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Triumph 2000/2500 Manual Gearbox |
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Page Contents
Clutch Housing & Operating System
Gearbox (Manual) Reconditioning Kits
Overdrive & Fittings - 'A' Type
Overdrive & Fittings - 'J' Type
©Rimmer Bros Ltd - Registered in England No. 2155394. VAT No. GB 352 8473 40.
Manual Gearbox Assembly
Clutch Housing & Operating System
Gear Lever
Gearbox Gaskets & Oil Seals
Mainshaft
Gearbox (Manual) Reconditioning Kits
Mainshaft & Input Gears
Reverse & Countershaft Gears
Overdrive & Fittings - 'A' Type
Overdrive & Fittings - 'J' Type
Overdrive Electrics
Speedo Cables
Note: Exchange Units.
All our gearboxes/overdrive units are supplied on a strict 'LIKE for LIKE' exchange basis.
IE: 'Non-overdrive' gearbox for 'Non-overdrive' gearbox.
Your old exchange unit(s) MUST be in a undamaged and serviceable (not dismantled) condition, and all fluids/oils must be drained BEFORE being returned to us for refund of exchange surcharge. We reserve the right to retain all, or part of the exchange surcharge if the above conditions are not met.
Please ensure you are ordering the correct part and that your old unit is complete, assembled & serviceable.
Gearbox Only - Recon;
Less rear extension housing and clutch operating ancillaries.
Non Overdrive Type - (1) - RM8016R
Overdrive Type -
Less overdrive, spacer housing and clutch operating ancillaries.
'A' Type Output Shaft - (1) - RM8039R
'J' Type Output Shaft - (1) - RM8024R
NOTE: Please ensure that you thoroughly clean your overdrive unit internally
(to avoid cross contamination of dirty oil before fitting to gearbox).
Gearbox & Overdrive - Recon;
Less solenoid, clutch operating ancillaries, output flange, mounting brackets, gear lever and wiring.
Gearbox & 'A' Type Overdrive - (1) - RM8133R
Gearbox & 'J' Type Overdrive - (1) - RM8062R
Unipart EP90 Gear Oil (0.5 litre) - (ar) - GGL190
2.0 litres required for gearbox + 'A' type overdrive.
1.5 litres required for gearbox + 'J' type overdrive.
1.2 litres required for non overdrive gearbox.
Clutch Cross Shaft - (1) - 136354
Bush (bellhousing/cross shaft) - (2) - 137651
Clevis Pin (cross shaft/push rod) - (1) - PJ8808
Split Pin (clevis pin) - (1) - PC10
Clutch Operating Fork - (1) - 140937
Bolt - Tapered (fork retaining) - (1) - 158777
Fork Spring - (1) - 144578
Slipper Pad (fork) - (2) - 159003A
Carrier/Sleeve (release bearing) - (1) - 160156
Dowel (for 160516) - (1) - DS812
Nose Extension/Front Cover - (1) - 116299
Carries release bearing carrier.
Oil Seal (nose extension) - (1) - 141756
Keep Plate - (1) - 55774
Gasket - (1) - 55773
Filler Plug (gearbox) - (1) - 22G2115
Drain Plug (gearbox) - (1) - 155660
Rubber Gaiter - (1) - 708311
Locating Plunger (lever) - (1) - 112424
Spring for Plunger - (1) - 137988
Gear Knob - Non Overdrive - (1) - UKC4814
Gear Knob - Overdrive Type;
Assembly - inc Switch/Cap - (1) - 153515
Switch only - (1) - 520999A
Cap only - (1) - 153515CAP
Chrome Cone Nut - Overdrive Type - (1) - C30505A
Inhibitor Switch - (1) - BAU1074A
Reverse or Overdrive operating.
Wiring Harness (lever) Overdrive - (1) - 153726
Gaskets;
Top Cover * - (1) - 105758
Casing/Rear Extension * - (1) - 132465
For non overdrive & overdrive models.
Nose Extension/Front Cover * - (1) - 59537
Keep/Cover Plate * - (1) - 55774
Gasket Kit - Gearbox - (1) - 515121
Kit contains all items marked *.
Does not include overdrive gaskets.
Front Oil Seal - (1) - 141756
Rear Oil Seal - (1) - 146129
Fits non overdrive & 'A' type overdrive.
Rear Oil Seal - (1) - NKC39A
Fits 'J' type overdrive.
Mainshaft;
Non Overdrive - (1) - TKC743
'A' Type Overdrive - (1) - UKC1933
'J' Type Overdrive - (1) - TKC832
Speedo Gear (worm drive) - Non Overdrive Models - (1) - 139031
Bearing - Mainshaft Centre - (1) - 58391
Snap Ring (for 58391) - (1) - 58955
Washer (for 58391) - (1) - 59443
Fits between snap ring & circlip.
Circlip - (1) - 58956
Retains washer 59443 & bearing 58391.
Bearing - Mainshaft Rear - (1) - 513897
Output (non overdrive).
Output Flange (non overdrive) - (1) - 58948
Nut (Output Flange) (non overdrive);
2000 Mk2 - (1) - 57868
2.5Pi Mk2 - (1) - 57868
2000TC - (1) - 157642
2500S & TC - (1) - 157642
Washer (Output Flange) - (1) - WP24
Gearbox Recon Kit;
2000 Mk2 & 2.5Pi Mk2 - (1) - RM8066
Kit includes; 1 gasket set 515121, 1 oil seal 141756, 4 synchro rings 113431, 1 circlip 55707,
2 snap rings 58955, 1 circlip 58956, 1 needle roller 158368, 2 bearings 58391, 2 needle roller 150339,
1 thrust washer 129956, 1 counter shaft 128105, & 1 reverse gear 128110.
200TC & 2500S & TC - (1) - RR1121
Kit includes; 1 gasket set 515121, 1 oil seal 141756, 4 synchro rings 113431, 1 circlip 55707,
2 snap rings 58955, 2 circlip 58956, 1 needle roller 158368, 2 bearings 58391, 2 needle roller 150339,
1 counter shaft 128105 & 1 reverse gear 128110.
Unipart EP90 Gear Oil (0.5 litre) - (ar) - GGL190
2.0 litres required for gearbox + 'A' type overdrive.
1.5 litres required for gearbox + 'J' type overdrive.
1.2 litres required for non overdrive gearbox.
MAINSHAFT GEAR LISTINGS
The following parts are listed in order from the Rear of the Main Casing to the Front.
Note: We do carry a full range of gearbox components. If the item you are looking for is not listed, please contact us.
Washer (adjacent to 1st speed gear) - (1) - 116496
Gear (1st speed) - (1) - 152770
Bush (1st gear) (fits inside gear, also for 3rd gear);
Brass Type - (1) - 129940
Steel Type - (1) - 153238
Washer (use as required);
Fits between 1st gear & synchro hub.
0.118" - (ar) - 129941
0.121" - (ar) - 129942
0.124" - (ar) - 129943
0.132" - (ar) - 129944
Synchro Ring - (1) - 113431
Synchro Hub Assembly (1st, 2nd & reverse) - (1) - 153843
Spring (synchro hub) - (3) - 153318
Ball Bearing (synchro hub) - (3) - BLS108
Synchro Ring - (1) - 113431
Washer (use as required);
Fits between 2nd gear & synchro hub.
0.199"/0.197" - (ar) - UKC958
0.202"/0.200" - (ar) - UKC959
0.205"/0.203" - (ar) - UKC960
0.208"/0.206" - (ar) - UKC961
Gear - 2nd Speed;
2000 Mk2 & 2.5Pi Mk2 - (1) - 152771
Up to gearbox MB107047 & MG12808.
2000 Mk2 & 2.5Pi Mk2 - (1) - 216802
From gearbox MB107148 & MG12808.
Alternative replacement for 152771 if fitted with 155047, 2nd countershaft gear.
2000TC & 2500S & TC - (1) - TKC454
Bush - 2nd Gear;
Fits inside 2nd gear, 'Top Hat' type.
Brass Type - (1) - 129939
Brass Type Uprated - (1) - 129939X
Steel Type - (1) - UKC956
Gear - 3rd Speed - (1) - 152772
Bush - 3rd Gear;
Fits inside gear, also for 1st gear.
Brass Type - (1) - 129940
Steel Type - (1) - 153238
Synchro Ring - (1) - 113431
Washer - (1) - 157054
Fits between synchro ring & circlip 55707.
Circlip - (1) - 55707
Synchro Hub Assembly (3rd & 4th) - (1) - 153844
Outer Sleeve for above - (1) - 153844X
Spring (synchro hub) - (3) - 153318
Ball Bearing (synchro hub) - (3) - BLS108
Needle Roller - 4th Gear - (1) - 158368
Synchro Ring - (1) - 113431
Input Shaft (4th) - (1) - 218843
Washer (adjacent to bearing 58391) - (1) - 60658
Bearing - (1) - 58391
Snap Ring - (1) - 58955
Washer - (1) - 60078
Fits between bearing 58391 & circlip 58956.
Circlip - (1) - 58956
REVERSE & COUNTERSHAFT LISTINGS
The following parts are listed in order from the Rear of the Main Casing to the Front.
Note: We do carry a full range of gearbox components. If the item you are looking for is not listed, please contact us.
Thrust Washer (front);
2000 Mk2 & 2.5Pi Mk2 - (1) - 129956
2000TC, 2500S & TC - (1) - 153346
Needle Roller;
Press In (closed cage) - (1) - 126862
Slide In (open cage) * - (1) - 150339
* If this bearing fails due to 'pitting', it may be replaced with the earlier closed cage type.
Circlip - (1) - 147749
Washer - (1) - 154397
Gear - Countershaft;
1st & Reverse - (1) - 128107
1st & Reverse Uprated - (1) - 128107UR
2nd -
2000 Mk2 & 2.5Pi Mk2 - (1) - 140508
Up to gearbox MB107047 & MG12808.
2000 Mk2 & 2.5Pi Mk2 - (1) - 155047
From gearbox MB107148 & MG12808.
2000TC & 2500S/TC - (1) - 155047
3rd - (1) - 140509
Bush (between 3rd & reverse gear) - (1) - 59456
Gear - Countershaft (reverse) - (1) - 159621
Washer - (1) - 154396
Circlip - (1) - 147749
Needle Roller;
Press In (closed cage) - (1) - 126862
Slide In (open cage) * - (1) - 150339
* If this bearing fails due to 'pitting', it may be replaced with the earlier closed cage type.
Thrust Washer - Rear - (1) - 129955
2000 Mk2 & 2.5Pi only.
Countershaft (layshaft) - (1) - 128105
Spindle - reverse gear - (1) - 129937
Gear - Reverse - (1) - 128110
Bush (reverse gear) - (1) - 129862
Operating Lever - (1) - 129894
Fulcrum Pin - (1) - 106448
Washer - (1) - GHF333
Nut - Nyloc - (1) - TN3209
Overdrive Only ('A' type) - (1) - 311772R
Recon, exchange. Less solenoid, adaptor plate & speedo drive.
Solenoid (bolt on type) - (1) - 109521
Solenoid - Plunger only - (1) - 109521PLUNGER
Relay - (1) - 142169A
Gaskets - Solenoid;
Solenoid to Body - (1) - 7H8196
Solenoid Housing to Overdrive - (1) - 500645
Solenoid Housing to Cover - (1) - 518113
Gasket Set - (1) - RS1630
Bearing;
Annulus Front - (1) - SP74G
Annulus Rear (output) - (1) - 513897
'One Way' Slipper Bearing - (1) - BAU2061A
Cone Clutch (recon) - (1) - 518107R
Accumulator Ring Set - (1) - 505555
Oil Seal - Rear - (1) - 146129
Drive Flange - (1) - 58948
Washer - (1) - WP24
Nut - (1) - 57868
Speedo Pinion Bearing - (1) - 146542
Angle Drive - Speedo - (1) - 120694
Adaptor Plate (overdrive to gearbox) - (1) - 208098
Gaskets;
Overdrive to Adaptor Plate - (1) - 502556
Gearbox to Overdrive - (1) - 132465
Gasket Set - (1) - RS1598
Overdrive Only ('J' Type);
Less solenoid, adaptor plate & speedo drive.
2000 Models - (1) - 312377
2500 Models - (1) - RKC1639R
Solenoid (screw in);
All models.
New - (1) - NKC41
Recon - (1) - NKC41R
Adaptor Casing (gearbox to overdrive) - (1) - 312305
Gaskets;
Gearbox to Adaptor - (1) - 132465
Adaptor to Overdrive - (1) - 37H1901
Maincase - Front - (1) - NKC86
Maincase - Rear - (1) - NKC87
Sump - (1) - NKC76
Gasket Set - (1) - RS1630
Bearing;
Annulus Front - (1) - SP74G
Annulus Rear (output) - (1) - 513897
'One Way' Slipper Bearing - (1) - BAU2061A
Cone Clutch (recon) - (1) - NKC40R
Oil Seal (rear) - (1) - NKC39A
Drive Flange - (1) - 160292
Washer - (1) - NKC82A
Nut - (1) - NKC81
Angle Drive - Speedo - (1) - 120694
Wiring Harness (on gearbox);
'J' Type - (1) - 160193
'A' Type - (1) - 140433
Wiring Harness - Gearstick - (1) - 153726
Speedo Cables;
2000 Mk2 & 2.5Pi Mk2 -
Manual - Non Overdrive - (1) - GSD311
Manual - 'A' type Overdrive - (1) - 219167
Manual - 'J' type Overdrive - (1) - GSD172
2000TC, 2500S & TC -
Manual - Non Overdrive - (1) - GSD311
Manual - 'J' type Overdrive - (1) - GSD291
Speedo Angle Drive (manual) - (1) - 120694
Return to 2000/2500 Index Page 
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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.