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I just installed one on my Bird, and it works perfect. You only need one strut.

Ford part number is F4ZZ-63406A10-B and is from a 1994 Mustang GT. $20.27

I only had to drill one hole in the trunk arm.

I also bought a metric coupling, so that you can screw the one end of the strut to and existing stud in the trunk comp.

I also bought a ball socket mounting plate, which attaches to the trunk arm.

Took all of 10 minutes to do the job.

You can have the extra parts, as I bought enough for two. Unfortunately, I sent the extra strut back to Dan at 5-Star. PM me with your address.

Note: These two parts cost about $3 total.

When you push the trunk open button, the trunk extends all the way up at a nice even rate. It does not fly up. When you close it, it closes without slamming itself.

I am going to take some pictures tomorrow, and do a write up on it, as I found the Tech Article at MN12's web-site lacking in detail.
 
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There may be a slight delay in getting some photos.

Have to wait for the snow to stop falling.

Hopefully later this afternoon, I can take some.
 

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I just completed installation of a trunk lid lift strut. This lift strut allows the trunk lid to go up completely. It does not fly up, but rather goes up at a nice rate. It also closes nice, and it minimizes the chances of the lid slamming shut.

You will need the following parts.

1. Lift strut - Ford part number is F4ZZ-63406A10-B and is from a 1994 Mustang GT.
Cost: $20.67 with member discount

2. Ball mount bracket - McMaster Carr part #9512K91 (Qty. 1) Cost: $1.20

3. Coupling Nut- McMaster Carr part #93355A105 (Qty.) 8mm x 1.25 pitch x 1 1/2" lg.
Cost: $2.87

Note: I use the NJ branch of McMaster Carr, phone 1-732-329-3200

4. Pan head screw - #10-24 unc x 1" lg, with hex nut.

To install:

1. Screw the coupling onto the existing stud, as shown in photo

2. Attached ball socket fitting included with lift strut, to other end of coupling.

3. Enlarge top right hole to 1/4" dia. in ball mount bracket, to fit around trunk torsion arm.

4. Place ball mount bracket in position shown in photo, and drill a 3/16" dia. hole thru trunk arm, to line up with top left hole in ball mount bracket.

5. De-burr both sides of hole in trunk arm, and install pan head screw.

6. Attach lift strut to both ball sockets.








 
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I only installed one strut, because it works fine that way. I bought two, but sent the other one back.

The strut doesn't really go down any lower with the trunk closed, because of the arc that the arm swings in.

I removed the trunk latch, and crawled inside the trunk and lowered it completely, to determine the locating position of the ball mount bracket.
 

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I think the torsion bar could be removed, but that is just my opinion.

I think two lift struts, plus the torsion bar, on a trunk without the spoiler, would be too much lift force. Best thing is to try it. You can always send back the leftover parts.
 

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According to your other post, you aren't using the lift strut that I specified.

Mine worked fine with one strut on a stock trunk lid.

When I added the 96 Spoiler, it was not enough to lift it.

With the second lift strut, it open's just fine, and does not 'slam' upwards.
 
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