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W/T and N/T Gearbox - what's the difference?

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redzook91

Joined: Sun Apr 18, 2010 11:30 pm
Posts: 509
Location: Brisbane

Posted: Sat Jul 03, 2010 3:24 am

Picked up a gearbox the other day and I cant tell what it's out of, the only stamp I can find on it is a little circle with 2/11 in it

. It's a 5 speed sierra box but is there a difference between W/T and N/T in this respect?

Cheers,
Red

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lump_a_charcoal

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Posted: Sat Jul 03, 2010 4:00 am

Doubt it.

SuziBlu

Joined: Mon Sep 14, 2009 11:30 pm
Posts: 4268
Location: Eyre Peninsula

Posted: Sat Jul 03, 2010 4:01 am

lump_a_charcoal wrote:

Doubt it.

Hmmm.

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redzook91

Joined: Sun Apr 18, 2010 11:30 pm
Posts: 509
Location: Brisbane

Posted: Sat Jul 03, 2010 4:04 am

Doubt what? there being a difference?

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SuziBlu

Joined: Mon Sep 14, 2009 11:30 pm
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Location: Eyre Peninsula

Posted: Sat Jul 03, 2010 4:05 am

lol im stumped at Lumpas answer too.

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foolsp33d

Joined: Tue Mar 11, 2008 10:30 pm
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Posted: Sat Jul 03, 2010 4:20 am

no difference in WT NT 5speeds.. bolt it in...

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squirezook

Joined: Wed Aug 27, 2008 11:30 pm
Posts: 300
Location: Brisbane southside

Posted: Sat Jul 03, 2010 4:24 am

foolsp33d wrote:

no difference in WT NT 5speeds.. bolt it in...

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steak_knife

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Joined: Fri May 22, 2009 11:30 pm
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Location: Smart Ass Island

Posted: Sat Jul 03, 2010 4:36 am

squirezook wrote:

foolsp33d wrote:

no difference in WT NT 5speeds.. bolt it in...

Switch's boy's, w/t has a couple of extra's for emission control's..

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Scrawny

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Joined: Tue Jan 29, 2008 10:30 pm
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Posted: Sat Jul 03, 2010 4:45 am

Input shaft size and spline count, 19.1mm and 18 spline (WT) vs 22.4 and 20 (NT)

redzook91

Joined: Sun Apr 18, 2010 11:30 pm
Posts: 509
Location: Brisbane

Posted: Sat Jul 03, 2010 5:42 am

ScrawnC wrote:

Input shaft size and spline count, 19.1mm and 18 spline (WT) vs 22.4 and 20 (NT)

It was your gearbox dude, you should know! :lol:

I'll check that though...

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Scrawny

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Posted: Sat Jul 03, 2010 5:54 am

Came out of this

redzook91

Joined: Sun Apr 18, 2010 11:30 pm
Posts: 509
Location: Brisbane

Posted: Sat Jul 03, 2010 5:56 am

Hi-top drover = N/T isn't it? They're a 1.0 or a 1.3?

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whincup

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Joined: Sat Apr 17, 2010 11:30 pm
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Location: Gracemere, QLD
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Posted: Sat Jul 03, 2010 6:44 am

a 1.0 is only a 4 speed... so its either WT or NT 1.3

Scrawny

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Joined: Tue Jan 29, 2008 10:30 pm
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Location: Brissie
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Posted: Sat Jul 03, 2010 6:56 am

NT with 1.3

Bruce

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Joined: Sun Jun 11, 2006 11:30 pm
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Location: Brisbane

Posted: Sat Jul 03, 2010 7:41 am

ScrawnC wrote:

Came out of this

That's Gibbon's old car. That had a 1.6 in it

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want33s

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Joined: Fri Nov 16, 2007 10:30 pm
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Location: Sunshine Coast Qld

Posted: Sat Jul 03, 2010 8:02 am

NT had less switches than WT.
NT also has different 5th gear ratio to WT.
Externally they are identical and will interchange...

Some years had different spline count on input shaft but I'm yet to discover one after wrecking almost 20 cars.

steak_knife

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Joined: Fri May 22, 2009 11:30 pm
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Location: Smart Ass Island

Posted: Sat Jul 03, 2010 9:17 am

want33s wrote:

NT had less switches than WT.
NT also has different 5th gear ratio to WT.
Externally they are identical and will interchange...

Some years had different spline count on input shaft but I'm yet to discover one after wrecking almost 20 cars.

By how much??

I've yet to see different splines to.

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Scrawny

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Posted: Sat Jul 03, 2010 10:19 am

Just going off the Exedy website listing

want33s

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Joined: Fri Nov 16, 2007 10:30 pm
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Location: Sunshine Coast Qld

Posted: Sat Jul 03, 2010 10:33 am

NT is slightly lower geared in 5th than WT but only by a fly shit.

5th WT is 0.795:1

I think 5th NT is 0.830:1

steak_knife

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Joined: Fri May 22, 2009 11:30 pm
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Location: Smart Ass Island

Posted: Sat Jul 03, 2010 10:43 am

want33s wrote:

NT is slightly lower geared in 5th than WT but only by a fly shit.

5th WT is 0.795:1

I think 5th NT is 0.830:1

Cheer's..

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303zuke

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Joined: Wed Aug 19, 2009 11:30 pm
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Vehicle: LJ50V, SJ70

Posted: Sat Jul 03, 2010 11:12 am

All the brochures and manuals I have show the 5th gear ratio for ALL Leafy Sierras (and Drovers!) to be 0.793. 1st series Vitara and Coily have 0.864 5th, and these can be swapped into a Sierra box for a slightly better 5th with big tyres.

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want33s

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Joined: Fri Nov 16, 2007 10:30 pm
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Location: Sunshine Coast Qld

Posted: Sat Jul 03, 2010 12:27 pm

I got the 0.795 from a WT owners manual....

Fatzook

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Posted: Sat Jul 03, 2010 12:32 pm

ScrawnC wrote:

Came out of this

WHoa!! I haven't seen that thing for ages!! Is it still going?

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Highway-Star

Joined: Thu Apr 30, 2009 11:30 pm
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Location: Ipswich
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Posted: Sat Jul 03, 2010 2:25 pm

I was always under the impression that the 0.79:1 ratio was a NT thing, and the 0.83 was a WT onwards thing...

Thought they did it when they put the 3.7 diffs in to make highway cruising RPM comparable to the 3.9 diffed NT with the higher overdrive...

As a side note I've seen some very late leafies and coilys that don't have the little rubber timing bung that likes to go MIA

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Bruce

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Posted: Sat Jul 03, 2010 8:45 pm

Fatzook wrote:

ScrawnC wrote:

Came out of this

WHoa!! I haven't seen that thing for ages!! Is it still going?

No mate he parted it out about 2 years ago. I got a heap of stuff out of it.

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Fatzook

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Joined: Sat Oct 27, 2007 11:30 pm
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Location: The Hills
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Posted: Sat Jul 03, 2010 11:21 pm

Bruce wrote:

No mate he parted it out about 2 years ago. I got a heap of stuff out of it.

let me guess, its in your shed behind royces' shit

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Bruce

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Joined: Sun Jun 11, 2006 11:30 pm
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Location: Brisbane

Posted: Sun Jul 04, 2010 12:50 am

Fatzook wrote:

Bruce wrote:

No mate he parted it out about 2 years ago. I got a heap of stuff out of it.

let me guess, its in your shed behind royces' shit

Well sort of. Yep got Royce's crap in my shed still but I also have a 85 Drover/Zook and I used some parts on that. :wink:

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