Front End Alignment Specs

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Old Jan 5, 2026 | 05:23 AM
  #1  
JerryW's Avatar
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Joined: Dec 2023
Posts: 209
Front End Alignment Specs

So I have my own tools to check front end alignment. My Rallye 350 has tubular upper and lower arms, 1” taller upper ball joints, all urethane bushings. I ended up with the following alignment specs;
Driver Side
Camber -0.50 degrees
caster +4.0 degrees
Passenger side
Camber -1.0 degrees
Castor +4.0 degrees
toe -1/8” total

I have no shims on the front bolts to achieve these specs.

My question is this; is the 1/2 degrees caster of camber difference side to side a big deal? The only way to make both sides the same is to reduce the castor by adding shims to the front.

jerry
Old Jan 5, 2026 | 06:25 AM
  #2  
joe_padavano's Avatar
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Joined: Mar 2007
Posts: 50,768
From: Northern VA
Originally Posted by JerryW
So I have my own tools to check front end alignment. My Rallye 350 has tubular upper and lower arms, 1” taller upper ball joints, all urethane bushings. I ended up with the following alignment specs;
Driver Side
Camber -0.50 degrees
caster +4.0 degrees
Passenger side
Camber -1.0 degrees
Castor +4.0 degrees
toe -1/8” total

I have no shims on the front bolts to achieve these specs.

My question is this; is the 1/2 degrees caster of camber difference side to side a big deal? The only way to make both sides the same is to reduce the castor by adding shims to the front.

jerry
Jerry, this is the same problem I had on one of my cars. Unfortunately I was forced to back off on the caster slightly to get camber where it needed to be. Even 3.5 deg caster will be a huge improvement over stock. And yes, there was asymmetry on my car also. The joys of mass production tolerances.
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