Rear Thrust Angle Question?
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Joined: Jan 2005
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From: SIN CITY
Rear Thrust Angle Question? I just had a 4 wheel alignment done after SFC(BMR) install trying to chase a slight pulling and "wandering" sensation. I knew their would be a difference, but this sucks! Could anyone please look at the specs and see what you all think?
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Joined: Feb 2005
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From: Bethany, OK
My car likes to wander a bit as well. My strong front bar makes it even more noticable.
Just curious.. Did you install LCA brackets? I installed mine at the same time that I lowered my car with springs. I Thought that the ever-so-slight track to the right I experienced afterwards was because it needed alignment. Had it aligned at the best 'Chevy-ship' in town. Even after the alignment, I still noticed the slight right-track. My thrust angle was @ 0.23* after alignment.. I believe its also within GM specs according to service manual, but the Chevy dealership I took it to had their specified range written on the report as -0.15 to 0.15 and stated that my thrust angle was out of spec.
I wonder how much thrust angle deviation needed till you feel the rear end try to track and scoot under certain road conditions? Tramlining at the rear of the car instead of the front? Make sense?
The reason I say so much is that I am currently "feeling out" this problem and reasoning with myself about it as well.
Did you add LCA brackets recently?
Which direction does the rear of your car try to track (if applicable)? Left or right?
Just curious.. Did you install LCA brackets? I installed mine at the same time that I lowered my car with springs. I Thought that the ever-so-slight track to the right I experienced afterwards was because it needed alignment. Had it aligned at the best 'Chevy-ship' in town. Even after the alignment, I still noticed the slight right-track. My thrust angle was @ 0.23* after alignment.. I believe its also within GM specs according to service manual, but the Chevy dealership I took it to had their specified range written on the report as -0.15 to 0.15 and stated that my thrust angle was out of spec.
I wonder how much thrust angle deviation needed till you feel the rear end try to track and scoot under certain road conditions? Tramlining at the rear of the car instead of the front? Make sense?
The reason I say so much is that I am currently "feeling out" this problem and reasoning with myself about it as well.
Did you add LCA brackets recently?
Which direction does the rear of your car try to track (if applicable)? Left or right?
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Teching In
Joined: Feb 2005
Posts: 8
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From: Bethany, OK
Sorry dude (Niteprowler).. Im a space cadet.
Do you think that maybe your car's subframe had unenven pressure on it when the SFCs were installed? Maybe the subframe is a little twisted, and welding the SFCs into place made the distortion permanent?
(I could be way off base, but trying to help)
Do you think that maybe your car's subframe had unenven pressure on it when the SFCs were installed? Maybe the subframe is a little twisted, and welding the SFCs into place made the distortion permanent?
(I could be way off base, but trying to help)
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