LR käigukastide ja vahekastide identifitseerimine

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landy
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Re: LR käigukastide ja vahekastide identifitseerimine

Postitus Postitas landy »

With regard to ratios, I copied this from http://www.syncrogearboxes.com/land-rov ... ox-ratios/:

Series Transfer case Ratios:


Transfer case
II, Suffix A & B
88 and 109
IIA suffix C on & III
88 and 109
109 1-Ton
IIA & III


High transfer
1.15:1
1.15:1
1.53:1


High transfer with 4.7 R&P
5.4:1 ( 3686 RPM @ 65mph*)
5.4:1 ( 3686 RPM @ 65mph*)
7.19:1 ( 4900 RPM @ 65mph*)


High transfer with 4.1 R&P
4.7:1 ( 3208 RPM @ 65mph*)
4.7:1 ( 3208 RPM @ 65mph*)
6.27:1 ( 4279 RPM @ 65mph*)


High transfer with 3.54 R&P
4.07:1 ( 2788 RPM @ 65mph*)
4.07:1 ( 2788 RPM @ 65mph*)
5.42:1 ( 3699 RPM @ 65mph*)


Low Transfer
2.89:1
2.35:1
3.27:1


Low transfer with 4.7 R&P
13.58:1
11.05:1
15.37:1


Low transfer with 4.1 R&P
11.85:1
9.64:1
13.41:1


Low transfer with 3.54 R&P
10.23:1
8.32:1
11.58:1




Main gearbox


Suffix A & B
Suffix C on
Ser. III
Ser. IIA & III
109 1-Ton


Fourth
1:1
1:1
1:1
1:1


Third
1.37:1
1.50:1
1.50:1
1.50:1


Second
2.04:1
2.22:1
2.22:1
2.22:1


First
3.00:1
3.60:1
3.68:1
3.60:1


Reverse
2.54:1
3.02:1
4.02:1
3.02:1
MTÜ Eesti Land Roveri Klubi
-----------------------------------
SERIES II A 109"( '70 )-"Tindiplekk" / LR90 ( '88 )- "Inetu Pardipoeg" + palju unistusi
Kristjan Vaarmann (+372)5010599 kristjan.vaarmann@landroverclub.ee
Land Rover'iga nakatatud ja mudas müttamas aastast 1996!
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landy
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Liitunud: R Juul 01, 2005 17:31
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Re: LR käigukastide ja vahekastide identifitseerimine

Postitus Postitas landy »

LT230 Transfer Box R Type & T Type

Thought of as the hero of Land Rover’s 4WD system thanks to its basic and robust engineering, the LT230 is the brand’s most prolific transfer box. Despite being put to the test with extreme off-roading and heavy towing, which in other, lesser vehicles would totally knacker the suspension, this sturdy transfer box seems to hold out against the odds – testament to its brilliant design and manufacturing.
How it works

The transfer box transfers the drive (from the gearbox) across and out at the front and rear of the transfer casing to drive the propshafts to the front and rear axles. Unlike the earlier transfer boxes on Series Land Rovers, which had rear-wheel drive and manually selectable front drive, the LT230 provides permanent drive to both axles, thanks to its integral differential.
History

The LT230 series Transfer Boxes were first introduced in 1983 with the LT77 5 Speed Gearbox range. Originally known as the LT230R, the design was updated in 1984 with a change to the Intershaft and Intermediate cluster to enable stronger Taper Bearings to be used. These later boxes are known as "T" type boxes (LT230T). Although there are some common parts to the two types of boxes, there are some items that are now either unavailable or expensive to obtain. The good news is that the LT230T type can be fitted as a unit in place of the original LT230R. This also makes good sense when you want to replace your spares. Click here for the largest range of transfer box parts. Check our picture below to find the serial number to identify your transfer box.

LT230 Transfer Box

The Serial number of the LT230 Transfer Box should be found either on the bottom side above sump by drain plug or sometimes on the end face, as per the examples above.

The LT230 unit has a serial number consisting of a prefix, 6 digit number, and suffix. This serial number will determine the type of box and ratio. The suffix will determine the approximate date of manufacture and gear design used. Below you will find a table showing most of the common variations.

But don’t worry, as if you are struggling to identify your transfer box, we can help - just contact us.
LT230 Transfer Box Serial Numbers
Prefix
Type Ratio
Typical Applications
12D
R 1.667
13D
R 1.410

14D
R 1.003
15D R

1.192

20D T 1.667
Defender 4 Cyl Non Tdi
22D
T 1.410
Defender 4 Cyl bar 2.5 Diesel Nat Asp.
25D
T 1.410
Defender 110 V8 With LT85 Gearbox
26D
T 1.003
RR Classic with 3 speed Chrysler Auto
27D
T 1.192
RR Classic up to 1985
28D
T 1.222
RR Classic 1986 0n & Disco 1
29D T
1.192
Defender 90 V8 with LT85 Gearbox
32D
T 1.222 4 Cyl & V8 3.5 fitted With LT77S Box
34D
T 1.410 Discovery V8 & 2.0 Mpi
36D
Q 1.211 Discovery
37D Q


Discovery
38D
Q
1.211
Defender V8 4.0
40D Q 1.211
Japan / South Africa
41D
T 1.211 Disco 2 With Diff Lock Stud
42D T 1.211

43D
1.410
Defender TD5
MTÜ Eesti Land Roveri Klubi
-----------------------------------
SERIES II A 109"( '70 )-"Tindiplekk" / LR90 ( '88 )- "Inetu Pardipoeg" + palju unistusi
Kristjan Vaarmann (+372)5010599 kristjan.vaarmann@landroverclub.ee
Land Rover'iga nakatatud ja mudas müttamas aastast 1996!
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landy
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Liitunud: R Juul 01, 2005 17:31
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Re: LR käigukastide ja vahekastide identifitseerimine

Postitus Postitas landy »

LT 230 Vahekasti spidomeetri ajami hammsratstest
23 tooth drive gear (red)
21T (green) drive gear - FRC3311.
20T (blue) gear - FRC3310
-----------
2.0:1 with a 20 tooth

2.1:1 with a 21 tooth

2.2:1 with a 22 tooth
MTÜ Eesti Land Roveri Klubi
-----------------------------------
SERIES II A 109"( '70 )-"Tindiplekk" / LR90 ( '88 )- "Inetu Pardipoeg" + palju unistusi
Kristjan Vaarmann (+372)5010599 kristjan.vaarmann@landroverclub.ee
Land Rover'iga nakatatud ja mudas müttamas aastast 1996!
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landy
Site Admin
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Postitusi: 10074
Liitunud: R Juul 01, 2005 17:31
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Re: LR käigukastide ja vahekastide identifitseerimine

Postitus Postitas landy »

From: http://www.ashcroft-transmissions.co.uk

LT 230 Ratios

12D = 1.667

13D = 1.410

14D = 1.003

15D = 1.192

20D = 1.667

21D = 1.667

22D = 1.410

25D = 1.410

26D = 1.003

27D = 1.192

28D = 1.222

29D = 1.192

32D = 1.222

36D = 1.211

37D = 1.211

38D = 1.211

40D = 1.211

41D= 1.211

43D = 1.410

47D = 1.667

57D = 1.410

59D = 1.211

61D = 1.211

62D = 1.211

68D = 1.211

69D = 1.211

70D = 1.211

80D = 1.211

81D = 1.211
MTÜ Eesti Land Roveri Klubi
-----------------------------------
SERIES II A 109"( '70 )-"Tindiplekk" / LR90 ( '88 )- "Inetu Pardipoeg" + palju unistusi
Kristjan Vaarmann (+372)5010599 kristjan.vaarmann@landroverclub.ee
Land Rover'iga nakatatud ja mudas müttamas aastast 1996!
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