to work..

so we're going to move the gear into zc31s..

we cannot move whole m15a part into zc31s, due to height probs..

today going to send zc31s parts to mate fit with zc21s gear speed sensor
i'll keep u guys posted
Attachments
today sending this zc31s parts to fit with zc21s speed sensor
today sending this zc31s parts to fit with zc21s speed sensor
i dunno whats the name of these parts.<br />left is zc21s, right zc31s.. different height. so i cant move whole zc21s parts into zc31s gearbox. so we're moving the zc21s gear speed sensor into zc31s parts
i dunno whats the name of these parts.
left is zc21s, right zc31s.. different height. so i cant move whole zc21s parts into zc31s gearbox. so we're moving the zc21s gear speed sensor into zc31s parts
notice at the lower left of m16a gearbox, there's no speed sensor. but there is metal covering a hole for the speed sensor.. what purpose does it serve? maybe the hoousing is the same with ignis sport? i'm moving my speed sensor there, and inside also moving the sensor gear
notice at the lower left of m16a gearbox, there's no speed sensor. but there is metal covering a hole for the speed sensor.. what purpose does it serve? maybe the hoousing is the same with ignis sport? i'm moving my speed sensor there, and inside also moving the sensor gear
similiar but different
similiar but different
zc31s is heavier n thicker
zc31s is heavier n thicker
left need to machinized to fit my wilwood rotor
left need to machinized to fit my wilwood rotor
zc31s driveshaft bigger
zc31s driveshaft bigger
brown is zc21s driveshaft
brown is zc21s driveshaft
all parts needed
all parts needed
ddamddimddem
Posts: 132
Joined: Sun Jul 17, 2011 7:38 pm
Location: indonesia

below is zc21s and zc31s gear ratio
Attachments
zc21s gearbox ratio
zc21s gearbox ratio
Z2VhciByYXRpbyBzd2lmdC5qcGc.jpg (93.33 KiB) Viewed 22338 times
mine is 2006-2007 zc31s gearbox
mine is 2006-2007 zc31s gearbox
ScreenShot2012-02-01at32438AM.png (16.51 KiB) Viewed 22336 times
dmwdave
Posts: 3496
Joined: Mon Aug 25, 2003 12:00 am
Location: Brisbane
Location: Brisbane

If you buy the suzukisport lsd for the sport box it is machined already to accept the speedo drive hub,so direct bolt up.
Image
ddamddimddem
Posts: 132
Joined: Sun Jul 17, 2011 7:38 pm
Location: indonesia

wow thx for the hint dave, that mean the speed sensor will run fine in my zc21s..

what purpose does the lsd having a place for speed gear, since zc31s speed sensor is with abs?

does that mean zc31s gearbox is the same with ignis sport? and ignis sport speed sensor is in gearbox?

do u have used suzisport LSD ?

when i have extra money i'll be looking for lower final gear.. i saw in another post u say ignis sport, liana, mk3 sedan 1600 are a direct fit replacement.
ddamddimddem
Posts: 132
Joined: Sun Jul 17, 2011 7:38 pm
Location: indonesia

after surfing a lot.. i've concluded that.. ignis sport HT81S and swift sport zc31s gearbox housing is the same.. different is the location of speed sensor and final gear.. ignis 3.9 and sport 4.2 or 4.3.. i know this from forum that some ignis is using zc31s final, and a fellow at singapore use ignis final in his swift sport..

than some one in jamaica attempted to use zc31s LSD but problem is zc31s doesnot have place for speed sensor gear..

so my conclusion is HT81s LSD can be used in zc31s gearbox, but zc31s lsd cant be used in ht81s..

but if it's compatible with ht81s than its compatible with zc31s..
Attachments
look again at the left zc21s and right zc31s
look again at the left zc21s and right zc31s
zc31s LSD, no place for gear speed sensor.. right is zc31s stock
zc31s LSD, no place for gear speed sensor.. right is zc31s stock
HT81S and ZC31s LSD, notice there's place to put the speed sensor gear
HT81S and ZC31s LSD, notice there's place to put the speed sensor gear
lsd.jpg (34.67 KiB) Viewed 22208 times
ddamddimddem
Posts: 132
Joined: Sun Jul 17, 2011 7:38 pm
Location: indonesia

just seee the pics broos and sis hehe
Attachments
left zc31s machinized with gear sensor.. right zc21s
left zc31s machinized with gear sensor.. right zc21s
1.jpg (49.79 KiB) Viewed 22184 times
2.jpg
2.jpg (53.32 KiB) Viewed 22186 times
3.jpg
3.jpg (46.89 KiB) Viewed 22178 times
4.jpg
4.jpg (45.4 KiB) Viewed 22149 times
5.jpg
5.jpg (59.69 KiB) Viewed 22153 times
6.jpg
6.jpg (44.99 KiB) Viewed 22164 times
7.jpg
7.jpg (65.1 KiB) Viewed 22131 times
8.jpg
8.jpg (47.32 KiB) Viewed 22132 times
9.jpg
9.jpg (61.01 KiB) Viewed 22145 times
10.jpg
10.jpg (43.92 KiB) Viewed 22112 times
ddamddimddem
Posts: 132
Joined: Sun Jul 17, 2011 7:38 pm
Location: indonesia

seee the pics.. installed evrything.. next week hope see car runnin
Attachments
11.jpg
11.jpg (48.67 KiB) Viewed 22121 times
12.jpg
12.jpg (53.32 KiB) Viewed 22119 times
13.jpg
13.jpg (60.33 KiB) Viewed 22147 times
14.jpg
14.jpg (58.21 KiB) Viewed 22113 times
15.jpg
15.jpg (57.59 KiB) Viewed 22102 times
16.jpg
16.jpg (56.14 KiB) Viewed 22120 times
17.jpg
17.jpg (58.39 KiB) Viewed 22095 times
18.jpg
18.jpg (53.54 KiB) Viewed 22101 times
19.jpg
19.jpg (49.05 KiB) Viewed 22079 times
setting clutch at car
setting clutch at car
20.jpg (51.94 KiB) Viewed 22069 times
bzchi
Moderator
Posts: 10843
Joined: Mon Aug 25, 2003 12:00 am
Location: INT

Great posts (bagus sekali :D ), thanks for uploading all the photos too! =D>
ddamddimddem
Posts: 132
Joined: Sun Jul 17, 2011 7:38 pm
Location: indonesia

terimakasih (thanx) bzchi.. :) :)

now car is refitting my bbk so that i can still use 15" rims..

hope no further probs..

a friend coming to OZ at the end of the month.. any hint where to seek new/used parts for m16a? lsd, forged pistons, or even turbo? hehehe
dmwdave
Posts: 3496
Joined: Mon Aug 25, 2003 12:00 am
Location: Brisbane
Location: Brisbane

You could also have used the diff from m18 liana gearbox as it has a speedo chopper wheel and is direct bolt into m16 sport box,you could even use the front case off the m18 liana as well.
Image
ddamddimddem
Posts: 132
Joined: Sun Jul 17, 2011 7:38 pm
Location: indonesia

but arent all m18a liana came in automatic transmission, dave?
i never came accros into a manual m18a?

what is m18a final drive dave?
dmwdave
Posts: 3496
Joined: Mon Aug 25, 2003 12:00 am
Location: Brisbane
Location: Brisbane

You may not have manual m18 Liana in Indonesia but we certainly do.
M18 final drive is 3.9,the m18 diff also has the larger size shafts same as sport.
Image
ddamddimddem
Posts: 132
Joined: Sun Jul 17, 2011 7:38 pm
Location: indonesia

no we dont have any m18 in indo.. all engine imported..
ok that's really good info dave.. u also answered first question came to my mind haha

also i wanted to ask.. can i use ignis sport final drive into swift sport gearbox? is it plug n play?
dmwdave
Posts: 3496
Joined: Mon Aug 25, 2003 12:00 am
Location: Brisbane
Location: Brisbane

To my knowledge ignis sport has the small frame gearset like m13,m15.
Swift sport and m18 have the large frame gearset,so the diff on a ignis sport would not fit a swift sport.should be able to look up the part numbers of aftermarket or suzukisport diffs to determine for sure.
Image
ddamddimddem
Posts: 132
Joined: Sun Jul 17, 2011 7:38 pm
Location: indonesia

dmwdave wrote:To my knowledge ignis sport has the small frame gearset like m13,m15.
Swift sport and m18 have the large frame gearset,so the diff on a ignis sport would not fit a swift sport.should be able to look up the part numbers of aftermarket or suzukisport diffs to determine for sure.
yes they have different part number.. only came accross some one trying to put zc31s LSD into HT81s sayin his prob is in the gear speed sensor.. but then he never update again..
some one in singapore said he's using ht81s final in his zc31s.. maybe not plug n play..

well then if i'm ordering lsd, i should order zc31s LSD than machinized it again to fit zc21s speed sensor.. do u have one?

and for final i should be looking for m18a final gear.. or ht81s but i have to ask further about it to this singapore fellow swifter..

by the way i have suzuki RS413 RS415 RS416 code parts, i see that m13a have 4wd variant.. do u recommend this 4wd conversion?
dmwdave
Posts: 3496
Joined: Mon Aug 25, 2003 12:00 am
Location: Brisbane
Location: Brisbane

If you buy the suzukisport lsd to suit the sport box it comes with provision for a speed sensor(as it can also be used in the 1600 sedan box(G16).
If you need m18 3.9 cwp I have them in stock,I also have M18 diff with speed sensor chopper wheel.
Would love to get my hands on a m13 4wd but not available in Australia,as far as I know these were only released in Hungary.
Image
ddamddimddem
Posts: 132
Joined: Sun Jul 17, 2011 7:38 pm
Location: indonesia

wow.. i think i need those final gear hehe.. do i need the diff or just the final will work fine?
for lsd i guess m factory lsd is better for me bcause it's cheaper hehe..

well i have rs413 4wd code parts.. if u needed those i can scan it..

my friend is goin to melbourne next month.. where's your location?
how much for the final gear and everything needed to install into my sport gearbox?
ddamddimddem
Posts: 132
Joined: Sun Jul 17, 2011 7:38 pm
Location: indonesia

how bout m16a manual liana, do u kno whats the final dave?
dmwdave wrote:If you buy the suzukisport lsd to suit the sport box it comes with provision for a speed sensor(as it can also be used in the 1600 sedan box(G16)
so i can use 1600 sedan box final too? what's the final?
is 1600 sedan box a baleno/cultus crescent?
User avatar
Bewitched Gti
Posts: 3207
Joined: Thu Jun 09, 2005 11:16 pm
Location: Perth WA
Location: Tamworth NSW

Swift sedan box, it was the original large frame gearset, the baleno (G16) uses a small frame gearset (like the m13 ignis) but the j18 baleno is the exception in that it has a large frame gearset.
Hope this helps.
Btw the way to determine frame size of gearset without splitting the box:
There are 3 14mm bolts (with philips head indents) on the top of the case, these retain springloaded balls on gear selector rods...
If all three are side by side its a small frame, if two are side by side and one is set apart from them, its the large frame gearset
Garretliu
Posts: 4
Joined: Sat Mar 15, 2014 2:26 am
Location: Singapore

dmwdave wrote:To my knowledge ignis sport has the small frame gearset like m13,m15.
Swift sport and m18 have the large frame gearset,so the diff on a ignis sport would not fit a swift sport.should be able to look up the part numbers of aftermarket or suzukisport diffs to determine for sure.
Hi guys i know this is old thread. But to share...the final drive for ignis sport can be fitted into a swift sport vice versa. This has be done on my FI SSS. The reason some Singaporean used 3.9 FD on their FI SSS is to spread the torque. Too much wheel spin on bends.
Jmoore
Posts: 129
Joined: Wed Jan 28, 2004 12:04 pm
Location: Perth WA
Location: Perth, WA

Garretliu wrote:
dmwdave wrote:To my knowledge ignis sport has the small frame gearset like m13,m15.
Swift sport and m18 have the large frame gearset,so the diff on a ignis sport would not fit a swift sport.should be able to look up the part numbers of aftermarket or suzukisport diffs to determine for sure.
Hi guys i know this is old thread. But to share...the final drive for ignis sport can be fitted into a swift sport vice versa. This has be done on my FI SSS. The reason some Singaporean used 3.9 FD on their FI SSS is to spread the torque. Too much wheel spin on bends.
But you have to be careful as there is different models within the SSS range, type 1, 2 and 3.
Garretliu
Posts: 4
Joined: Sat Mar 15, 2014 2:26 am
Location: Singapore

Jmoore wrote:
Garretliu wrote:
dmwdave wrote:To my knowledge ignis sport has the small frame gearset like m13,m15.
Swift sport and m18 have the large frame gearset,so the diff on a ignis sport would not fit a swift sport.should be able to look up the part numbers of aftermarket or suzukisport diffs to determine for sure.
Hi guys i know this is old thread. But to share...the final drive for ignis sport can be fitted into a swift sport vice versa. This has be done on my FI SSS. The reason some Singaporean used 3.9 FD on their FI SSS is to spread the torque. Too much wheel spin on bends.
But you have to be careful as there is different models within the SSS range, type 1, 2 and 3.
Haha back in those day there is only 1 type. 2007 sss. Fitted in well. Now driving iggy. Fitted my sss fd.
ddamddimddem
Posts: 132
Joined: Sun Jul 17, 2011 7:38 pm
Location: indonesia

I'd love to have ignis final
Chadvdw67
Posts: 1
Joined: Tue Jan 06, 2015 4:40 am
Location: South Afr

Hi guys, can anyone tell me if the gearbox internals from a ZC31 box will fit into a ZC21 box? I can get a ZC31 box for dirt cheap, but a casing has a whole in it, so I just want to know if I can swap internals from the ZC31 box into my ZC21 box?

Also, the same guy has a ZC31 intake manifold, other than the adapter needed to fit the ZC21 throttle body to the mani, are there any other mods needed? Or is it a direct bolt on?
ddamddimddem
Posts: 132
Joined: Sun Jul 17, 2011 7:38 pm
Location: indonesia

Chadvdw67 wrote:Hi guys, can anyone tell me if the gearbox internals from a ZC31 box will fit into a ZC21 box? I can get a ZC31 box for dirt cheap, but a casing has a whole in it, so I just want to know if I can swap internals from the ZC31 box into my ZC21 box?

Also, the same guy has a ZC31 intake manifold, other than the adapter needed to fit the ZC21 throttle body to the mani, are there any other mods needed? Or is it a direct bolt on?
No it cant..

Yes that is everything u need for the manifold to work
dyaptinchay
Posts: 2
Joined: Tue Jul 24, 2018 7:46 pm
Location: manila

will a ignis sport differential fit a zc21s m/t?
bostssgt
Posts: 61
Joined: Thu Oct 12, 2006 11:58 pm
Location: quebec/canada
Location: quebec/canada

reviving this thread to have conclusion on the differential assembly of ht81s vs zc31s
can ht81s be fitted in the large frame gearset boxes? ( 1600 fwd 1989-1994 canadian)
what are the differences??
cusco parts numbers and megazip parts numbers make me pretty sure it is not compatible but want to confirm what is the difference (axles splines?)
I.am.oliver
Posts: 1
Joined: Tue Jan 05, 2021 2:08 pm
Location: Phillippines

Hi everyone.i also own a zc21s and was wondering if the lightened flywheel of a m16a or swift sport 1.6 would fit on my 1.5 transmission?
Post Reply