Page Contents
Gearbox & Gearbox/Overdrive Units
Speedo Drive Cables
Clutch Housing/Operation
Gearbox Case/Extension & Speedo drive
Gearbox Gasket Set & Overhaul Kit
Mainshaft & Drive Flange
Constant Pinion & Mainshaft Gears
Countershaft/Reverse Gear & Operating Lever
Top Cover/Extension & Selector Levers
Gear Lever & Fittings
'A' Type Overdrive & Fittings
'J' Type Overdrive & Fittings
Type 35 Auto Gearbox
Bell Housing & Torque Convertor (Type 35)
Oil Cooler & Fittings (Type 35)
Dipstick & Breather Pipe (Type 35)
Rear Oil Seal - Speedo Drive/Cable & Kick Down Cable (Type 35)
Front Oil Seal - Inhibitor Switch - Sump & Parking Mechanism (Type 35)
Gasket & Service Kits (Type 35)
Gear Selector (Type 35)
Type 65 Auto Gearbox
Bellhousing - Dipstick & Torque Convertor (Type 65)
Oil Cooler & Fittings (Type 65)
Front Oil Seal - Kickdown Cable - Inhibitor Switch & Breather Pipe (Type 65)
Rear Oil Seal - Drive Flange & Speedo Drive (Type 65)
Parking Mechanism & Oil Pump (Type 65)
Gasket Set & Service Kits (Type 65)
Gear Selector (Type 65)
Propshaft
Differential Assembly
Differential Mountings & Rear Cover
Crown Wheel & Pinion and Differential Gears
Front Extension & Quill Shaft
Inner Axle Shafts
Outer Drive Shaft & Rear Hub
Gearbox & Gearbox/Overdrive Units
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How To Identify Your Gearbox
Manual/Overdrive Gearbox
(1970 to 1973 - to LD21230)
'A' type Overdrive.
How to Identify - Overdrive unit has bolt-on solenoid & a brass sump plug.
(1973 onwards - from LD21231)
'J' type Overdrive.
How to Identify - Overdrive unit has Finned sump with screw-on solenoid.
Automatic Gearbox
(1970 to 1976 - to LD41993)
Type 35 Borg-Warner gearbox.
How to Identify - Output drive/propshaft is Splined.
(1976 onwards - from LD41994)
Type 65 Borg-Warner gearbox.
How to Identify - Output drive/propshaft is Flanged.
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Gearbox Units
Non-Overdrive type Gearbox - (1) - RS1062R
Our reconditioned Exchange Gearbox units are supplied less:-
Clutch operating components, speedo pinion/housing, gear lever, reverse light switch, drive flange & ancillaries.
Overdrive type Gearbox (Less overdrive);
Our Reconditioned Exchange Gearbox units are supplied less:-
Clutch operating components, speedo pinion/housing, gear lever, reverse light switch, drive flange, overdrive adaptor plate, and ancillaries./format/lgmultipartpart
for 'A' type overdrive - (1) - RS1060R
for 'J' type overdrive - (1) - RS1061R
Unipart EP90 gear oil (0.5 litre) - (ar) - GGL190
Gearbox & Overdrive units
Our Reconditioned Exchange Gearbox & Overdrive units are supplied assembled but less:-
Clutch operating components, speedo pinion/housing, gear lever reverse light switch, solenoid, drive flange, brackets, wiring & ancillaries.
Gearbox & 'A' type overdrive - (1) - RS1063R
Gearbox & 'J' type overdrive - (1) - RS1064R
Unipart EP90 gear oil (0.5 litre) - (ar) - GGL190
Overdrive units only
Our Reconditioned Exchange Overdrive units are supplied less:-
Solenoid, wiring, drive flange, speedo pinion/housing & adaptor plate.
'A' type Overdrive - (1) - 311772R
'J' type overdrive - (1) - 312377R
Unipart EP90 gear oil (0.5 litre) - (ar) - GGL190
Gearbox Mounting Rubbers
Mounting kit (Gearbox/Engine) - (1) - RS2003
Kit includes 2 engine & 2 gearbox mounting rubbers.
Gearbox mounting rubber - (2) - 150403
Wiring harness (Overdrive operation);
on Gearbox -
for 'A' type overdrive - (1) - 150669
for 'J' type overdrive - (1) - 160294
in gear lever - (1) - 153726
Speedo Drive Cables
Speedo drive cable;
Manual (Non-overdrive);
RHD models - (1) - 217288
LHD models - (1) - 217286
Manual (Overdrive);
for 'A' type overdrive;
RHD models - (1) - 217288
LHD models - (1) - 217286
for 'J' type overdrive;
RHD models - (1) - 219167
LHD models - (1) - 219168
Automatics (type 35 & 65);
RHD models - (1) - GSD311
LHD models - (1) - GSD289
Clutch Housing/Operation
Clutch release bearing - (1) - GRB211
Clutch kit - (1) - GCK267
Kit includes Cover, Plate & Release Bearing.
Clutch alignment tool - (1) - RX1389
Carrier/Sleeve (Release bearing) - (1) - 154976
Dowel (Sleeve locating) - (1) - DS812
Front nose cover - (1) - 154975
Clutch fork (Release bearing) - (1) - 106022
Pin - Clutch fork - (2) - 100164
Spring - (1) - 144578
Tapered pin/bolt - (1) - 158777
Use wire to lock & secure.
Cross shaft - (1) - 150709
Bush (Cross shaft) - (2) - 137651
Clevis pin - (1) - PJ8808
Washer - (1) - GHF301
Split pin - (1) - PC10
Clutch Operation/Drag
Clutch drag is the result of insufficient pressure plate lift to completely free the drive plate when the clutch pedal is operated. Contributory factors are; insufficient travel of the slave cylinder push rod, oil contamination, excessive 'run out' of the driven plate facings (buckled), or, in certain circumstances excessive length of the clutch mounting bolts. Also, rough operation and/or misalignment of the release bearing can subject the clutch to high frequency vibration and rapid wear of the internal parts making the clutch inoperative. To establish if the fault is hydraulic or mechanical, the movement of the slave cylinder pushrod must be checked, it must be at least 16mm. If this measurement is achieved then the cause is mechanical lost movement, therefore, after gearbox removal the following points should be checked.
1) Examine the gearbox mounting holes for wear or ovality which may allow the gearbox to drop from its original mounted position causing misalignment of the release bearing.
2) The clutch release bearing carrier must be a snug fit on the front cover nose with no tight spots or excessive play. The carrier groove should be unworn, particularly on the front face where it is contacted by the clutch fork trunions.
3) The clutch fork must be held securely to the withdrawal shaft by the locking bolt, no play whatsoever is permissible at this point. The release fork trunnions should be round and unworn.
4) Carefully examine the cross shaft bearings for wear or lack of lubrication, particularly on the withdrawal arm side.
5) Check the release bearing, which must revolve smoothly while being turned under firm pressure between the hands.
6) Examine the pilot bearing carefully, looking for wear or 'bellmouthing', however slight.
Should any component be found unserviceable, then the parts must be replaced. Before re-assembly ensure that the clutch plate moves freely on the splined shaft, at the same time revolve the plate to check for excessive 'run out' of the facings. Lightly smear the the front cover nose and the clutch fork trunnions with copaslip or similar.
Where a Borg & Beck clutch is fitted as service replacement for a Laycock assembly, due to the difference in mounting flange thickness of the two types, the mounting bolts must be shortened to a length not exceeding 19mm under the head, otherwise the bolts may bottom in the holes and leave the Borg & Beck clutch loose on the flywheel.
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Gearbox Case/Extension & Speedo drive
Gearbox case - (1) - 216303
Gasket (Case to extension) - (1) - 132465
Included in gearbox gasket set & gearbox overhaul kit.
Gasket set (Gearbox) - (1) - 515121
Includes all necessary gearbox gaskets.
Front nose cover - (1) - 154975
Carrier/Sleeve (Release bearing) - (1) - 154976
Oil seal (front nose/input) - (1) - 141756
Gasket (Front nose cover) - (1) - 59537
Included in gearbox gasket set & gearbox overhaul kit.
Setscrew (Wedglok) - (4) - 155541
Washer - plain - (4) - 500469
For setscrew 155542.
End plate (Countershaft) - (1) - 55773
Gasket (End plate) - (1) - 55774
Included in gearbox gasket set & gearbox overhaul kit.
setscrew (Wedglok) - (2) - 155542
Countershaft end plate to case.
Washer - plain - (2) - 500469
For setscrew 155542.
Bush (Cross shaft, clutch operating) - (2) - 137651
Oil filler plug - (1) - 22G2115
Oil drain plug (Magnetic) - (1) - 155660
Bolt (Gearbox locating);
Short (1.5") - (9) - GHF104
Long (3") - (1) - BH605241
Washer - spring (for bolt GHF104) - (10) - GHF332
Nut (for bolt GHF104) - (10) - GHF201
Bolt (Gearbox locating) - (2) - GHF106
Washer - spring (for bolt GHF106) - (2) - GHF332
Bolt (Gearbox locating) - (2) - BH606141
Washer - spring (for bolt BH606141) - (2) - GHF333
Rear extension (Non-overdrive) - (1) - 137621
Oil seal (Rear, non-overdrive) - (1) - 146129
Setscrew (Wedglok) - (6) - 155541
Extension to gearbox case.
Washer - spring - (6) - GHF332
Speedo drive (Non-overdrive) - (1) - 136421
'O' ring (Non-overdrive) - (1) - 138708
Bearing (Non-overdrive) - (1) - 138119
Oil seal (Non-overdrive) - (1) - NKC105A
Connector/bracket (Non-overdrive) - (1) - NKC43
Connector is threaded for speedo angle drive 'take off'.
Setscrew (for bracket NKC43) - (1) - SH604071
Washer - spring - (1) - GHF331
Washer - plain - (1) - WC701121
Gearbox Gasket Set & Overhaul Kit
Gasket set (Gearbox) - (1) - 515121
Includes the following gearbox gaskets;
Front nose cover (59537), Countershaft end plate (55774), Rear (to extension/overdrive) case (132465) and Top remote cover to case 105758).
Gearbox overhaul kit - (1) - RS1066
Includes the following gearbox parts;
2 needle roller bearings (158368), 1 gasket set (515121), 4 synchro rings (113431), 2 mainshaft bearings (58391), 1 front cover oil seal (141756), 1 countershaft 152757)
1 countershaft front bearing (150339), 1 circlip (55707), 1 reverse idler gear (128110), 2 circlips (58956), 2 (mainshaft) snap rings (58955) and 1 rear oil seal
(146129 & NKC39A supplied).
Mainshaft & Drive Flange
NOTE: Illustration shows Non-Overdrive Drive Flange.
Mainshaft;
Non-overdrive models - (1) - TKC743
for 'A' type overdrive - (1) - 216868
for 'J' type overdrive - (1) - TKC832
Bearing (Mainshaft rear) - (1) - 58391
Included in gearbox overhaul kit RS1066.
Snap ring - (1) - 58955
Included in gearbox overhaul kit RS1066.
Thrust washer - (1) - 59443
Circlip - (1) - 58956
Included in gearbox overhaul kit RS1066.
The following parts are for Non-overdrive models only.
Speedo drive gear - (1) - 139031
Circlip - (1) - 514052
Washer - (1) - 58949
Bearing - (1) - 513897
Drive flange - (1) - 138872
Washer/spacer - (1) - WP24
Nut (Nyloc) - (1) - 157642
Constant Pinion & Mainshaft Gears
Gasket set (Gearbox) - (1) - 515121
Gearbox overhaul kit - (RS1066) -
Needle roller bearing - (1) - 158368
Included in gearbox overhaul kit RS1066.
Synchro ring - (1) - 113431
Included in gearbox overhaul kit RS1066.
Constant pinion (Input) Shaft (4th gear);
to LD5818 - (1) - 216869
from LD5819 - (1) - 219125
Washer (Inner) - (1) - 60658
Bearing - (1) - 58391
Included in gearbox overhaul kit RS1066.
Snap ring - (1) - 58955
Included in gearbox overhaul kit RS1066.
Washer (Outer) - (1) - 60078
Circlip - (1) - 58956
Included in gearbox overhaul kit RS1066.
Synchro ring - (1) - 113431
Included in gearbox overhaul kit RS1066.
Thrust washer (*);
0.118" - (ar) - 129941
0.121" - (ar) - 129942
0.124" - (ar) - 129943
0.127" - (ar) - 129944
0.132" - (ar) - 134670
Gear (2nd speed);
The later gear (TKC454) can be fitted to all model when using the corresponding bush (UKC956).
to LD7886 - (1) - 152771
from LD7887 - (1) - TKC454
Bush (2nd speed gear);
The later bush (UKC956) can be fitted to all models when using the corresponding gear (TKC454).
to LD7886 - (1) - 153237
This early non-flanged bush must only be used in conjunction with the original spacer washer (153239).
from LD7887 (Flanged) - (1) - UKC956
Spacer washer - (1) - 153239
Use with non-flanged 2nd gear bush (153237).
Gear (3rd speed) - (1) - 152772
Bush (3rd speed gear) - (1) - 153238
Synchro ring - (1) - 113431
Included in gearbox overhaul kit RS1066.
Thrust washer - (1) - 157054
Circlip - (1) - 55707
Included in gearbox overhaul kit RS1066.
Synchro hub (3rd/4th) - (1) - 153844
Ball bearing - (3) - BLS108
Tension spring - (3) - 153318
Washer - (1) - 116496
Gear (1st speed) - (1) - 152803
Bush (1st speed gear) - (1) - 153238
Thrust washer (*);
0.118" - (ar) - 129941
0.121" - (ar) - 129942
0.124" - (ar) - 129943
0.127" - (ar) - 129944
0.132" - (ar) - 134670
Synchro ring - (1) - 113431
Included in gearbox overhaul kit RS1066.
Synchro hub (1st/2nd) - (1) - 153843
Ball bearing - (3) - BLS108
Tension spring - (3) - 153318
Countershaft/Reverse Gear & Operating Lever
Countershaft & Laygear
Thrust washer (Rear/outer) - (1) - 154554
Thrust bearing - (1) - 141306
Thrust washer (Rear/inner) - (1) - 142386
Needle roller bearing - (1) - 158368
Included in gearbox overhaul kit RS1066.
Collar - (1) - 154397
Countershaft (Laygear) - (1) - 216558
Gear (2nd) - (1) - 155047
Gear (3rd) - (1) - 140509
Bush - (1) - 59456
Gear (4th);
to LD5818 - (1) - 142434
from LD5819 - (1) - 159621
Collar (for bearing 150339) - (1) - 154396
Bearing (Torrington) - (1) - 150339
Included in gearbox overhaul kit RS1066.
Collar - (1) - 154782
Thrust washer - (2) - 154783
Thrust bearing - (1) - 153346
Laypin - (1) - 152757
Countershaft & Laygear
Reverse gear - (1) - 128110
Bush only (Reverse gear) - (1) - 129862
Spindle (Reverse gear) - (1) - 129937
Operating lever (Reverse) - (1) - 129894
Fulcrum pin (Threaded both ends) - (1) - 106448
Washer - (1) - GHF333
Nut (Nyloc) - (1) - TN3209
Keep plate (Idler) - (1) - 129938
Screw (for keep plate 129938) - (1) - 129954
Top Cover/Extension & Selector Levers
Top cover/extension (Bare) - (1) - TKC1000
Switch;
Overdrive inhibitor - (1) - BAU1074A
Reverse light - (1) - BAU1074A
Washer (Switch to case) - (ar) - 502146
Bracket (Reverse light switch) - (1) - 139387
Gasket (Cover to case) - (1) - 105758
Included in gearbox gasket set & gearbox overhaul kit.
Bolt - (2) - HB874
Washer - spring - (2) - GHF332
Bolt - (4) - 56370
Washer - spring - (4) - GHF332
Bolt - (2) - BH505201
Washer - spring - (4) - GHF332
End plug (Front) - (3) - 104449
End plug for selector rods.
Core plug;
Side/Front - (1) - 104449
Side/Rear - (1) - 54505
Cover plate (Selector rods) - (1) - 106051
Setscrew - (2) - SH604041
Washer - spring - (2) - GHF331
Sealing ring - (3) - 106050
Steady strap (Top cover) - (1) - 160189
Nut - (2) - GHF201
Washer - spring - (2) - GHF332
Washer - plain - (1) - GHF301
Selector rod (1st/2nd) - (1) - 128066
Actuator (1st/2nd) - (1) - 127386
Pinch bolt (Actuator) - (1) - 122653
Detent spring - (1) - 155632
Ball bearing - (1) - BL24
Plug (Detent spring) - (1) - 156665
Selector fork (1st/2nd) - (1) - 128067
Pinch bolt (Fork) - (1) - 122653
Sleeve (1st/2nd) - (1) - 128063
Selector rod (3rd/4th) - (1) - 156373
Dowel - (1) - 105788
Detent spring - (1) - 155632
Ball bearing - (3) - BL24
Plug (Detent spring) - (1) - 156665
Selector fork (3rd/4th) - (1) - 127387
Pinch bolt (Fork) - (1) - 122653
Sleeve (3rd/4th) - (1) - 117811
Selector rod (Reverse) - (1) - 209902
Actuator (Reverse) - (1) - 127385
Pinch bolt (Actuator) - (1) - 122653
Detent spring - (1) - 22G2198
Plunger (Top) - (1) - 136990
Spacer - (1) - 109401
Plug (Detent spring) - (1) - 156665
Selector fork (Reverse) - (1) - 129780
Pinch bolt (Fork) - (1) - 122653
Sleeve (3rd/4th) - (1) - 129779
Gear Lever & Fittings
Overdrive Models
Gear lever knob/switch - (1) - 153515
Cap only - (1) - 153515C
Switch only - (1) - 520999A
Locking nut * (Plain) - (1) - C30623
Washer * (Star) - (1) - WE600071
* Locking nut & washer are located inside gear lever knob.
Cone/Chrome nut - (1) - C30505
Inhibitor switch - (1) - BAU1074A
Wiring harness (Gear lever) - (1) - 153726
Harness fits inside overdrive gear lever 153447.
Wiring harness (Overdrive operation);
Located on gearbox-
for 'A' type overdrive - (1) - 150669
for 'J' type overdrive - (1) - 160294
Non-Overdrive Models
Gear lever knob - (1) - UKC4814
Retaining nut - (1) - NT605041
All Models
Gear lever;
Non-overdrive - (1) - 155271
Overdrive models - (1) - 153447
Gaiter (Gear lever);
Rubber - (1) - 715382
Fabric -
Black - (1) - 729511BLACK
Beige - (1) - 729511BEIGE
Blue - (1) - 729511BLUE
Chestnut - (1) - 729511CHESTNUT
Red - (1) - 729511RED
Tan - (1) - 729511TAN
Leather -
Black - (1) - RS1636BLACK
Chestnut - (1) - RS1636CHESTNUT
Red - (1) - RS1636RED
Blue - (1) - RS1636SBLUE
Tan - (1) - RS1636TAN
Beige - (1) - RS1636BEIGE
Retaining ring;
for Rubber gaiter - (1) - 613607
for Fabric/Leather gaiter - (1) - 626949
Self tapping screw;
for Rubber gaiter - (4) - YZ3404
for Fabric/Leather gaiter - (7) - TH4303
Spire clip (Rubber gaiter only) - (4) - GHF712
Tension cap (spring) - (1) - 156460
Bolt (Tension cap) - (1) - SH604031
Washer - spring - (1) - GHF331
Retainer (Spring) - (1) - 112442
Spring - (1) - 145796
Locating pin (Threaded) - (1) - 156408
Nut (Nyloc) - (2) - 155299
Spring (Anti-rattle) - (1) - 137988
Plunger (Anti-rattle spring) - (1) - 112424
Reverse light switch - (1) - BAU1074A
Washer (Switch to casing) - (ar) - 502146
'A' Type Overdrive & Fittings
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How To Identify Your Overdrive
Manual/Overdrive Gearbox
(1970 to 1973 - to LD21230)
'A' type Overdrive.
How to Identify - Overdrive unit has bolt-on solenoid & a brass sump plug.
(1973 onwards - from LD21231)
'J' type Overdrive.
How to Identify - Overdrive unit has Finned sump with screw-on solenoid.
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DIY Overdrive Rebuilds
Overdrive units really do require specialist knowledge to dismantle and rebuild, and are normally beyond the ability of the DIY enthusiast, we therefore strongly recommend the fitting of a reconditioned exchange unit. We have illustrated the overdrive components to help you identify them and, to see how they are located should you still wish to recondition your own overdrive unit.
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Overdrive Unit
Our Reconditioned Exchange Overdrive units are supplied less: Solenoid, wiring, drive flange, speedo pinion/housing & adaptor plate.
Overdrive unit only ('A' type) - (1) - 311772R
NOTE: You must ensure your gearbox is cleaned internally to avoid cross contamination of old oil before fitting overdrive.
Adaptor plate - (1) - 208098
Output/drive flange - (1) - 58948
Solenoid - (1) - 109521
Wiring harness (Overdrive operation) - (1) - 150669
Located on gearbox.
Wiring harness (Gear lever) - (1) - 153726
Located in gear lever.
Unipart EP90 gear oil (0.5 litre) - (ar) - GGL190
Gasket Set (Overdrive Unit)
Gasket set - (1) - RS1598
Gasket set contains the following gaskets:-
Main overdrive case to Adaptor plate (502556). Adaptor plate to Gearbox (132465). Solenoid housing to case (500645). Solenoid to housing (110867). Solenoid cover plate (518113).
Main Case & Adaptor Plate
Adaptor plate (Overdrive to gearbox) - (1) - 208098
Gasket set (Overdrive) - (1) - RS1598
Gasket;
Adaptor plate to gearbox - (1) - 132465
Adaptor plate to overdrive - (1) - 502556
Stud - (2) - TE605111
Solenoid housing to main case.
Stud (Adaptor plate to main case);
Short - (4) - FHS2510
Long - (2) - 500576
Washer - spring - (6) - GHF332
Nut - (6) - GHF201
Bridge piece - (1) - 500587
Washer (Special - bridge piece) - (4) - JS616A
Nut (Bridge piece) - (4) - GHF200
Piston (Operating) - (2) - 513890
'O' ring (Piston) - (2) - 513912
Pump cam - (1) - 500627
Guide - (1) - 268112
Dowel (Mills pin) - (1) - 513888
Lever - External (Adjustment) - (1) - 513909
Cam - Internal (Locates on shaft) - (1) - 513910
Locking pin (Cam to shift) - (1) - 500593
Main case - (1) - 516009
Plug (Operating lever) - (1) - 268095
Washer - (1) - 3H693
Spring - (1) - 506070
Plunger - (1) - 500591
Ball bearing - (1) - BLS110
Operating valve - (1) - 500658
Plunger - (1) - 513891
Spring - (1) - 500633
Body (Oil pump) - (1) - 505507
Plug - (1) - 513902
Screw - (2) - PX504
Filter - (1) - 516010
Magnet - (1) - 513205
Washer - (1) - 500641
Sump plug - (1) - 513904
Spanner (Sump plug) - (1) - TMG4901
Thrust washer - (1) - 500610
Adjusting washer;
0.113" / 0.114" - (ar) - 500588A
0.107" / 0.108" - (ar) - 500588B
0.101" / 0.102" - (ar) - 500588C
0.095" / 0.096" - (ar) - 500588D
0.089" / 0.090" - (ar) - 500588E
0.083" / 0.084" - (ar) - 500588F
0.077" / 0.078" - (ar) - 500588G
Solenoid & Accumulator
Accumulator - (1) - 501864
'O' ring (Locates on accumulator) - (1) - 501910
Piston (Accumulator) - (1) - 501909
Ring set (Accumulator) - (1) - 505555
Spacer tube (Accumulator) - (1) - 502563
Spring (Spacer tube) - (1) - 518601
Washer (Spacer tube) - (ar) - 513900
Plug - (1) - 268095
Washer - (1) - 3H693
Spring - (1) - 506070
Plunger - (1) - 500591
Ball bearing - (1) - BLS108
Solenoid - (1) - 109521
Plunger only - (1) - 109521P
Gasket (Solenoid to housing) - (1) - 7H8196
Screw (Solenoid to housing) - (2) - 53K126
Washer - (2) - WL205
Housing - (1) - 518111
Gasket (Housing to case) - (1) - 500645
Washer - spring - (2) - GHF332
Nut - (2) - GHF201
Setscrew - (1) - 103268
Washer - plain - (1) - GHF301
Lever (Actuating) - (1) - 513905
'O' ring (Operating shaft) - (2) - 500594
Collar - (1) - 502567
Setscrew - (1) - SH604091
Washer - plain - (1) - WP127
Nut - (1) - 503164
Cover plate - (1) - 518112
Gasket (Cover plate to housing) - (1) - 518113
Screw (Cover plate) - (4) - TF2504
Washer - (4) - 503166
Clutch & Brake Ring
Cone clutch assembly - (1) - 518107R
Brake ring - (1) - 502555
Circlip (Large) - (1) - 500637
Bearing - (1) - 608255
Ring assembly - (1) - 513886
Spring (Set of 8 springs) - (1 set) - 502554
Circlip (Small) - (1) - 500636
Sunwheel & Planet Carrier
Adjusting washer;
0.146" - (ar) - 500623E
0.151" - (ar) - 500623F
0.156" - (ar) - 500623G
0.161" - (ar) - 500623H
0.166" - (ar) - 500623J
Bearing - (1) - SP74G
Annulus - (1) - 513884
Thrust washer - (1) - 500613
'Sprag' bearing (1 way) - (1) - BAU2061A
Complete assembly includes Rollers & Spring clip.
Snap ring/spring - (1) - 513208
Rollers (set of 12) - (1) - 506063
Planet carrier - (1) - 505545
Thrust washer - (1) - 548076
Sun wheel - (1) - 505549
Rear Case - Speedo Drive & Cable
NOTE: The 'A' type rear case was designed to fit directly to the main case without a sealing gasket, making it prone to oil leaks. We recommend you use 'Wellseal' (sparingly) on the metal faces to create a seal, whilst being careful not to let it enter the overdrive unit.
Rear case - (1) - 513892
Stud (to main case);
Upper - (4) - 500756
Lower - (2) - 500579
Washer - spring - (6) - GHF332
Nut - (6) - GHF201
Bearing (Output) - (1) - 513897
Oil seal - (1) - 146129
Output/drive flange - (1) - 58948
Washer - plain - (1) - WP24
Nut (Castle headed) - (1) - 57868
Split pin - (1) - PC12
Angle drive (Speedo) - (1) - 120694
Speedo drive cable;
for 'A' Type Overdrive -
RHD models - (1) - 217288
LHD models - (1) - 217286
Washer - (1) - 146541
Bearing assembly - (1) - 146542
Seal - (1) - NKC105A
Bolt - (1) - 107746
Washer - spring - (1) - 500469
Speedo drive pinion;
18 teeth - (1) - 153311
15 teeth - (1) - 154015
'J' Type Overdrive & Fittings
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How To Identify Your Overdrive
Manual/Overdrive Gearbox
(1970 to 1973 - to LD21230)
'A' type Overdrive.
How to Identify - Overdrive unit has bolt-on solenoid & a brass sump plug.
(1973 onwards - from LD21231)
'J' type Overdrive.
How to Identify - Overdrive unit has Finned sump with screw-on solenoid.
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DIY Overdrive Rebuilds
Overdrive units really do require specialist knowledge to dismantle and rebuild, and are normally beyond the ability of the DIY enthusiast, we therefore strongly recommend the fitting of a reconditioned exchange unit. We have illustrated the overdrive components to help you identify them and, to see how they are located should you still wish to recondition your own overdrive unit.
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Overdrive Unit & Adaptor Plate
Our Reconditioned Exchange Overdrive units are supplied less: Solenoid, wiring, drive flange, speedo pinion/housing & adaptor plate.
Overdrive unit only ('J' type) - (1) - 312377R
NOTE: You must ensure your gearbox is cleaned internally to avoid cross contamination of old oil before fitting overdrive.
Adaptor plate - (1) - 312305
Gaskets;
Adaptor plate to gearbox - (1) - 132465
Adaptor plate to overdrive - (1) - 37H1901
Washer - (8) - GHF333
Nut - (8) - GHF200
Output/drive flange - (1) - 160292
Wiring harness (Overdrive operation) - (1) -
