| Triumphs Only, Inc. - Triumph Technical Service Bulletin |
Gearbox Thrust Washer - All
February, 1973
The original 3-splined thrust washer located between the circlip and the 3-speed mainshaft gear has been replaced by a new thrust washer having six (6) internal splines.
The new thrust washer can be used to service all previous gearboxes and was introduced at the following gearbox nembers:
| Model | Gearbox No. | New Thrust Washer Part No. |
| Stag | LE10372 | 157054 |
| TR-6 | CC85563 | 157054 |
| Spitfire | FK33573 | 159978 |
| GT-6 | KF12733 | 159978 |
Because of this change, the circlip remover tools have been modified and are available under the following part numbers:
| Old | New | Application |
| S69A | S69B | TR-6, Stag |
| S144 | S144A | Spitfire, GT-6 |
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