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Trailing Arm Repair Kit

Order & Pricing

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There are now five (5) different kits to choose from:

  1. TARK - KS - Kit for use with KeenSert
  2. TARK - HC - Kit for use with Heli-Coils
  3. TARK - BOTH - Kit for use with BOTH KeenSerts & Heli-Coils - A good choice for a shop or club.
  4. TARK - 3/8 - Kit for tapping to 3/8-16 for use with larger studs. This kit does not use inserts. This kit can be used when fitting some CV axles and does not use threaded inserts.
  5. TARK - MASTER - A master kit that contains guides for all of the above.

The difference between kits 1 & 2 are the insert type you plan on using i.e KeenSerts or Heli-Coils. While the jig back plate is the same for both kits, the drill & tap insert jigs 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.

Please note that KeenSerts require an "X" drill size and 7/16-14 bottoming tap. There's some confusion here because a 7/16-14 tap is supposed to use a "U" drill size, BUT the KeenSerts instructions specify the larger "X" drill size. So don't make the mistake of using a "U" drill. The KeenSerts directions also call for a countersink but you won't need one when you use this set-up. If you were "free-handing" the tap, the countersink helps to line you up and get you started. The tap insert used here does all of that for you.

KeenSerts - while these can be sourced at many places, I'll use www.McMaster.com and their part numbers as these were used for our testing. However......McMaster only ships parts domestically, so anyone outside of the United States may want to order Heli-coils which are more readily available worldwide.

McMaster Part#

Description

92070A337 7 PIECE KIT with TOOL - BLACK-PHOSPHATE STEEL KEY-LOCK THREAD INSERT, 7-PC THIN WALL REPAIR KT,5/16"-24 INT,7/16"-14 EXT T
92070A250 PACKAGE OF 7  ADDITIONAL INSERTS - BLACK-PHOSPHATE STEEL KEY-LOCK THREAD INSERT, THIN WALL, 5/16"-24 INT THRD, 7/16"-14 EXT, 7/16"L,
1413K42 TAP MAGIC CUTTING AND TAPPING FLUID, FOR ALUMINUM, 4-OUNCE CONTAINER
2521A644 GENERAL PURPOSE HIGH-SPEED STEEL HAND TAP, BOTTOMING, 7/16"-14, H3 PITCH DIAMETER, 4 FLUTE
2901A168 "X" SIZE DRILL BIT

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.

Ordering & Pricing

Payment options are located here
 

Please specify the kit based on the threaded inserts that you will be using.

  • Trailing Arm Repair Kit for use with KeenSerts is Part#  TARK-KS
  • Trailing Arm Repair Kit for use with Heli-Coils is Part#  TARK-HC

Orders for the Trailing Arm Repair Kits are accepted on a prepaid basis

Part Number Plate Type # of Guides Price S&H* Total Price
TARK - KS Standard 2 $59.99 $12.00 $71.99
TARK - HC Standard 2 $59.99 $12.00 $71.99
TARK - 3/8 Multi 2 $79.99 $12.00 $91.99
TARK- Both** Standard 4 $99.99 $12.00 $111.99
TARK - MASTER*** Multi 6 $125.99 $15.00 $140.99

* Shipping prices are only for the continental United States only. Alaska, Hawaii and International orders will be on a quoted basis. Please contact me directly.

**TARK - BOTH includes guides for doing BOTH KeenSerts & Heli-Coils

*** TARK - MASTER includes guides for doing KeenSerts, Heli-Coils & 3/8" studs

Repair shops or Clubs that have a need for the kit with inserts for BOTH KeenSerts and Heli-coils or the MASTER kit that includes guides for all three options.

Payment options are located here
 

Please send a check or money order for the appropriate amount to: R. Patton, 5 Jeff St, Brunswick, Maine 04011. Allow a week to 10 days for delivery within the continental US. Overseas shipping can be arranged. Please include your mailing address and email address with your payment. Payment can also be made with Paypal. Paypal address is rick@pattonmachine.com

Contents Installation Order & Pricing

 

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