Project GD Subaru STI Part One- Rebuilding the Suspension

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The ball joint drops the lower control arm, correcting some of the angle lost when lowering the car, raising the roll center to a close to stock location.
To prevent bumpsteer the tie rod has to be lowered by the same amount as the ball joint.  The Whiteline kit comes with these special tie rod ends to match the ball joints.
To eliminate the clunking noises that Subarus get when the car becomes older and to improve shifting, we replaced our worn out transmission crossmember mounts with these Whiteline polyurethane parts.  Whiteline makes two different mounts, a soft Comfort part and a harder Motorsports part.  Once again we selected the harder part.  Our car had the clunk bad.
Here are where the mounts are located on the crossmember.  The rubber part is a bumper for the transmission case.
The transmission mount in place.
The crossmember location with the rubber bumper.

2 comments

  1. I have a 2004 STi. Can the hubs and steering rack be just direct replaced with an 05 sti?
    I was looking into following your project fairly closely with my car but wanted to make sure I address any issues native to the 04 to make the path easier.

    Are the engine management quirks mostly addressed once the car is tuned with something like a COBB accessport?

    1. The hubs can be but the rack cannot. However, Whiteline makes rack bushings that work well for these cars. The Access port has been pretty dialed back but is fine for OTS tunes and for strictly following Cobbs Green Initiative upgrade paths. For maintaining smog legality this is really the best way to go. For more advanced stuff ECUtek is the way to go.

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