Landy Gearboxes
First, find your gearbox:
LT95 LT77 & LT85 R380
1 3 R 1 3 5 1 3 5
2 4 R 2 4 2 4 R
LT95 4 speed syncro, built in transfer box, perm 4x4, vacuum operated diff lock optional overdrive
- Range Rover manuals up to 1984
- Series III Stage 1 V8
- 101 Forward Control with shorter bellhousing
- Early 110 V8 up to 1985
LT85 5 speed "Santana", seperate LT230 transfer box
- V8 110
- V8 127/130
- V8 90 1985 onwards
LT77 5 speed with seperate LT230 transfer box LT77S as above but with "improved" syncromesh from 1991
- 90, 110, 127/130 - 2.25, 2.5 petrol/diesel, 2.5 turbo diesel, 200Tdi
- Range Rover "long stick" type 1983-1985 V8
- Range Rover "short stick" 1985 on, V8 / VM / 200Tdi
- Discovery 1989-1994, 200Tdi / V8 / Mpi
VM diesel Rangies and MPI Discos have unique bellhousings
R380 5 speed with seperate transfer box launched with the 300Tdi engine
- Defender 300Tdi / V8 / Td5 1993 - present
- Discovery 300Tdi / V8 / Mpi / Td5 1993 - end of Td5 Disco production
- Range Rover classic 300Tdi / V8 1993 - 1995
- Range Rover P38 diesel & V8 manuals
LT77/LT77S Manual Gearbox
Model
Box S/N
1st
2nd
3rd
4th
5th
Reverse
90/110 British Military
51A
3.985
2.519
1.5074
1.00
0.8314
3.701
90/110 pre' 200TDI
50A
3.585
2.3008
1.5074
1.00
0.8314
3.701
Disco 200TDI
90/110 200TDI
55A
56A
3.692
2.132
1.397
1.00
0.77
3.429
90/100 V8
Disco V8
60A, 61A
53A, 57A
3.321
2.132
1.397
1.00
0.77
3.429
The LT77 gearbox was used from 1983 to 1989 on 90/110s with 4 cylinder engines and 1990/91 on all 90/110s. LT77S were used all all Discoverys to 1993 and 90/110s during 1992/93. All of these boxes use a separate transfer case called the LT230 which is mounted directly onto the output flange of the gearbox.
R380 Manual Gearbox
Model Box Prefix/Suffix 1st 2nd 3rd 4th 5th Reverse
Defender 2.5NA (short bellhousing)
50J 3.700 2.300 1.507 1.00 0.831 3.701
Disco/RR 300TDI
Disco TD5
Defender 200TDI
Defender 300TDI
Defender TD5
55J
55H
56J
68L
3.692 2.132 1.397 1.00 0.770 3.429
Disco/RR V8i 53J 3.321 2.132 1.397 1.00 0.732 3.429
The R380 gearbox was used from 1994 to present on Defenders and Discoverys. All of these boxes use a separate transfer case called the LT230 which is mounted directly onto the output flange of the gearbox. Reverse is to the right and down. This box was brought in as a replacement for the LT77S. It is noted to be smoother shifting than its predecessor
LT85 Manual Gearbox
Gear
Ratio
1st 3.6497
2nd 2.1804
3rd 1.4362
4th 1.00
5th 0.7951
Reverse 3.8242
The LT85 gearbox was used from 1984 to 1991 on 90/110s with V8s and 1986 on for Isuzu diesels. All of these boxes use a separate transfer case called the LT230 which is mounted directly onto the output flange of the gearbox. This is normally referred to as the "Santana" gearbox as it was used on Santana Land Rovers.
LT95 Manual Gearbox
Gear
Ratio
1st 4.0691
2nd 2.4480
3rd 1.5049
4th 1.00
Reverse 3.6643
The LT95 gearbox was used from 1969 to 1983 on Range Rovers, all 101s, Stage Is and 90/110s with V8s in 1983/84 and 1985 with Isuzu diesels. All of these boxes use an integral transfer case. The transfer case is a "full time" units with a lockable, mechanical differential. The differential is locked via a vacuum actuator.. Note that the gearbox and transfer case use separate sumps.
ZF4HP22 Automatic Gearbox
Gear
Ratio
1st 2.48
2nd 1.48
3rd 1.00
4th 0.728
Reverse 2.086
LT230 Transfer Case
Gear
Ratio
Tooth Count
in/int/int/out
Models Used and Comments
Box S/N
Low Range 3.320 26/41/19/40 LT77, LT77S, LT85 13D, 22D, 28D
4.340 26/41/20/55 Maxi-Drive Engineering Low range gear set. Exact ratio
depends on input and intermediate gears that are used which vary slightly by model.
High Range 1.003 RR 3 speed auto (TF727)
1.222 26/41/40/31 LT77/LT77S 28D
1.1923 90 V8s with LT85 gearboxes 29D
1.211
1.206
1.410 26/41/?/? All 90s except V8
All 110s except 2.5/2.25l petrol and N/A diesel 13D, 22D
1.667 26/41/35/37 110s with 2.5/2.25l petrol and N/A diesel
The LT230 is an all gear transfer case. It has been used on all Defenders, Discoverys, pre' 1989 Range Rovers and 90/110s with LT77/LT77S/LT85/R380/ZF4HP22 gearboxes. The transfer case is a "full time" unit with a lockable, mechanical differential. The differential is locked via a mechanical linkage through a spring inside the box.
LT230 Gear Part Numbers
Box S/N
Input P/N,teeth
Intermediate,
low/drive/high
Low
High
13D FRC5428,26 FRC5424,19/41/? FRC5435,40 FRC5425,?
22D_suffix_B FRC5428,26 FRC7884,19/41/? FRC7434,40 FRC7885,?
29D suffix B FRC5428,26 FRC7428,19/41/? FRC7434,40 FTC7429,?
22D_suffix_C FRC8917,26 FRC9460,19/41/? FRC7434,40 FRC7885,?
29D suffix C FRC8917,26 FRC9552,?/?/? FRC7434,40 FRC9551,?
22D suffix E on ? ? FTC1741,40 ?
32D_to_LA939975 ? FRC9552,?/?/? FTC1084,? FTC1085,?
32D_from_MA939976 FTC4188,? FRC4190,?/?/? FTC1084,? FTC4189,?
LT95 (Transfer Case section)
Gear
Ratio
Tooth Count
Models Used
Low Range 3.3206 All
High Range 0.996 Australian Spec 110 with 4BD1 Isuzu Diesel
1.113
1.174 101FC
1.3362 110
All LT95 transfer gears are interchangeable. They can be changed with the gearbox on the vehicle.
