TR 2 / 3 / 4 Products

Replacement Frames

CH-03 Dimensions and Weights

Weight of Finished Bare Frame is 190 lbs

 For reference the samples we have of the TR3 frames weigh in at 160lbs after they were cleaned and freed of loose rust and dirt. We don’t know exactly how heavy the originals were but we can say that our frames are approximately 30 lbs. heavier than the existing frames according to there condition.

Frame length 10 feet 8 inches  

Frame width at the body outriggers 

                                                                 TR2-TR3---- 43 inches 

                                                                 TR4(sra)-47 inches 

Height at front tower 13 inches

Shipping pallet dimensions for all series frames.

12 ft.long

5 ft high

3.3 ft wide

2x6 construction pallet weigh's approximately 125 lbs .



Electrostatic Powder Coating - Our preferred finish due to it's durable surface...  it is an electrostatically applied  plastic coating  infiltrating the substrate of the metal  providing  a distinctive finished look.  We have found this surface finish to be far superior to any painted finish.  This polyester powder coating material can be repaired easily...  It  will not pull back significantly if welding is necessary nor will it flame up in the welding process.  We have found that it can be spread with a trowel when it is hot and blended easily. To make the repair look natural, feather the area when cool with sandpaper and paint with Krylons new fusion paint. It is  made to paint polyester plastics thus  providing a coating  like the type of powdercoat we use.  Our new awareness of the qualities of this powder coat and the fact that paint and powder coat now costs about the same, has led us to drop paint from our options list. Powder coating includes sandblasting, sanding, powder primer coat and a powder finish coat in a variety of colors. Black is the most popular, but a variety of other colors are available.

Phosphoric Acid Coating  - Frames that our customers would rather finish themselves are sprayed with a metal prep solution to keep the frame from surface rusting until it is sandblasted and finished. This coating forms a white powder on the surface easily removable with soap and water.   It is highly recommended that the chassis be sandblasted and finished as soon as possible.

Un-Finished - As the title implies, completely unfinished


WoolWax® - Our Preferred product.

Lanolin is a unique organic substance derived from the wool grease coating on raw sheep wool. It is an all natural, incredibility effective substance that acts as a moisture barrier and lubricant.

WoolWax® Undercoating Formula is a lanolin based corrosion inhibitor developed solely to protect the undercarriages of automobiles and trucks. Our lanolin is blended with other proprietary agents to provide long term corrosion protection. 

Most other undercoating products contain up to 70% solvents, which make these products very thin and watery. Without a very thick viscosity, these products break down and wash off quickly. WoolWax® is solvent free and very thick and viscous. It applies like a heavy latex paint. WoolWax® does not dry. It remains soft and pliable and continues to be active, migrating into all the inaccessible areas.

WoolWax® is the most trusted name in vehicle undercoating protection. Municipalities, Fire Departments, Undercoaters, and snow and ice removal companies all throughout the northeast trust WoolWax® for their corrosion protection needs. WoolWax® is a heavy duty industrial grade lanolin/woolgrease formula that provides powerful long term corrosion protection. Because WoolWax® is built thicker, it is more resistant to wash-off than competitors products. WoolWax® is built to last longer ! 

Expanding Foam - This foam is expanding closed cell,  water proof foam which sticks like glue to all surfaces when hardened. It is not a sponge and will not absorb water. Also it does not allow anything to infiltrate the interior of the chassis.  The expanding foam is forced into one end of the open tubing  and allowed to ooze out of the other end to assure a complete fill. Once fully expanded  the over fill is cut away and the fill holes are filled with plastic caps.  This foam application does two things to the structure.  First it makes for an impenetrable water seal and secondly sound dampens the frame. You may think this a minor point but in fact the frame does resonate and amplify the vibrations caused by road conditions and those passed along by the drive train. Foam filling quiets the ride appreciably. About 90% of all the frames made to date are foam filled.


We are now offering a Rolling TR3 Chassis.  Please call for more information


CH-03 Frame

Powder Coating

        Internal Rustproofing





$350   (required for all shipped frames)

Front Suspension

Front Tube Shock Conversion Kit

This kit replaces the standard lower shock mount brackets, the ones that look like dog bones, with new brackets. The new brackets allow the use of the Sensatrac shock absorbers, which has pin type ends. Orientation of the new bracket is essential in the operation of the system and specifically the shock absorber. This kit is recommended as a complement to either of our rear shock conversion kits.


FSK-01 $190

(includes Monroe Sensa-track Shocks)

FSK-02 $165

(includes Monroe Gas Charged Shocks)

Front Sway Bar Kit

Front Sway Bar Kit

    The Front Sway bar was never supplied by the factory.  This bolt-on kit is completely reversible.  The kit contains everything you need for the installation, including the end links and the end link brackets for the lower wishbone.  The new bracket mounts between the front bumper bracket and the frame.  The holes are slotted to allow the sway bar to be positioned below the bumper bracket.


FSBK-02 $475  (fits TR2-3)

Rear Suspension

Rear Tube Shock Conversion Kit

The rear tube shock conversion kit consists of the L shaped brackets which attach to the original lever shock mount.  Due to the high moment arm stresses created by these brackets, a stiffener support was created to connect across from the left shock mount to the right which significantly strengthens and supports the shock mounting plates.  Also supplied are the lower shock mounting plates which replace the original U-bolt mounting plates and create the lower mounting point for the Tube Shock as well as adding a new tie down point for transporting the car.  Black Semi-Gloss Powder Coat for Rust Resistance.  Please let us know if you have a TR-2 or Early TR-3 as we need to provide a special version of the kit for you.


TR2/3  (Solid Rear Axle)

TCBK-04 Tube Shock Conversion Kit $275

Brackets Only

TCBK-05 Tube Shock Conversion Kit $350

w/Monroe Sensa-tracs

TR4 (Solid Rear Axle)

TCBK-06 Tube Shock Conversion Kit $275

Brackets Only

TCBK-07 Tube Shock Conversion Kit $350

W/ Monroe Sensa-tracs


These replacement springs are standard Rate and height as original.


FSSK-02 Front Spring Kit (TR2/3/4) 2pcs  $100

RSSK-02 Rear Leaf Spring Kit  (TR2/3/4) 2pcs  $260

Throttle Linkage Kit

For all Triumphs TR2/3/4/5/6 with:

Dual Strombergs

Dual SU's

Dual  or triple Webers,  DGV or DCOE

Triple Strombergs

Triple SU's


If you are using any of the above mentioned carburetor setups with either the stock, Pierce Cannon or Goodparts manifolds, then these kits will make your life so much simpler. It eliminates the bell crank system used in the stock carburetor setups and replaces it with a modern, infinitely adjustable, aircraft quality, push pull cable system. 

RATCO's approach is to simplify the entire connection between the accelerator pedal and the throttle connection at the carburetor with a cable instead of a bellcrank. In the process we have eliminated that cumbersome bellcrank linkage and have added adjustability which allows foot pedal height adjustment, full open throttle settings and free play adjustment. All this adds up to a smoother and more accurate linkage for the street rider and track racer alike.

This system replaces the bell crank assembly at the carburetor with a push/pull aircraft cable assembly connected to the lever at the passenger side firewall and a simple bracket at the carburetor. Now Weber owners can get full throttle acceleration, which was impossible with the stock linkage. Installers get to choose the location of the carburetor bracket, which is most convenient for them and all users get smooth accurate response to pedal pressure.

All hardware needed is included and complete instructions come with the kit or can be downloaded from this web site. All parts are powder coated and all hardware is nickel-plated. Installation takes about 1 hour and requires drilling holes in the firewall to mount the bracket.

Additional Information here:


TLK-01 Throttle Linkage Kit (TR4) $125

For all with Standard Manifold, 

Dual or Triple Stromberg, 

SU or  Weber DGV

TLK-02 Throttle Linkage Kit (TR4) $125

For Weber DCOE Carbs with 

Cannon Manifolds only.

TLK-03 Throttle Linkage Kit (TR2/3) $125

For Standard Manifold

(call if other)

TLK-04 Throttle Linkage Kit (TR2/3) $125

For Weber DCOE Carbs

Emergency Hood Release Kit

You may not have experienced it yet, and we hope you never do, but one day you're going to pull the hood release handle and you're going to feel the cable slip from it's clamp, or snap entirely.  Due to the fact that the locking mechanism is located on the firewall, it is all but impossible to reach.  This simple and inexpensive kit allows you to have a secondary method of opening the hood in case of such an emergency.  Many of our customers tell us they like it so much they often use it instead of the original.  It is also more convenient because it is accessible from the passenger side which is where the secondary latch is located, so it saves some walking around the car.

Our kit is unique in that it uses the existing hole in the locking mechanism, rather than requiring you to drill a new hole.  We always prefer to minimize permanent changes in favor of reversible changes.  The installation is extremely simple and requires only a single 1/8" hole in the firewall to allow the control rod to enter the passenger compartment.  Please review the photo below.


EHRK Emergency Hood Release Kit (not for TR2/3) $20

Here's an article from one of our customers about our Tube Shock Conversion Kit