DIFtech Front or Rear Shock Hats for Mazda Miata NA NB pair Penske 8300 10697-10


  • Fits Mazda Miata MX-5 NA or NB chassis - front or rear
  • Fits Penske 8300 dampers with 5/8-18 threaded shaft
  • 2" high-rise hat for Penske or other extension type dampers
  • Sold as pair
  • Coaxial...
$ 300.00
Tags: / / / /
  • Fits Mazda Miata MX-5 NA or NB chassis - front or rear
  • Fits Penske 8300 dampers with 5/8-18 threaded shaft
  • 2" high-rise hat for Penske or other extension type dampers
  • Sold as pair
  • Coaxial design for increased traction and reduced shock blind
  • Hat movement is independent of spring compression axis
  • Spherical bearing to eliminate bushing deflection under load
  • 6061-T6 aerospace aluminum alloy for extra rigidity and reduced weight
  • FK wide-series 5/8" high-quality spherical bearings
  • Install kit required (available for each shock brand)
  • Custom install kit available (email us for your custom application)
  • Anodized black finish for durability
  • Engineered, tested, and manufactured in the United States

These extended front top hats for NA and NB Miatas are designed to convert to a true coaxial setup and will add additional compression stroke to the shock. This kit is a 2" extension for Penske shocks, or other dampers that use a similar shaft-extension type design. For most other dampers, search 10698. This top hat design allows the shock shaft to be tucked higher into the body of the car allowing additional room for the shock body to move more than normal. This results in more shock travel before bottoming out and increased suspension compliance and traction. The spherical bearing upper mount also eliminates bushing compliance of stock mounts and gives greater control to dampers under high racing loads.

Non-coaxial upper mounts, while very economical for production and fine for street use, leave a lot of available suspension performance on the table. This can be vastly improved by going to a true coaxial setup that separates the upper mount and spring perch. Non-coaxial upper spring location induces bind in the shock shaft increasing friction on the shock piston and also forcing the spring to have nonlinear compression rate. Increased bind leads to higher shock oil temperature, additional wear in pistons and seals, and greatly reduces traction at the wheel. This kit will convert the non-coaxial top hats that come with most coilover suspension kits to a true coaxial set-up.

Made in the USA from 6061 billet aluminum. All Diftech upper mounts use high strength FK wide-series bearings with Teflon liners for maintenance free, quiet operation. For use with Penske spring retainers. Customers can email us for other custom install kits for specific racing applications.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Customer Reviews

Based on 1 review Review this product

Recently Viewed Products