$59.99
A frequent source of frustration for Triumph owners is the stripping of the threads holding the rear hub to the Trailing Arms (TA). The TAs are made of cast aluminum which is both soft and porous and the six studs on each side are threaded at 5/16″-24, which Triumph only rated at 14-16 foot pounds of torque. Anything more then that and you can strip the threads in the aluminum. Some people just drill and re-tap at 3/8″, but you’re still threading a steel stud into aluminum. The better solution is to use a threaded steel insert in the TA that the stud can screw in to, but the problem with doing that is drilling and tapping 12 holes that remain on center and perpendicular to the TA. If you have even one misaligned, the brake back plate and the rear hub won’t fit properly or not at all. More information below.
| Make | Triumph |
|---|---|
| Model | TR250, TR6, TR4A, Stag |
| Year | 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977 |
| Cylinders | Four (4) cylinder, Six (6) cylinder, Eight (8) cylinder |
| Thread Repair | HeliCoils |
Trailing Arm Repair Kit for use with Heli-Coils is Part# TARK-HC
The difference between kits -KS & -HC are the insert type you plan on using i.e KeenSerts or Heli-Coils. While the jig plate is the same for both kits, the drill & tap insert guides are different so make sure you use the correct inserts with the jig that you are ordering.
These kits DO NOT INCLUDE the drill, bottoming tap or inserts. You will also need a good quality tap lubricant for use in aluminum for both drilling and tapping. WD40 is an OK substitute
Heli-Coils are also available from many sources but as a former NAPA store owner I’d just recommend you order NAPA part # BK 770-3082. This kit contains 12 inserts, the insertion tool and the tap. It DOES NOT INCLUDE a 21/64″ drill bit or tap lubricant. Additional inserts can be ordered under NAPA part #BK 770-3132.
Please specify the kit based on the threaded inserts that you will be using.
Trailing Arm Repair Kit for use with Heli-Coils is Part# TARK-HC
One (1) Alignment Jig
One (1) Tap guide Helicoil
One (1) Drill guide Helicoil
Detailed documents, videos and downloads on installation can be found in Product Support under the Trailing Arm Kit section.
Also see:Trailing Arm Repair Kit – Set-Up | Trailing Arm Repair Kit (TAK) – Contents.
Only logged in customers who have purchased this product may leave a review.
Domestic/InternationalUSPS Flat Rate
By email & phone support
Patton Machine offers a large library of product information and support videos in our Installation Support Center.
Reviews
There are no reviews yet.