Triumph TR6 J Type Overdrive - CR/CF 1973-1976

Order your Triumph TR6 J Type Overdrive - CR/CF 1973-1976 ⛽ Low prices and fast, worldwide delivery ✈ British car experts ♚ Call ☎ 01522 568000 or ☎ 1-855-746-2767
Part No.: GRID600100

Prices displayed in:
1
Note: Ensure gearbox is clean internally before fitting overdrive - avoiding cross-contamination from dirty oil.
Qty Req-1, Model-Comm No CR1 to CR6701, CF1 to CF35000 Serial no 25/115838
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313242R
Out of stock, please call for latest delivery information
£700.00 ex VAT£840.00 inc UK VAT
£200.00 ex VAT£240.00 inc UK VAT
Quantity
1
Note: Ensure gearbox is clean internally before fitting overdrive - avoiding cross-contamination from dirty oil.
Qty Req-1, Model-from Comm No CF35001 Serial No 25/115876
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RKC1971R
This part has been superseded
Use 313242R
1
Note: Ensure gearbox is clean internally before fitting overdrive - avoiding cross-contamination from dirty oil.
Qty Req-1, Model-from Comm No CF35001 Serial No 25/115876
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313242R
Out of stock, please call for latest delivery information
£700.00 ex VAT£840.00 inc UK VAT
£200.00 ex VAT£240.00 inc UK VAT
Quantity
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132465
Out of stock, expected soon Feb 28, 2026. Add to cart and Back Order
£0.90 ex VAT£1.08 inc UK VAT
Quantity
5 out of 5 starsRead 1 Review(s)Rate and Review this Product
312305
2 in stock
Most orders placed now ship tomorrow!
£241.50 ex VAT£289.80 inc UK VAT
Quantity
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37H1901
In stock
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£1.00 ex VAT£1.20 inc UK VAT
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GHF163
In stock
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£0.50 ex VAT£0.60 inc UK VAT
Quantity
5 out of 5 starsRead 2 Review(s)Rate and Review this Product
GHF332
In stock
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£0.10 ex VAT£0.12 inc UK VAT
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5 out of 5 starsRead 1 Review(s)Rate and Review this Product
GHF201
In stock
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£0.25 ex VAT£0.30 inc UK VAT
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5 out of 5 starsRead 1 Review(s)Rate and Review this Product
GHF331
In stock
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£0.10 ex VAT£0.12 inc UK VAT
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5 out of 5 starsRead 1 Review(s)Rate and Review this Product
GHF333
In stock
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£0.10 ex VAT£0.12 inc UK VAT
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GHF202
In stock
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£0.25 ex VAT£0.30 inc UK VAT
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TKC832
3 in stock
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£292.25 ex VAT£350.70 inc UK VAT
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159505
2 in stock
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£42.25 ex VAT£50.70 inc UK VAT
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5 out of 5 starsRead 1 Review(s)Rate and Review this Product
KW316
In stock
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£1.00 ex VAT£1.20 inc UK VAT
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137308
Usually in stock at our supplier, allow 1 week for delivery
£5.25 ex VAT£6.30 inc UK VAT
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159503
In stock
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£4.50 ex VAT£5.40 inc UK VAT
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17
Note:
Washer 538532 required to be replaced at same time to validate warranty.
Qty Req-1
5 out of 5 starsRead 2 Review(s)Rate and Review this Product
120694
Out of stock, expected soon. Add to cart and Back Order
£55.50 ex VAT£66.60 inc UK VAT
Quantity
17
All metal construction as per the OE part, made in the UK.

Note:
Washer 538532 required to be replaced at same time to validate warranty.
Qty Req-1
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120694OE
In stock
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£155.50 ex VAT£186.60 inc UK VAT
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538532
In stock
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£0.50 ex VAT£0.60 inc UK VAT
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GSD109
Out of stock, expected soon Aug 20, 2026. Add to cart and Back Order
£15.50 ex VAT£18.60 inc UK VAT
Quantity
19
Remember all cables must be securely clipped to prevent chaffing or snagging.

Fitting,
MGA, LHD
MGC, not NAS
Midget, G-AN4, G-AN5, H-AN9, H-AH10
Qty Req-1
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GSD114
Out of stock, expected soon Mar 01, 2026. Add to cart and Back Order
£11.25 ex VAT£13.50 inc UK VAT
Quantity
19
The 69 Inch speedometer cable is the original fitment on LHD cars.
It is also the one preferred for RHD cars as it allows a little extra length when routing.
Remember all cables must be securely clipped to prevent chafing or snagging.
Qty Req-1, Item Info 2-LHD
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GSD169
In stock
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£13.50 ex VAT£16.20 inc UK VAT
Quantity
12 month warranty
Worldwide shipping
Price Match
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Product Description

Triumph TR6 J Type Overdrive - CR/CF 1973-1976
The ‘J’ Type overdrive made by Laycock was fitted from 1973 model year on as an option and was originally operable in 3rd and 4th gears only.  It provides a 25% reduction to the engine speed for a given road speed when engaged.