1989-1998 (Series 1)
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Land Rover Discovery Manual Gearbox
1989-1998 (Series 1) |
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Page Contents
Gearbox Identification
©Rimmer Bros Ltd - Registered in England No. 2155394. VAT No. GB 352 8473 40.
Introduction
Manual Gearbox Unit
Service Kits
Gaskets & Oil Seals
Gearlever Housing Kit
Reverse Light Switch
Gear Oil
We supply fully reconditioned manual gearboxes (and transfer boxes) from stock.
This section also includes a range of gearbox Service Kits, comprising the most commonly needed parts - synchro rings, bearings, oil seals & gaskets - for a straightforward gearbox overhaul. We have avoided listing every single component associated with manual gearboxes, because there is a point beyond which DIY gearbox repair is no longer cost-effective, and replacement with an off-the-shelf reconditioned unit would almost certainly be cheaper. Also, since gearboxes are large and fairly complex, replacement may prove simpler in the long run. Nevertheless, if there is an item which you require that is not listed, please contact our sales department.
To identify the type of gearbox/transfer box fitted to your Discovery, refer to the serial number stamped on the unit itself:
The 5-speed gearbox fitted to Discovery is either the LT77 unit or the R380, which replaced the LT77 in 1994. Both types of gearbox have identification numbers according to which engine they mate to, as follows:
57A - V8 carb
53A - V8 efi
55A - Tdi
59A - 2.0 Mpi
Then follows the serial number and finally, a suffix letter: D, E, F, G or H for LT77 and IJ & K for R380.
All gearboxes have a separate LT230T transfer boxes.
Gearbox Assembly;
New (N), Factory Recon (E), Aftermarket Recon (R).
Less transfer box, bellhousing & gear lever.
LT77 5-speed -
V8 Models
New - (1) - FRC6197N
Factory Recon - (1) - FRC6197E
Aftermarket Recon - (1) - FRC6197R
4 Cylinder Models
New - (1) - FRC8572N
Factory Recon - (1) - FRC8572E
Aftermarket Recon - (1) - FRC8572R
R380 5-speed -
V8 Models
Aftermarket Recon - (1) - RA1100R
4 Cylinder Models
2.0 Mpi
New - (1) - TRC103040
Factory Recon - (1) - TRC103040E
Aftermarket Recon - (1) - TRC103040R
200/300 Tdi
Aftermarket Recon - (1) - RA1101R
Service kits include the parts normally required to recondition a high-mileage gearbox - (main box) bearings, synchro rings, oil pump gears, oil seals & gaskets,and (transfer box) rear oil seal.
Service Kit;
LT77 5-speed -
Up to gearbox number 0132346D - (1) - RA1251
From gearbox number 0132347D to gearbox suffix F - (1) - RA1252
Gearbox suffixes F & G - (1) - RA1253
Gearbox suffix H - (1) - RA1254
R380 5-speed - (1) - RA1256
Gasket Set - LT77 - (1) - RTC6797
Oil Seal (front) -LT77 & R380 - (1) - UKC1060
Oil Seal - rear;
LT77 - (1) - ICV100000
R380 - (1) - FTC2383
Gearlever housing kits contain parts which are prone to wear, resulting in vague gear selection.
Gearlever Housing Kit;
LT77 - (1) - RA1259
Includes: Spherical nylon bush, oil seals, gaskets, lever springs, 2 x lower lever pins and plungers & springs.
R380 - (1) - RA1260
Includes: Lever springs, lower pins, spherical bush and oil seals.
Switch - reverse light;
LT77 - (1) - PRC2911
Located in lever housing.
R380 - (1) - AMR3918
Located in rear extension.
Locknut - reverse switch (LT77) - (1) - NT110041
Washer - reverse switch (R380) - (1) - 232042
Unipart (EP90) 0.5 litre - (ar) - GGL190
Unipart (ATF) 0.5 litre - (ar) - GGL175
Unipart (ATF) 5 litres - (ar) - GGL505
LUBRICANTS & CAPACITIES
LUBRICANT
CAPACITY
Main Gearbox
LT77
ATF
2.2 litres (3.9 pints)
R380
ATF
2.7 litres (4.7 pints)
4sp Auto (ZF)
ATF
9.1 litres (16 pints)
Transfer Gearbox
LT230T
EP90
2.8 litres (4.9 pints)
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The 'Triumph', 'Rover' and 'British Motor Heritage' Logos used herein are Registered Trade Marks of British Motor Heritage Ltd,
and are used with their Licence under the Special 'Heritage' approval Scheme.
All original part numbers & illustrations have been reproduced by kind permission of British Motor Heritage.