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    Triumph TR3B (TCF) TR4-4A-5-250 Constant Pinion & Mainshafts - 4 Synchro

    Rimmer Bros, For all of your Car Parts & Accessories. Triumph TR3B (TCF) TR4-4A-5-250 Constant Pinion & Mainshafts - 4 Synchro and more, fast delivery, worldwide.
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    34801CirclipCirclipretaining158956In stock


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    £1.58 ex VAT (Business & Non EU)   £1.90 inc UK VAT
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    36632WasherWasher160078In stock


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    £0.67 ex VAT (Business & Non EU)   £0.80 inc UK VAT
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    36493BearingBearingconstant pinion shaft158391In stock
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    £15.83 ex VAT (Business & Non EU)   £19.00 inc UK VAT
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    36534Snap Ring/CirclipSnap Ring/Circliplocating158955In stock


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    £2.08 ex VAT (Business & Non EU)   £2.50 inc UK VAT
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    36715Oil ThrowerOil Thrower160658In stock


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    £1.13 ex VAT (Business & Non EU)   £1.36 inc UK VAT
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    864236Gear Set - Input Shaft & Constant Mesh GearGear Set - Input Shaft & Constant Mesh Gear1148949In stock
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    £200.00 ex VAT (Business & Non EU)   £240.00 inc UK VAT
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    102238Bearing Assembly - Input ShaftBearing Assembly - Input Shaft1145008In stock
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    £7.92 ex VAT (Business & Non EU)   £9.50 inc UK VAT
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    864039Spigot Bearing SleeveSpigot Bearing Sleeve1145008XIn stock
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    £9.37 ex VAT (Business & Non EU)   £11.24 inc UK VAT
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    8641010Mainshaft - Non-Overdrive - ImperialMainshaft - Non-Overdrive - Imperial1208051No Longer Available

    Use 208051U 
    725961MAINSHAFT NON-OD - USEDMAINSHAFT NON-OD - USED1208051UIn stock
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    £80.83 ex VAT (Business & Non EU)   £97.00 inc UK VAT
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    8641111Mainshaft - Overdrive - A Type - ImperialMainshaft - Overdrive - A Type - Imperial1208052In stock
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    £150.00 ex VAT (Business & Non EU)   £180.00 inc UK VAT
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    364912BearingBearingmainshaft centre158391In stock
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    £15.83 ex VAT (Business & Non EU)   £19.00 inc UK VAT
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    550533Bearing (RHP)Bearing (RHP)158391RHPIn stock
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    £49.58 ex VAT (Business & Non EU)   £59.50 inc UK VAT
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    365313Snap Ring/CirclipSnap Ring/Circliplocating158955In stock


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    £2.08 ex VAT (Business & Non EU)   £2.50 inc UK VAT
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    365714Thrust Washer - PlainThrust Washer - Plainbearing supporting159443No Longer Available

     
    348015CirclipCirclipbearing retaining - fitted to non-overdrive gearboxes only1 or 258956In stock


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    £1.58 ex VAT (Business & Non EU)   £1.90 inc UK VAT
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    365216Washer - PlainWasher - Plainbearing supporting - fitted to non-overdrive gearboxes only158949No Longer Available

     
    348117Bearing AssemblyBearing Assemblymainshaft rear - fitted to non-overdrive gearboxes only1513897In stock
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    £12.50 ex VAT (Business & Non EU)   £15.00 inc UK VAT
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    365118Drive Flange - Square - OriginalDrive Flange - Square - Originalmainshaft - interchangeable with 518109158948No Longer Available

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    41222318Drive Flange - Square - Original - UsedDrive Flange - Square - Original - Usedmainshaft - interchangeable with 518109158948UIn stock
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    £18.75 ex VAT (Business & Non EU)   £22.50 inc UK VAT
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    8643019Drive Flange - Round - ReplacementDrive Flange - Round - Replacementmainshaft - interchangeable with 589481518109In stock
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    £47.92 ex VAT (Business & Non EU)   £57.50 inc UK VAT
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    36679919Drive Flange - Round - Replacement - ReconditionedDrive Flange - Round - Replacement - Reconditionedmainshaft - interchangeable with 589481518109RIn stock
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    £32.50 ex VAT (Business & Non EU)   £39.00 inc UK VAT
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    41222219Drive Flange - Round - Replacement - UsedDrive Flange - Round - Replacement - Usedmainshaft - interchangeable with 589481518109UIn stock
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    £21.46 ex VAT (Business & Non EU)   £25.75 inc UK VAT
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    90227Washer - PlainWasher - Plain1WA600121In stock


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    £1.42 ex VAT (Business & Non EU)   £1.70 inc UK VAT
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    345520Washer - PlainWasher - Plain1WP24No Longer Available

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    364821Nut - Castle Headed - SlottedNut - Castle Headed - Slotted157868In stock


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    £3.75 ex VAT (Business & Non EU)   £4.50 inc UK VAT
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    332421Nut - NylocNut - Nyloc1NKC81In stock
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    £6.04 ex VAT (Business & Non EU)   £7.25 inc UK VAT
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    343622Nut - NylocNut - Nylocalternative to slotted nut1157642No Longer Available

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    332422Nut - NylocNut - Nylocalternative to slotted nut1NKC81In stock
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    £6.04 ex VAT (Business & Non EU)   £7.25 inc UK VAT
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    333823Split PinSplit Pinuse with slotted nut1PC12No Longer Available

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    8649523Split Pin - L 2 1/4 inch x D 1/8 inchSplit Pin - L 2 1/4 inch x D 1/8 inchuse with slotted nut1PC15In stock


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    £0.29 ex VAT (Business & Non EU)   £0.35 inc UK VAT
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    Product Description

    Triumph TR3B (TCF) TR4-4A-5-250 Constant Pinion & Mainshafts - 4 Synchro
    4 synchro gearboxes original to the cars supported by this catalogue have gearbox numbers prefixed by CT (TR4, TR4A) or CD (TR5, TR250).

    This section and the previous one dealing with external gearbox contain information relevant to original fitment gearboxes.  If your gearbox has a number subsequent to CD20281, or a prefix of CC or CF, then you are in possession of a later TR6 unit which differs in important details and is not covered here.  We would suggest in this instance that you should acquire our TR6 parts catalogue.

    Having said that, there is a chart at the end of this section which groups the major TR6 gearbox changes together, thus making the substitution of groups of later components into an earlier gearbox an easier task to understand (for example, if you wish to fit the post-73 taller first gear and laygear, nos 152803 and UKC662 respectively).

    If your gearbox number has any other prefix, it is likely to have been donated to the TR cause by a Triumph saloon at some point in its history, and while it will be similar in most respects there will be detail differences you will need to be aware of before embarking on a rebuild.  Please contact us for further information if this should be the case.

    Lastly, if you have an overdrive gearbox, it should be coupled to an A type overdrive to be original.  Later TR6s and saloons used a J type unit (adaptor brackets are available to fit the J type into earlier TR chassis).  The manufacturer’s plate on the overdrive body will tell you if yours is an A or J type.  If the plate is missing or illegible, look at the underside of the overdrive - the A type has a large screw cap, whereas the J type has a cast ribbed rectangular cover plate.  The recommendation if you find the latter is the same as before - locate and note down the prefix and gearbox number, then contact us for further information.

    Customer Comments
    "I know Rimmer Bros now for about 30 years. So very happy for your help." Customer Comment November '16
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