[Xtreme]

Hi, I just bought a 99 Jimny, I don't have any knowledge of zooks but am wanting to mod it (already has 2' OME suspension, 235's rear locker etc) am looking at putting in 50mm body lift, 3-4 inch suspension and running 31-33's I have read many of the posts on here regarding such mods alot of pros and cons but the first one I want to do is put in a sierra transfer case. I have been offered both NT and WT - i seem to find everyone says go with the WT its a 1L - what I wanted to know is are there different WT ones available and if so which is the best one to get? anything to look out for?

[want33s]

There are basically 5 transfers for Sierras.
A, 1.0 litre without 4wd switch.
B, 1.0 litre with 4wd switch. Same ratios as above but larger flanges that will interchange with NT or WT flanges.
C, 1.3 NT with drum handbrake. 8mm bolts in flanges.
D, 1.3 WT without handbrake. 10mm bolts in flanges.
E, Coily chain drive pus.

Aftermarket reduction gears can be fitted to all but A & E.


To retrofit to a Jimny you will want a WT transfer and a WT front driveshaft.
Check out Zukenutters build thread.

[zukenutter]

want33s wrote:

C, 1.3 NT with drum handbrake. 8mm bolts in flanges.
D, 1.3 WT without handbrake. 10mm bolts in flanges.

Are the holes spaced the same, I'm sure I read somewhere that someone had drilled out the NT flange to match to WT, is that true?
Seems forever ago now that I was sourcing all the bits, has become such a common swap now.

[want33s]

zukenutter wrote:

want33s wrote:

C, 1.3 NT with drum handbrake. 8mm bolts in flanges.
D, 1.3 WT without handbrake. 10mm bolts in flanges.

Are the holes spaced the same, I'm sure I read somewhere that someone had drilled out the NT flange to match to WT, is that true?
Seems forever ago now that I was sourcing all the bits, has become such a common swap now.

The hole spacing isn't quite the same. I've seen NT flanges drilled to WT and it isn't pretty.

[zukenutter]

Would be hard to get them right too I'd imagine.

[shep]

It isn't to hard to get drilled right if you use a tailshaft yoke as a guide. Better to just use a WT transfer however.

Anyone know if the jimny and Sierra transfers have the same ratios?

[zukenutter]

No Jimny is taller

Jimny NON VVT, High 1.32, Low 2.145
Jimny VVT, High 1.0, Low 2.002

Sierra 1.3, High: 1.409, Low: 2.268
Sierra 1.0, High: 1.590, Low: 2.558

[Xtreme]

excuse the ignorance but what is NON VVT and VVT? I have been offered a WT 89 or 90 model transfer case is there anything else I should be looking at on it? I believe it has WT flanges.

[shep]

That's a fairly big reduction in high range for vvt with wt transfer. What sort of rev's would a vvt manual jimny do at 100kph with 31s?

[zukenutter]

Have a read from about 3/4 way down this page of my build. Explains all.
http://www.auszookers.com/forum/viewtopic.php?f=4&t=16751&start=150

Also this may be of interest.
http://www.auszookers.com/forum/viewtopic.php?f=5&t=22832

shep wrote:

That's a fairly big reduction in high range for vvt with wt transfer.

Yep. Do you particularly want a WT transfer? A transfer from a non vvt Jimny will give about 24% reduction hi/lo and let you run 31s

shep wrote:

What sort of rev's would a vvt manual jimny do at 100kph with 31s?

Stock Jimny? I'd imagine a smidge over 3000rpm

Xtreme wrote:

excuse the ignorance but what is NON VVT and VVT? I have been offered a WT 89 or 90 model transfer case is there anything else I should be looking at on it? I believe it has WT flanges.

Post 2005 Jimnys VVT engines, pre 2005 Jimnys use the same engine except it didn't have vvt.
The gearbox and transfer case were updated at the same time. The new gearbox ratios means a WT transfer is way to low for practical use.

[Xtreme]

Picked up a WT switched transfer case. I am going to buy the rebuild kit for it and do that and some 4.16 gears - do I get the gears first and install them and then the rebuild kit?

[Gwagensteve]

Rebuild kit goes in at the same time as the gears.

Note that some of the parts in the rebuild kit will be supplied with the new gears anyway - needle roller bearings and intermediate shaft, gaskets and seals are normally supplied with reduction gears. These will generally also be included in the rebuild kit.

I think lowrange offer a rebuild kit minus the stuff included in the gear kits.

Steve.

[Xtreme]

Ok thanks I will look them up

[Janssen-910]

Hey Guys,

Does anyone know if i can put a oem handbrake setup on a WT transfer without handbrake then put it in my 87 NT Sierra?

Thanks Guys

[Blakey]

the Kit from lowrange comes with everything you need to rebuild except gasket goo and shims, for the input shaft. (which you will most likely need).
how detrimental to the bearings would the small amount of movement in the input shaft (in/out movement) be?

iv just installed some 6.5:1 gears into my sierra case for my Jimny but i have a feeling its gonna be way to low hi range. does anyone know the actual ratio as they only seem to state the percent rather then ratio of the Hi range of the TG 6.5 Gears?

I want to put it into my rev and speed calculator so i can see what ill be doing.

[losfer]

Janssen-910 wrote:

Hey Guys,

Does anyone know if i can put a oem handbrake setup on a WT transfer without handbrake then put it in my 87 NT Sierra?

Thanks Guys

yep everything from your NT transfer will bolt straight onto the WT transfer , in my opinion the nt handbrake always worked better than the wt.

[Blakey]

Nvm got the ratio the 6.5gear set hi range is 1.69. Counted the gears and worked it out that way.

[Bugsta]

Quote:

Jimny NON VVT, High 1.32, Low 2.145
Jimny Manual VVT, High 1.0, Low 2.002
Jimny Auto VVT, High 1.27, Low 2.54

Sierra 1.3, High: 1.409, Low: 2.268
Sierra 1.0, High: 1.590, Low: 2.558

[zukenutter]

Blakey, what year is your Jimny?

Why did you go so low in your choice of gear sets? Is your Jimny just going to be a weekend toy or a daily?

[Blakey]

zukenutter wrote:

Blakey, what year is your Jimny?

Why did you go so low in your choice of gear sets? Is your Jimny just going to be a weekend toy or a daily?

2005 VVT

purely a registered toy. its never been planned to be a daily. if i do decide to make it a daily ill probably remove the case and go something higher.

its not overly that bad i just put it in my calculator and ill be doing 100 at around 3800rpm on 31's or even on 29's which is roughly what i have on on now is only 4100rpm.

my jimny sits around that now anyway at 100.

but thats if i have the gearbox gears correct for the VVT jimny. i got them off a site that said it was the VVT jimnys

1st 3.652
2nd 1.942
3rd 1.423
4th 1
5th 0.864
Reverse 3.166

[zukenutter]

I think your calculator or the ratios you've used is not reliable and I don't think you'll manage to get to 100km/h before the rev limiter kicks in. It will be awesome as a toy though. Is that GPS or speedo reading of 100km/h?

[Blakey]

zukenutter wrote:

I think your calculator or the ratios you've used is not reliable and I don't think you'll manage to get to 100km/h before the rev limiter kicks in. It will be awesome as a toy though. Is that GPS or speedo reading of 100km/h?

haha was meant to say 3800 not 38000.

the speed/rpm is what's calculated from wheel size and all the ratios from the engine to the final drive.

but iv had another look over the gearbox ratios and found that mine were wrong. iv put the correct ones in for a VVT including the Diff ratios

and revs at 100 are gonna be around 5200rpm on 29" tyres i think ill be needing some new diff ratios to have a decent lower rev to get to 100.

Iv added a pic of the calculator i made. to work it all out. does pretty much everything for working out gear ratios. except gearing to get a specific rpm but i'm sure it can be easily added.

[zukenutter]

Haha, that's more like it but I think reality will see you doing more revs. I doubt that you'll find a 235 that is 29", more like 28.5 and some brands will be smaller. A set or R&P from a non VVT Jimny will help but it's a bit of work/cost.

[Blakey]

well the tyre sizes are just estimates and that was working it out for the 29". so the 235 tyre size is ignored. but i can make it work it out for a 235 tyre. just have to say its a metric tyre.

but yer ill probably doing a bit more as most tyres arent exactly what they say they are usually a bit smaller in rolling diameter

just had a look up and the NON VVT jimny Manual Diff ratios are 3.416. is this correct?

because if it is that will fix my high range to be pretty good. will drop my rpm at 100 on 29" to 4157rpm

would they be a straight swap into the VVT jimny diffs. from the NON VVT jimny.

[zukenutter]

Blakey wrote:

well the tyre sizes are just estimates and that was working it out for the 29". so the 235 tyre size is ignored. but i can make it work it out for a 235 tyre. just have to say its a metric tyre.

but yer ill probably doing a bit more as most tyres arent exactly what they say they are usually a bit smaller in rolling diameter.
I would prefer to run 235 with my ratios but my revs would be too high once the tread was half worn. 30s put me at stock gearing when they're new and as they wear I get closer to me preferred RPM/KM.

just had a look up and the NON VVT jimny Manual Diff ratios are 3.416. is this correct?
NON VVT = 4.09 --- VVT Jimny is 4.3

because if it is that will fix my high range to be pretty good. will drop my rpm at 100 on 29" to 4157rpm

would they be a straight swap into the VVT jimny diffs. from the NON VVT jimmy.
I think yes, would be easiest to find a complete centre rather than just the R&P

[Bugsta]

NON VVT= 4.09
VVT Manual Jimny is 4.3
VVT Auto Jimny is 4.09

[zukenutter]

What's a NON VVT Auto Bugsta?

[Blakey]

Bugsta wrote:

NON VVT= 4.09
VVT Manual Jimny is 4.3
VVT Auto Jimny is 4.09

are you sure about that non VVT one Suzuki Global says otherwise and that's right from suzuki.

you can see it here
http://www.globalsuzuki.com/automobile/ ... imny/spec/

or in attached picture

[zukenutter]

Yep I'm sure

[Bugsta]

zukenutter wrote:

What's a NON VVT Auto Bugsta?

All evidence suggests same as manual.