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    Triumph TR6 J Type Overdrive Conversion Kit & Electrics

    Rimmer Bros, For all of your Car Parts & Accessories. Triumph TR6 J Type Overdrive Conversion Kit & Electrics and more, fast delivery, worldwide.
    Prices displayed in: GB Pound Euro US Dollar AUD NZD
    GridItemIDItem No.Item InformationQty ReqPart No.AvailabilityPriceOrder Qty
    8680836Overdrive Conversion Kit - Right Hand DriveOverdrive Conversion Kit - Right Hand Driveincludes parts 37-641RR1522RHDOut of stock expected Add to cart and Back Order
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    £1,591.67 ex VAT (Business & Non EU)   £1,910.00 inc UK VAT
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    8680936Overdrive Conversion Kit - Left Hand DriveOverdrive Conversion Kit - Left Hand Driveincludes parts 37-641RR1522LHDOut of stock expected Add to cart and Back Order
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    £1,583.33 ex VAT (Business & Non EU)   £1,900.00 inc UK VAT
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    8636437Gearbox & Overdrive Assembly - J Type Overdrive - ReconditionedGearbox & Overdrive Assembly - J Type Overdrive - Reconditioned1RR1089RAvailable to Order from our supplier. Order NOW!
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    £866.67 ex VAT (Business & Non EU)   £1,040.00 inc UK VAT£650.00 ex VAT (Business & Non EU)   £780.00 inc UK VAT
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    185538StudStudoverdrive to chassis mounting2160219In stock


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    £3.08 ex VAT (Business & Non EU)   £3.70 inc UK VAT
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    33339Washer - Single Coil Locking - 3/8 inchWasher - Single Coil Locking - 3/8 inch2GHF333In stock


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    £0.54 ex VAT (Business & Non EU)   £0.65 inc UK VAT
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    36240Nut - 3/8 inch UNF x 9/16 inchNut - 3/8 inch UNF x 9/16 inch2GHF202In stock


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    £0.54 ex VAT (Business & Non EU)   £0.65 inc UK VAT
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    1378641Speedo Drive Pinion - 20 Tooth - GreySpeedo Drive Pinion - 20 Tooth - Grey1NKC48In stock
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    £24.37 ex VAT (Business & Non EU)   £29.24 inc UK VAT
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    331042Housing/Bearing - Speedo Drive PinionHousing/Bearing - Speedo Drive Pinion1NKC42In stock
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    £26.67 ex VAT (Business & Non EU)   £32.00 inc UK VAT
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    331143Adaptor - Angle DriveAdaptor - Angle Drive1NKC43In stock
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    £11.46 ex VAT (Business & Non EU)   £13.75 inc UK VAT
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    79144Screw - 1/4 inch UNF x 1/2 inchScrew - 1/4 inch UNF x 1/2 inchattaching retainer1SH604041In stock


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    £0.54 ex VAT (Business & Non EU)   £0.65 inc UK VAT
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    167337Screw - Genuine Land RoverScrew - Genuine Land Rover
    Land Rover Genuine
    1SH604041LNo Longer Available

    Use SH604041 
    31345Washer - Single Coil Locking - 1/4 inchWasher - Single Coil Locking - 1/4 inch1GHF331In stock


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    £0.09 ex VAT (Business & Non EU)   £0.11 inc UK VAT
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    354346Speedometer Angle DriveSpeedometer Angle Drive1120694In stock
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    £31.67 ex VAT (Business & Non EU)   £38.00 inc UK VAT
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    1451147Sealing Washer - Copper ID 7/16Sealing Washer - Copper ID 7/161538532In stock


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    £0.87 ex VAT (Business & Non EU)   £1.04 inc UK VAT
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    969748Speedometer Cable - 69 inchSpeedometer Cable - 69 inch1GSD169In stock
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    £11.67 ex VAT (Business & Non EU)   £14.00 inc UK VAT
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    346249Output/Drive Flange - J Type Overdrive - NewOutput/Drive Flange - J Type Overdrive - Newmainshaft1160292In stock
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    £72.50 ex VAT (Business & Non EU)   £87.00 inc UK VAT
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    1493949Output/Drive Flange - J Type Overdrive - ReconditionedOutput/Drive Flange - J Type Overdrive - Reconditionedmainshaft1160292UIn stock
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    £29.57 ex VAT (Business & Non EU)   £35.48 inc UK VAT
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    740450WasherWasher1NKC82AIn stock


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    £0.79 ex VAT (Business & Non EU)   £0.95 inc UK VAT
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    332451Nut - NylocNut - Nyloc1NKC81In stock
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    £6.04 ex VAT (Business & Non EU)   £7.25 inc UK VAT
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    330952Solenoid J Type OverdriveSolenoid J Type Overdrive1NKC41In stock
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    £120.83 ex VAT (Business & Non EU)   £145.00 inc UK VAT
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    740352Solenoid J Type Overdrive - ReconditionedSolenoid J Type Overdrive - Reconditioned1NKC41ROut of stock expected Add to cart and Back Order
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    £56.67 ex VAT (Business & Non EU)   £68.00 inc UK VAT£40.00 ex VAT (Business & Non EU)   £48.00 inc UK VAT
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    328753Washer - SealingWasher - Sealing1NKC108Out of stock expected Add to cart and Back Order

    £2.25 ex VAT (Business & Non EU)   £2.70 inc UK VAT
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    114572Washer - DowtyWasher - Dowty1NKC108XIn stock


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    £1.58 ex VAT (Business & Non EU)   £1.90 inc UK VAT
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    328654O Ring/SealO Ring/Seal2NKC107In stock


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    £1.33 ex VAT (Business & Non EU)   £1.60 inc UK VAT
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    332155Earth Lead - SolenoidEarth Lead - Solenoid1NKC67In stock


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    £2.83 ex VAT (Business & Non EU)   £3.40 inc UK VAT
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    8574256Wiring Loom - Overdrive - GearboxWiring Loom - Overdrive - Gearbox1UKC344In stock
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    £22.08 ex VAT (Business & Non EU)   £26.50 inc UK VAT
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    8569157Connector - Female Single Line - 2 way - Genuine MG RoverConnector - Female Single Line - 2 way - Genuine MG Rover
    Rover
    4104618In stock


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    £0.50 ex VAT (Business & Non EU)   £0.60 inc UK VAT
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    8574358Wiring Loom - Overdrive - Body - Overdrive to Column SwitchWiring Loom - Overdrive - Body - Overdrive to Column Switch1UKC345In stock
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    £12.50 ex VAT (Business & Non EU)   £15.00 inc UK VAT
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    218259Grommet - 1 inchGrommet - 1 inchloom to switches1600396In stock


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    £2.08 ex VAT (Business & Non EU)   £2.50 inc UK VAT
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    207860Clip - BracketClip - Bracketloom to gearbox top cover1AEU1581ANo Longer Available

    Use PCR809 
    226160P Clip - Cable Diameter 1/2 inch - Fixing Hole Size 9/32 inchP Clip - Cable Diameter 1/2 inch - Fixing Hole Size 9/32 inchloom to gearbox top cover1PCR809In stock


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    £1.00 ex VAT (Business & Non EU)   £1.20 inc UK VAT
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    36061Switch - Lucar TerminalsSwitch - Lucar Terminalsoverdrive isolator & reverse light2BAU1074AIn stock
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    £6.04 ex VAT (Business & Non EU)   £7.25 inc UK VAT
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    112708Switch - Lucar Terminals - UsedSwitch - Lucar Terminals - Used2BAU1074AUNo Longer Available
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    11762WasherWasherswitch adjusting2502146In stock


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    £0.37 ex VAT (Business & Non EU)   £0.44 inc UK VAT
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    561763Overdrive Switch - Black - RHDOverdrive Switch - Black - RHD1147280In stock
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    £25.00 ex VAT (Business & Non EU)   £30.00 inc UK VAT
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    545963Overdrive Switch - Black - LHDOverdrive Switch - Black - LHD1147281In stock
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    £25.00 ex VAT (Business & Non EU)   £30.00 inc UK VAT
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    576664Escutcheon/CoverEscutcheon/Coveroverdrive switch1611974In stock
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    £9.79 ex VAT (Business & Non EU)   £11.75 inc UK VAT
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    Product Description

    Triumph TR6 J Type Overdrive Conversion Kit & Electrics
    Recommended for (1973 to 1976) CR/CF series vehicles.
    Operates in 3rd and 4th gears only.

    Overdrive Conversions
    Availability Note:
    Whilst our conversion kits list everything that you should need to convert your car to overdrive spec, in reality we often struggle to supply a complete kit due to old core gearbox shortages. Therefore, use this section to work out what is involved and ensure you have all the parts required (sometimes a serviceable, secondhand gearbox is a good starting point), before you commit to the project.

    An overdrive conversion is among the most useful modifications that can be carried out on your TR6 and it is relatively straightforward to do. Overdrive provides useful additional gear ratios, for use under all driving conditions. Creeping about in town, the use of 2nd overdrive and 2nd gear, an A type unit only, saves on the continual 2nd to 3rd to 2nd gear changes, It nicely bridges that 2nd to 3rd speed ratio gap.
    The 3rd gear gives that little extra help for high-speed overtaking when an upward gear change could best be ignored. The 4th gear overdrive provides effortless high-speed cruising improving long distance touring fuel economy.
    The A type overdrive unit was fitted as an option to the TR6 (CP/CC series pre 1973) and operates in 2nd, 3rd and 4th gears. It provides a 22% reduction to the engine speed for a given road speed when engaged. The J type overdrive unit was fitted to TR6 (CR/CF series from 1973), operating on 3rd and 4th gears only. It provides a 25% reduction to the engine speed for a given road speed when engaged.
    To simply 'Bolt-On' an overdrive to your non-overdrive box is not possible since the mainshaft (output shaft) at the rear of the gearbox, is different. Whilst it is possible to adapt your existing gearbox for overdrive fitment, this does mean that a strip down is required to change the mainshaft. This, in effect, results in overhauling the gearbox (at least replacing bearings, synchro's etc - see Gearbox Reconditioning Kits) prior to fitting the overdrive. This also assumes that your existing non-overdrive gearbox is to original specification (i.e., it has not been changed or rebuilt to a difficult specification by a previous owner) and that the overdrive mainshaft purchased is compatible with your unit. In real terms, it is easier (and usually more economical) to buy a compete, TR6 reconditioned gearbox and overdrive assembly which, when purchased with a conversion kit, saves all the trouble.
    Our conversion kits not only include the gearbox/overdrive unit assembly, but also wiring, column switch, solenoid, drive flange, speedo pinion, angle drive and speedo cable. Just about everything you will need! You should also consider replacing as a matter of course (purchasing separately), the clutch assembly and engine/gearbox rubber mountings whilst carrying out the conversion (refer to relevant sections). Depending on the vehicle chassis type and type of overdrive gearbox (A or J type) to be fitted, it may be necessary to purchase separately the rear mounting bracketry.
    Pleas note that our conversion kits are based on receiving an old gearbox in exchange - either a TR6 non overdrive unit or a saloon (2500), Sprint or Stag type gearbox/overdrive assembly.
    To select the type best suited to your car, the A type conversion suits CP/CC series cars (pre 1973) and the J type CR/CF models (1973 onwards). The positions of the chassis mounting brackets for the gearbox/overdrive are different, so selecting the 'correct' overdrive conversion makes life easier, i.e. early (CP/CC) non-overdrive gearbox and chassis mountings are the same as the A type overdrive, and late (CR/CF) the same as J type. For the record, the J type locates about 1 inch lower and 3 inches further back on the chassis than the A type. The propshaft is the same for all applications and may be re-used if serviceable.

    Customer Comments
    "Always helpful. New exchange rate makes pricing very competitive." Customer Comment November '16
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