Suspension Geometry Basics [Archive] - Chevelle Tech

: Suspension Geometry Basics


Pete 67
Jun 9th, 08, 8:59 PM
Suspension Gurus,

Can one of you guys explain the basics of A body front suspension geometry to me. I did a search, but was unsuccessful in find a topic that dealt in simple layman's terms. After an ordeal today with 2 shops, I want to attempt to align my front end myself if possible.

The first place I went to had a truck on their alignment rack that needed a tranny. Didn't matter that I scheduled an appointment last week. Thanks for calling to tell me. :mad:

The next place I went to told me I needed an Idler arm & told me to come back when it was installed. Fine no problem, but tell your helper to get his greasy hands off my new paint!!!! :mad:

The bottom line is this, after doing all the work on this car myself, it was almost traumatic trusting unknown people to touch my car. I don't want to deal with that again. So now I want to do this myself.

The problem is, I don't have the slightest clue of how caster, or camber work together. Of the posts I've read, it says to set caster 1st, then camber. What exactly is caster? Does that mean how far back the tire sits in the wheel well? I've read posts that say to add positive caster to my stock set-up. How do I do that?

Next, how do I not screw up the caster while setting camber if I have to add or remove shims? :confused:

One thing I do understand is the concept of Toe-In, that seems basic enough.

Any simple advice is appreciated.

Thanks,

Pete

TronDD
Jun 9th, 08, 9:30 PM
I don't know how to do an alignment exactly, either. I'd like to know since it's one of the few things I still need to farm out and I'd rather do it myself, too, if I can.

Start with some terminology.
http://www.familycar.com/alignment.htm

Tim.

hbcruiser
Jun 9th, 08, 9:50 PM
This explains it pretty well but your going to need some tools to do it your self
http://www.familycar.com/Alignment.htm

hbcruiser
Jun 9th, 08, 9:52 PM
OOOOPs, Tim beat me to it

wagonman65
Jun 9th, 08, 11:14 PM
If you have any other questions talk with Derek69SS. He was a HUGE help for me when I needed to understand the A body suspension geometry, especially since I went with the SC&C stage 2 plus kit and lowering springs. I needed to know what exactly I was doing with my car before I did it. He is a suspension god.