1995 3000GT: TEC Rear Strut Tower Brace Installation

These instructions apply to a 1995 Mitsubishi 3000GT VR-4, but are easily transferable to any model/year of 3000GT or Dodge Stealth.

The Procedure

Parts Included With the Brace
  Here's what you get with the TEC brace - only one side of hardware shown. Both brackets (lower is optional support bracket), locking collars for the ends of the brace, the bar itself, and grade 10 fastening hardware. The ends of the brace are threaded, so the collars thread on either side of the bracket to lock it in place; much like the height adjustment on coil-overs works.


Another View
  Here's another angle of the pre-assembled brace.


Closeup of Parts
  Closeup of pre-assembled brace. Note the (3/8") thickness of the bar. That thing ain't gonna move. At all.


Assemble Brace
  Assemble the ends of the brace. I left a little play between the threaded collars so I could easily adjust things upon installation. The stud with the nut on it sticking out of the near side of the brace is used to mount the ECS electrical harness rather than having it just flop around. IMHO, that's excellent attention to detail in the design process.


Alternate View
  The other side of the assembled brace is shown above. Here you can clearly see the optional support bracket. The two bolts that hold it down are not fully tightened at this point.


Mount One Side of the Brace
  Here's the RH side of the brace placed in its mounting position. Note that there's a bit of slack/play in there - that's intentional for test-fitting purposes. Note how well everything fits - no wrestling, jiggling, wrenching, cursing, or anything else needed to get the brace into position.


Mount Other Side of the Brace
  Here's the LH side placed into position.


LHS Bracket
  Another view


RHS Bracket
  Another view


RHS Vertical View


Tighten Nuts and Bolts
  At this point, I tightened the collars to be finger-tight and flush against the mounting bracket. Then I partially tightened the nuts that attach to the studs on the struts on each side. Then I proceeded to tighten the nuts on the optional support brackets, the bolts on the optional support brackets, and the nuts on the strut studs. I did this a few turns at a time, working similarly to how you properly tighten lug nuts (don't do one side completely and then do the other side). The spec on the nuts on the upper strut mounts is 33 ft*lbs.


Attach ECS Harness and Fully Tighten Collars
  Make sure you attach the ECS wiring harness to the stud on the bracket if you have ECS. Then fully tighten the collars on the bar by inserting a 1/4" spanner or 1/4" punch (or in a pinch, the smooth end of a 1/4" drill bit will do).


Preload Brace As Appropriate
  As far as I understand it, drag racers want to preload the brace to push outward on the strut towers to combat sagging during the launch. Road racers and auto-crossers want to preload the brace to pull inward on the towers to keep the rear wheels in proper alignment during high-g corners.


Reinstall Trunk Parts
  I had my interior trunk trim out for other reasons when I took these pictures, so that's the reason for the bare metal in the trunk. Eventually, I'll have pictures of the completed trunk area.


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Last Modified Thu Jul 3 2003 18:35:53 PDT