Build a Quote Homepage › TR3A, TR4

Front Seat Base Spring (Single)

Suitable Models: TR3A, TR4

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$235.15 – $249.86 exc. VAT UK Customers ONLY - VAT (20%) will be calculated at checkout.

As with most things in life; “preparation is everything” – ensure your seat spring coil units allow you to achieve the best finish possible by using a John Skinner Ltd kit.

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The introduction of the TR3A, as it was unofficially known, saw changes to the seat assembly units. Both the seat framework and the associated seat covers were updated to a narrower style “egg” shaped backrest squab. With this change came also a subtle change to the cushion base spring unit, which became more uniform in shape between top and bottom, aligning with the change in the design of the actual seat cover.

Triumph still continued with the use of a spring coil to offer the main bolster support of the cushion base, used in conjunction with horsehair seat paddings. The spring unit made-up the bulk of the height of the fully assembled seat unit for these TR3a/B style cover. These spring units are also suitable for a certain number of the radically overhauled, Giovanni Michelotti designed, TR4 models, first introduced during 1961. The use of the “TR3A” seat framework, and the associated spring coil kit, was further prolonged into the brief period of manufacture of the rarely seen vertical-pleat style covers (JSM refer to these as “TR4A Early – 30b”) that were also fitted to the TR3A framework, before the switch to the square-backed “Late” style seats commonly used in the TR4s.

John Skinner Ltd has offered the same seat spring units since the mid-1980s, supplying 1000s of these to car restoration projects all over the world. Unlike some much cheaper alternatives on the market which are sourced from the Far-East – our spring coils are made in the UK using a quality framework and spring coils to offer the correct resistance and core strength required in order to achieve a comfortable “ride”. Be mindful of these cheaper alternatives – as these spring parts are not just crucial to the look and finish of the Seat Covers, but also very much affect the ultimate comfort of you and your passengers when using the seats. Trust in tradition and expertise and don’t get blinded too much by price! For the best results, these spring units should be used in conjunction with a John Skinner Ltd Seat Padding Kit and Cover Kit.

DETAILS

  • Correct resistance spring coils to offer the most balanced and suitable spring base unit on the market.
  • Tried and test materials and design for 4 decades.
  • To be used in conjunction with our Seat Padding Kit which includes calico/scrim covers to help retain the spring to the desired height/resistance level for your specific height requirements.
  • Most TR3A/B and some TR4 Spring Units were flat on both top and bottom surfaces to match a flat framework bottom.
  • Some models left with an updated Framework bottom, which included a sunken square recess in a bid to attain extra comfort for the driver. This rarer version would require the Spring Unit with the “hump” on one side.

Why JSM?

  • Made in England, only 50 miles away from the original production line.
  • Our kits are manufactured using the same methods and templates that we have used to great success for 40+ years.
  • Access to help and advice when it comes time to fit the covers – we have been making and fitting these same covers for a long time – we know all the tricks, and we are more than happy to assist you or your trimmer should you get stuck.
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Due to the range of products we offer, and our worldwide customer base, we can only calculate an accurate shipping cost once Your Enquiry/Quote has been received by Jonathon. As there is no payment required at this stage – use our Quote Builder in full confidence, with zero commitment to purchase – and send us your Quotation request for your interior trim requirements; and we will get in touch directly with you with an updated Quote, which will include the shipment costs.

In the meantime, basic guideline shipping costs are outlined below.

(For all non-UK shipments – the final price per box depends on the size of the box – which is dictated by the items in your final selection)

UK: £10.50 – £30 per box

Europe & European Union: £20 – £150 per box

North America & Canada: £28.50 – £160 per box

Rest of World: £50.00 – £400 per box

Generally speaking, a complete car interior kit (Trim Panels, Carpets, Seat Covers, Boot/Trunk area, Soft Top Hoods etc) normally requires 2 x FULL Size Boxes, with some cars needing slightly less, and some slightly more.

Please note that these prices are exclusive of VAT (UK Customers ONLY) and any additional customs or handling charges that may be incurred during shipping. These prices are given as an approximation only.

For further information about shipping, and to learn more about how our shipping costs are calculated, please read our Shipping and Delivery guide.

 

🇪🇺 EU Shipments / Brexit 🇪🇺

As of January 2021, the UK is no longer part of the European Union (EU). As a result, several changes have been implemented which affects how EU based customers now purchase products from the UK.

It is not as problematic and complicated as people say. John Skinner Ltd sends hundreds of shipments to the EU; and rarely do we encounter any issues at all; and this is due to us working closely with our shipping agents to offer two choices that help to simplify the process for you.

You now have 2 Options you can choose from for shipping John Skinner products to the EU:

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Option 1: Standard International Shipping

This is the ‘standard’ method of purchasing items from the UK, since the UK left the EU (‘Brexit’).

You will pay John Skinner Ltd for 1) the parts ordered, and 2) the shipping cost to ship from the UK to your address.

You will NOT be charged UK VAT (20% Tax). (Before Brexit, you would have been charged UK VAT @ 20%).

Once your parts ship, you will be contacted directly by our shipping agent (normally DHL), who will request payment from you for 1) Your Local Country Tax based on the value of the John Skinner Invoice, 2) a small admin fee (normally around €15). Once this is paid, your goods are released from customs and delivered to your address.

You will NOT be charged any Duties/Tariffs. All the parts we supply are made by John Skinner Ltd in the UK, and we provide all the correct paperwork & documentation and sign declarations to ensure that no Duties/Tariffs apply to our goods. (This is often the part that most people get confused by with Brexit – they assume that anything they buy from the UK incurs Duties/Tariff charges – our products are 0% Duty/Tariff rated).

Note that this shipping option is the default choice offered when Jonathon is raising your initial Quote; if you wish to discuss the second option (see below) – then just mention this to Jonathon once he has made direct contact with you about your enquiry.

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Option 2: Prepaid Duties & Taxes *** VERY POPULAR OPTION ***

To simplify the purchasing process, you can choose our Prepaid Duties & Taxes option.

This process is becoming the most popular option for our EU customers as it makes everything very simple and straightforward, akin to how it was before the UK left the EU.

We will calculate & include all applicable import duties, taxes, and customs fees in your order total – and everything is paid up front to John Skinner Ltd.

Once the parts are ready and are shipped – you will NOT pay any additional costs, or have to do anything more – your order will be delivered to your address as normal. Our shipping agent (normally DHL) pays the Local Country Tax on behalf of John Skinner Ltd and they Invoice us for this later. This ensures that you won’t face any unexpected charges upon delivery, and your order will clear customs smoothly and quickly.

You can enjoy a more streamlined shopping experience with this option; like Brexit never even happened.

If you are interested in this option, please let Jonathon know once he has contacted you directly with your updated Quote via email; and he can update the Quote accordingly to reflect this choice.

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