Gearbox Ratios

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Crumz
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Gearbox Ratios

Post by Crumz »

Project 64 wrote:All ratios are :1
Gemini
3.790
2.175
1.417
1.000
0.855
R 3.826
F 3.9

Gemini Twincam
3.174
1.963
1.364
1.000
0.855
R 3.402
F 3.909

Piazza Turbo
3.431
1.963
1.364
1.000
0.775
No reverse or final.

117
3.207
1.989
1.356
1.000
0.855
R 3.438
F 3.909 or 4.1

Bellett
3.746
2.320
1.508
1.000
R 4.994
F 3.778 or 4.1

Bellett 1500/1600 GT
3.444
2.133
1.387
1.000
R 4.593
F 3.778

Bellett 1600/1800 GT
3.207
1.989
1.356
1.000
R 3.592
F 3.727

Bellett GTR
3.467
1.989
1.356
1.000
R 3.592
F 3.727
S N 3 A K Y wrote:tx/c/d 4sp-
1st 3.507:1
2nd 2.175:1
3rd 1.418:1
4th 1.000:1
rev 3.927:1

te 4sp-
1st 3.467:1
2nd 1.989:1
3rd 1.356:1
4th 1.000:1
rev 3.500:1

tc/d 5sp -
1st 3.507:1
2nd 2.175:1
3rd 1.418:1
4th 1.000:1
5th 0.856:1
rev 3.759:1

te 5 sp -
1st 3.467:1
2nd 1.989:1
3rd 1.356:1
4th 1.000:1
5th 0.855:1
rev 3.438:1

deisel 5 speed
1st 3.48:1
2nd 1.99:1
3rd 1.36:1
4th 1.00:1
5th 0.86:1
Bugle wrote:I have one of these boxes
Some late 70's or early 80's 117 1.8 SOHC gearbox
3.431
1.963
1.364
1.000
0.775
3.402
So it's the same as Piazza turbo except coarse spline output shaft.

Also this sheet i've got has 2 sets of ratios for the 117 1.8 DOHC for some reason.
3.501 3.174
2.165 1.963
1.413 1.364
1.000 1.000
0.855 0.855
3.753 3.402

Piazza G200 DOHC
3.312
2.054
1.400
1.000
0.840
3.550

Another set found in early Piazza turbos
3.174
1.963
1.364
1.000
0.775
3.402
Rowdayoh wrote:Rodeo 4 & 5 sp ratios are:
4 speed
1 4.122:1
2 2.493:1
3 1.504:1
4 1.000:1
R 3.820:1

5 speed
1 4.122:1
2 2.493:1
3 1.504:1
4 1.000:1
5 0.855:1
R 3.820:1
Poida wrote:I have some figures I have found published in various books. I included details of the reference material also.

[Gregorys 214]
TF-TG petrol 4 Speed
3.790:1 - 1
2.175:1 - 2
1.417:1 - 3
1.000:1 - 4
3.826:1 - R

[Gregorys 214]
TF-TG petrol 5 Speed
3.790:1 - 1
2.175:1 - 2
1.417:1 - 3
1.000:1 - 4
0.855:1 - 5
3.826:1 - R

[Gregorys 190]
TE petrol 4 speed
3.467:1 - 1
1.989:1 - 2
1.356:1 - 3
1.000:1 - 4
3.500:1 - R

[Gregorys 190]
TE petrol 5 speed
3.467:1 - 1
1.989:1 - 2
1.356:1 - 3
1.000:1 - 4
0.855:1 - 5
3.438:1 - R

[Isuzu PF50 manual PF-WE-551]
TX (4spd MSE type box with top inspection plate)
3.507:1 - 1
2.175:1 - 2
1.418:1 - 3
1.000:1 - 4
3.927:1 - R

[Isuzu PF50 manual PF-WE-771]
(4spd MSG type box)
3.507:1 - 1
2.175:1 - 2
1.418:1 - 3
1.000:1 - 4
3.826:1 - R

[Isuzu PF50 manual PF-WE-771]
(5spd MSG type box)
3.507:1 - 1
2.175:1 - 2
1.418:1 - 3
1.000:1 - 4
0.856:1 - 5
3.759:1 - R

[Isuzu PF60 manual PF-WE-331]
(4spd MSG type box)
3.43:1 - 1
3.96:1 - 2
1.36:1 - 3
1.00:1 - 4
3.46:1 - R

[Isuzu PF60 manual PF-WE-331]
(5spd MSG type box)
3.79:1 - 1
2.17:1 - 2
1.41:1 - 3
1.00:1 - 4
0.86:1 - 5
3.75:1 - R


I have different ratios quoted in my PF-WE-331 chassis manual but I'm not convinced they are correct for Australian produced vehicles. They may well be but until I rip down a box and identify the ratios I'll hold back on listing them as correct. They list boxes and engines that never existed in Australia like a diesel 4 speed and a 1.8 litre Gemini engine. Apart from that, the ratios quoted for the petrol are also not listed in any other Australian publication.


They are;

Diesel 5 spd
R 3.438:1
1 3.736:1
2 1.963:1
3 1.364:1
4 1.000:1
5 0.855:1

Petrol 5 spd
R 3.438:1
1 3.735:1
2 2.165:1
3 1.413:1
4 1.000:1
5 0.855:1

Diesel 4 spd
R 3.438:1
1 3.736:1
2 1.963:1
3 1.364:1
4 1.000:1

Petrol 4 spd
R 3.438:1
1 3.735:1
2 2.165:1
3 1.413:1
4 1.000:1


These manuals are produced for the Japanese production cars. Note how they list the G180Z engine as an option in the specs. We all know this isn't true when it comes to Oz cars.

* It might however be an interesting method of convincing the authorities to allow a G180Z engine without the need for engineering though! Don't hold your breath.
Bugle wrote:My 1982 PF60/PFD60 (PF-WE-121) manual has diesel ratios listed..
3.467 - 1
1.989 - 2
1.355 - 3
1.000 - 4
0.855 - 5
3.438 - R
Thanks yet again to PSI-26L
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Rodeobob
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Post by Rodeobob »

From the 1981 Rodeo manual MSG box
4 & 5 speed Both "L" gear set
4.697
2.941
1.629
1.000
0.888
R4.277
as you will see its a different "L" set than below.

Next is the WFR manual for the Shuttle bus. It shares the chapter with the KB Rodeo. So i will list the Ratios and what it ws in. The sets are coded by letters like the other gearboxes.
WFR is the bus
KB is the rodeo
KBD is the Diesel Rodeo.
Box model,
ratios,
vehicle and engine. I will do the 4 & 5 speed seperate so its not so confusing. I will omit the irrelavant engines.

MSG4K
4.122
2.439
1.504
1.000
R3.820
KB G200Z
KBD C223

MSG4L
4.697
2.841
1.629
1.000
R4.354
KB G161Z
KBD C190

MSG5K
4.122
2.439
1.504
1.000
0.855
R3.753
WFR 4ZB1
KB G200Z
KBD C223

MSG5L
4.697
2.841
1.629
1.000
0.898
R4.277
WFR 4ZC1
KBD C190
KB G161 (note no Z so its probably irrelavant and for africa or something, they would have had budget push rod over there)

MSG5C
3.413
1.969
1.364
1.000
0.855
R3.402
KB 4ZD1

MSG5E
3.785
2.171
1.413
1.000
0.855
R3.753
KB 4ZD1

Theres two sets listed for the 4ZD1. There were 1000kg rated Rodeos and then 500kg rated LS Space cab Rodeos. Im tipping that the "C" set was for the latter as its the same as the Piazza ratios for he 4ZC1-T. Just happen to have a stuffed one in the shed, it was replaced by an "L".


More MSG ratios. TF rodeo factory manual, not fitted to australian TF's. Similar ratios as listed in the WFR Shuttle bus manual.

Omit the overdrive ratio for the 4 speed.

MSG 2x4
No engine specified for the ratio sets.

4spd & 5spd "L" ratio set
4.697
2.841
1.629
1.000
0.898
R4.239

5speed "E", no 4 speed
3.785
2.171
1.413
1.000
0.855
R3.753

4 & 5 "K"
4.122
2.439
1.504
1.000
0.855
R4spd 3.820
R5spd 3.720

The big mutha of all boxes
MUA
All called the MUA5C
Until 1991 models, Constant mesh reverse gear.
3.767
2.314
1.404
1.000
0.809
R3.875

From 1992 Model, full syncro all gears.
3.767
2.248
1.404
1.000
0.809
R3.875

No weight, Oil capacity 2.95L.

Ive got the 4x4 ratios here as well if anyone wants them. They are mostly the same as the 2x4 ones.

Diff ratios. The Shuttle, Rodeo and Jackaroo share the same diff centres. Also shared to a certain point by the KB20 and the Chev Luv. Best we can figure the Piazza center is the same too.


the common KB/UBS Ratios
4.555
4.10
Possibly 4.777 in the 4x4

Theres also Shuttle
4.555
4.777
5.125 (real early model that we would never have seen)

The Piazza
3.9something

And the luv for 1978 in the US lists
3.73 for the manual 4x2
4.10 for the auto and 4x4.
That seems starnge to me id suspect it to be around the other way with the auto having the 3.73. It was the THM200 or better known as the trimatic. I will be interested to pull the diff out of my KB20 and see.

Cheers. Bob.
Piazza for sale, black, manual, in fair condition with heaps of parts $3500 (parts not for sale seperately)
DO NOT PRIVATE MESSAGE ME FOR ASSISTANCE, IM AN ASSHOLE YOU WILL GET AN EAR BASHING, ASK IN THE GENERAL FORUM.
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Post by gem_shane »

Rodeobob - Posted: Thu Oct 13, 2005 4:39 am

thats early man

^^ THAT IS POST WHORING.
We are cracking down on this (hard to believe aint it?)
s*#t like that is for off topic and maybe general. NOT for technical posts such as these.
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Poida
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Post by Poida »

My turn to post whore.

These ratios are from the Isuzu USB series manual (USB-WE-87G). Knowing these ratios will allow you to quickly determine if your gearbox is one from a Shuttle (WFR), Rodeo (K series) or Jackaroo (US series). The original engine each box was designed to match up with is also indicated.

MSG4L
KB/D C190/G161Z
4.697
2.841
1.629
1.00
4.239

MSG4K
KB/D.USB C223/G200Z
4.122
2.493
1.504
1.00
3.720

MSG4E
USB.KBD C223
3.785
2.165
1.413
1.00
3.720

MSG5L
KB/D C190/G161Z
4.697
2.841
1.629
1.00
0.898
4.239

MSG5K
KB/D.USB C223/G200Z
4.122
2.493
1.504
1.00
0.855
3.720

MSG5E
USB.KBD C223
3.785
2.165
1.413
1.00
0.855
3.720

MSG5W
WFS 4FD1
4.122
2.493
1.504
1.00
0.787
3.720

MUA - 4X4 BOX
3.767
2.314
1.404
1.00
0.809
3.875
HOTGEM
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Post by HOTGEM »

Hi
Can some one tell me the gear ratios for a Rodeo 1983 petrol 1800 4 speed gear box
Thanks i need it asap
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Post by Gem... »

hey i was wondering if TX geminis came with 5 speeds and wat gear ratios they would be?
mines a coupe and its 5 speed.
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Post by Buckna »

Gem... wrote:hey i was wondering if TX geminis came with 5 speeds and wat gear ratios they would be?
mines a coupe and its 5 speed.
lol, your lucky if your TX has a brake booster :lol:

none came with 5 speed/
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Post by Gem... »

so wat 5 speed box would i have in my TX coupe it was an auto in the start and i bought it as a 5 speed. wanna now the gaer ratios it would be, and how i would find out?
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Post by HOTGEM »

Hi
Iam looking for a Rodeo Gear Box with these ratios can anyone Help or can anyone tell me how to tell the differance from one box to the other :?:
From the 1981 Rodeo manual MSG box
4 & 5 speed Both "L" gear set
4.697
2.941
1.629
1.000
0.888
R4.277

or if you have one i will buy it :)

THANKS
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Post by ZD1T »

[Gregorys 214]
TF-TG petrol 5 Speed
3.790:1 - 1
2.175:1 - 2
1.417:1 - 3
1.000:1 - 4
0.855:1 - 5
3.826:1 - R

Piazza Turbo
3.431
1.963
1.364
1.000
0.775

correct me if i am wrong, but this would make a TG travel faster, at the same RPM if it had a piazza box yes?

my piazza box requires much more revs to do the same speed as a stock TG box in the same gear, i have tried both in my car

any ideas? it came out of a piazza and it had the steel sandwitch plate.
great for pulling skids tho
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Bugle
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Post by Bugle »

Yeah it would go faster for the same revs except for 4th ofcourse.

It's probably been replaced at some time with a late 80s box from a Rodeo or Shuttle, they also came with steel sandwich plates and fine spline output shafts.. If you look at the ratios bob posted above some of them are pretty bad.
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Post by ZD1T »

hmmm i was sure it was all stock, because gemzilla had exactly the same problem
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Post by GEMWRC »

Just a Comparison

Looks like A Rodeo box is How i remember it When I had One In A G200Z Panno All Takeoff Extremely low Ratio.. Then Gem Box followed By Diesel and Piazza Box..

Rodeo 5 Speed
5 speed
1 4.122:1
2 2.493:1
3 1.504:1
4 1.000:1
5 0.855:1
R 3.820:1


TF-TG petrol 5 Speed
3.790:1 - 1
2.175:1 - 2
1.417:1 - 3
1.000:1 - 4
0.855:1 - 5
3.826:1 - R


Diesel 5 speed
1st 3.48:1
2nd 1.99:1
3rd 1.36:1
4th 1.00:1
5th 0.86:1


Piazza Turbo
3.431
1.963
1.364
1.000
0.775


I have one of each of these at home.. Was gonna Try Piazza but sounds like its not a straight swap and This info tells me Diesel is Close So may as well swap to Diesel instead and Try To improve my drag time.. I normally have to change to 4th close to the line , hope fully this lets me hold 3rd ..
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Post by cecily »

All information that exist in posts is so valuable.and comprehensive also you describe a large quantity of knowledge here.
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