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Old Jul-31-08, 01:28 PM   #1
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Default TBSS Alignment specs

what is GMs spec for this? I dont want to hear "take it to the shop and they'll know" - I want to know the exact range of adjustment that GM gives for this truck.
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Old Jul-31-08, 01:34 PM   #2
 
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How to do a quick alignment on a tbss
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Old Jul-31-08, 01:41 PM   #3
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what about toe?
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Old Jul-31-08, 02:17 PM   #4
 
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'06 '07 '08 Trailblazer SS

Camber= -0.50 0.60
Cross Camber= 0.00 0.60
Left Caster= 4.25 0.60
Right Caster= 4.25 0.60
Cross Caster= 0.00 0.60
Thrust Angle= 0.00 0.40
Toe (Total)= +0.20 0.20
Steering Wheel Angle= -0.50 3.50
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Old Jul-31-08, 07:08 PM   #5
 
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You don't want to hear it, but a good front end mechanic, not a tech, doesn't need specs.
No 2 vehicles are mass produced the same.

Find a good front end shop. Not a dealer or chain store with a "Red Light, Green Light" machine.
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Old Aug-05-08, 11:55 PM   #6
 
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Quote:
Originally Posted by Warped View Post
You don't want to hear it, but a good front end mechanic, not a tech, doesn't need specs.
No 2 vehicles are mass produced the same.

Find a good front end shop. Not a dealer or chain store with a "Red Light, Green Light" machine.
I wouldn't let anyone align my front end who didn't have the specs or claimed they didn't need the specs.
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Old Aug-06-08, 03:51 AM   #7
 
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So all mass produced cars are exactly the same? If we dynoed everyone's stock TBSS all the numbers would be the same, right? I doubt it. Specs will get you in a range. Not necessarily perfect. It takes knowledge to get a front end set up right. What if your lower control arm wasn't stamped perfectly, and you set it up to "spec". You might have a tire not wear correctly. Or you could have a pull.

I could debate this forever, but we all know that everyone on here is an expert. And it's their way or no way.
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Old Aug-06-08, 05:42 AM   #8
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Quote:
Originally Posted by Warped View Post
What if your lower control arm wasn't stamped perfectly, and you set it up to "spec". You might have a tire not wear correctly. Or you could have a pull.
the alignment is measured at the wheel, it has nothing to do with measurements of the LCA. uneven wear and pulls are caused by know it all mechanics trying to eyeball the suspension components instead of using the correct equipment.

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I could debate this forever, but we all know that everyone on here is an expert. And it's their way or no way.
looking in the mirror agian?
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Old Aug-06-08, 06:59 AM   #9
 
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You don't live too far from me. Next time you need an alignment come to Fort Lauderdale and I'll pay for it. Then I can have 1 of our 2 alignment guys with 30 years of experience
between them , not total, show you how an alignment gets done.

And, I'll buy you lunch.
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Old Aug-06-08, 07:22 AM   #10
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I did alignments many years ago, We used the specs as a reference, Some people drove city,(change camber for crown in Chicago streets) some mostly highway,(flat surface) So I would set it up according to where they drive. These are things that were not taught in a class, (experience) Some of the old Fords, we change caster to get the fkn steering wheel to come back, Something else that wasn't in the book..............................
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Old Aug-06-08, 07:29 AM   #11
 
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Quote:
Originally Posted by ssprince View Post
I did alignments many years ago, We used the specs as a reference, Some people drove city,(change camber for crown in Chicago streets) some mostly highway,(flat surface) So I would set it up according to where they drive. These are things that were not taught in a class, (experience) Some of the old Fords, we change caster to get the fkn steering wheel to come back, Something else that wasn't in the book..............................
Same around here always added for more crown for the city folks, with the way my SS "tracks" with the 275/45's it would be a must to have it dialed in right.
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Old Aug-06-08, 07:54 AM   #12
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Quote:
Originally Posted by ssprince View Post
I did alignments many years ago, We used the specs as a reference, Some people drove city,(change camber for crown in Chicago streets) some mostly highway,(flat surface) So I would set it up according to where they drive. These are things that were not taught in a class, (experience) Some of the old Fords, we change caster to get the fkn steering wheel to come back, Something else that wasn't in the book..............................
this is the exact reason they give you a +/- number, adjustmets for road conditions can be made within the spec and still have the desired effect. but this is a whole different discussion than the above couple of posts are trying to start (you dont need specs ). Back when those older cars were new, people didnt want heavy steering and the wheel that went to center strong, so they were set with caster around 0 degrees they also wanted a suspension that felt like you were riding on a wet bag of dog shit, for the most part...

I dont know what this warped guys issue is, but insinuating that his shop is the only competent one in florida is laughable at best.
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Old Aug-06-08, 08:04 AM   #13
 
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I never said that about my shop. I'm sure it applies to shops like ours all over the country.
We didn't invent the alignment machine. We just know how to use it without instructions.

Calm down.
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Old Aug-06-08, 08:19 AM   #14
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Quote:
Originally Posted by Warped View Post
So all mass produced cars are exactly the same? If we dynoed everyone's stock TBSS all the numbers would be the same, right? I doubt it. Specs will get you in a range. Not necessarily perfect. It takes knowledge to get a front end set up right. What if your lower control arm wasn't stamped perfectly, and you set it up to "spec". You might have a tire not wear correctly. Or you could have a pull.

I could debate this forever, but we all know that everyone on here is an expert. And it's their way or no way.
I'm not trying to start any shit here, But all measurements are taken at the wheels, You could have hit something and bent a control arm, and still get it into specs, Thats why they have adjustments, to allow the tech, factory or alignment dude to make corrections to the front end because of all the possibilities of error (manufacturer) road abuse. Lowering your vehicle: DJM makes a kit to get your front end back to "Specs" ( gets your Camber back out ) "Spec" does not mean speculate......JMO, You still need someplace to start for Alignments, Unless you are doing some customizing (which is what I will do when I get to the suspension) Different vehicles have different characteristics per vehicle, Not every person wants there wheel to snap back, or ride like a Vette, etc.................................
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Old Aug-06-08, 08:37 AM   #15
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I've been calm... I asked a question to get an answer. Sorry.

an alignment tech can like the way a vehicle feels at one setting, and I might not. thats why I always have a hand in the adjustments on my vehicles. my last truck had 50k miles on a set of soft 20" bridgestone tires, and was still not to the wear indicators when I sold it. thats saying alot, because 4wd trucks are known to eat tires from the factory and I drive like an asshole.
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Old Apr-08-17, 11:01 PM   #16
 
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Is this for the AWD or the 2WD or is it the same specs?

Quote:
Originally Posted by JAY4SPEED View Post
'06 '07 '08 Trailblazer SS

Camber= -0.50 0.60
Cross Camber= 0.00 0.60
Left Caster= 4.25 0.60
Right Caster= 4.25 0.60
Cross Caster= 0.00 0.60
Thrust Angle= 0.00 0.40
Toe (Total)= +0.20 0.20
Steering Wheel Angle= -0.50 3.50
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