alignment opinions. - Chevelle Tech
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post #1 of 43 (permalink) Old Dec 6th, 19, 8:41 PM Thread Starter
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alignment opinions.

took the 70 to the alignment shop this afternoon
I was told 1 side needed more shims removed but they already pulled all the shims. maybe offset shafts are in order? It drives alot better than when I drove it over. Originally i swapped the camaro spindles for chevelle spindles and basically eyeballed the alignment. jim
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Jim

70 chevelle, SS clone 454 4 speed 3.31 12 bolt posi
71 camaro. (owned since 1978!) 454-th400 3.07 12 bolt
66 chevelle 350 4 speed 3.55 12 bolt and a newly added 142 wieand blower
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post #2 of 43 (permalink) Old Dec 6th, 19, 9:08 PM
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Re: alignment opinions.

Looks like they adjusted the toe and called it a day. I wouldn't be very happy.

That negative caster figure tells me the alignment shop doesn't care what you're car NEEDS, they're going to adjust until the computer numbers turn green.
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post #3 of 43 (permalink) Old Dec 6th, 19, 9:28 PM
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Re: alignment opinions.

Quote:
Originally Posted by Tommy the Cat View Post
Looks like they adjusted the toe and called it a day. I wouldn't be very happy.

That negative caster figure tells me the alignment shop doesn't care what you're car NEEDS, they're going to adjust until the computer numbers turn green.
You're so right! That's why I don't contract alignment shops. Been through this a couple times, never again. $100ish down the toilet..
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post #4 of 43 (permalink) Old Dec 6th, 19, 9:34 PM
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Tom
 
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Re: alignment opinions.

In their defense, that's probably what they're told to do. As a former chassis tech we were instructed to get it in the green as quick as possible. I never did it myself but I had seen guys lift or pull down on a bumper and have someone hit print while the numbers were green.

I do my own alignments at home now.
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70 Camino...Roller

69 Malibu Stock 307, Reverse Manual TH350, 4,500 Stall Edge Converter, 4.56 Spool 35 Spline 12 Bolt

76 C20 VortecPro 496 628HP 655 lb/ft TH400 Edge Converter, 4.10 14 bolt
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post #5 of 43 (permalink) Old Dec 6th, 19, 9:57 PM Thread Starter
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Re: alignment opinions.

I did notice on the drivers side, front 0 shim, back has maybe a .090 shim, the pass side has a shim up front and 2 in back, so they were actually adjusting something. as I was just out there looking around the car, I noticed I have 2 different front tires. (same size) 1 made in 2011 the other made on 2003!
so I guess the tires come off in the morning for a new pair of front tires. Rear tires were replaced last week. jim
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Jim

70 chevelle, SS clone 454 4 speed 3.31 12 bolt posi
71 camaro. (owned since 1978!) 454-th400 3.07 12 bolt
66 chevelle 350 4 speed 3.55 12 bolt and a newly added 142 wieand blower
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post #6 of 43 (permalink) Old Dec 6th, 19, 10:23 PM
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Eric
 
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Re: alignment opinions.

$100 for an alignment? All they did was take a bit of camber out of the right side (which was perfect) and adjusted toe, that's it. You have too much camber on the left side it needs to be closer to -.5 like on the right. Your caster needs to be positive. Your car drove like crap going in because your toe was off. The end result on your chart isn't even within the stock specs set into the machine for cross camber.

When I get an alignment I tell them what I want and I stand there and make sure it gets done that way. If they won't let me, then I go to a place that will.

You're just jealous because you can't hear the voices!

1967 Olds Cutlass 468 BBC/T400
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post #7 of 43 (permalink) Old Dec 6th, 19, 10:35 PM Thread Starter
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Re: alignment opinions.

it was $59.95. is it possible the frame is sagging? it drives a lot better than before, I really dont put too many miles on these cars. I guess my main question is... is the numbers posted close enough for a 50 year old car? it tracks straight. jim

Jim

70 chevelle, SS clone 454 4 speed 3.31 12 bolt posi
71 camaro. (owned since 1978!) 454-th400 3.07 12 bolt
66 chevelle 350 4 speed 3.55 12 bolt and a newly added 142 wieand blower
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post #8 of 43 (permalink) Old Dec 6th, 19, 11:03 PM
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Re: alignment opinions.

You have something going on with left side. Could be sag. Could be worn parts but the tech hopefully checked it before doing any work. Mismatched tires doesn't help.

70 Camino...Roller

69 Malibu Stock 307, Reverse Manual TH350, 4,500 Stall Edge Converter, 4.56 Spool 35 Spline 12 Bolt

76 C20 VortecPro 496 628HP 655 lb/ft TH400 Edge Converter, 4.10 14 bolt
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post #9 of 43 (permalink) Old Dec 6th, 19, 11:53 PM Thread Starter
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Re: alignment opinions.

if I remember right, the front end was rebuilt about 14 years ago. cant say if the cars ever been hit. when I bought it, it was only the body shell, 2 doors and a trunk lid. the guys I bought it from parted the car out and stuck 2nd gen camaro spindles on it to keep it rolling. jim

Jim

70 chevelle, SS clone 454 4 speed 3.31 12 bolt posi
71 camaro. (owned since 1978!) 454-th400 3.07 12 bolt
66 chevelle 350 4 speed 3.55 12 bolt and a newly added 142 wieand blower
Jim Mac is offline  
post #10 of 43 (permalink) Old Dec 7th, 19, 5:24 AM
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Re: alignment opinions.

HI
Caster
The more pos the caster
[top ball joint rearward more than the bottom ]
Heavier steering
Vehicle stops wandering [car feels more stuck to the road ]
steering wheel returns to straight a lot better after turning
If the road is cambered for water drainage caster canbe upto 1/2 difference side to side to help the car very slightly drift up the camber in the road .
Car will pull/drift to the side least negative caster ie the more positive spec

Camber
camber promotes better handling
Try to run as much camber as possible as specs allow
To counteract camber in road
In USA ..Set drivers at "0" deg and passenger to neg -1/4 deg

Always use wheel alignment specs by car maker for stock style suspensions not something invented at the local shop


Setting cross or having camber and caster split is virtually unnoticeable when driving
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post #11 of 43 (permalink) Old Dec 7th, 19, 8:01 AM
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Re: alignment opinions.

Best to run positive caster but not were the rear bolt has a plie of shims and the front has none.

I would buy a pair of adjustable upper control arms from SC&C. Have them put the .9 tall Howe ball joint on them with the heavy duty adjusting sleeve. That way you will be able to adjust that car any way you like. Those uppers alone will add 4 degrees positive caster.

I find these cars like the following alignment specs.

-Passenger side; Positive caster +6.5/ Negative camber -.25/ Toe in 1/32..

-Drivers side; Positive caster +6/ Negative camber -.25/ Toe in 1/32....

When you bring up the positive caster you can lower the negative camber. The flatter you have the wheel the smoother and it goes down the highway. Having a lot of camber thrust makes turning fun but it makes a car squirrelly going down the highway. Turning up the caster gives you the camber thrust but only during turns when you want it.
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post #12 of 43 (permalink) Old Dec 7th, 19, 8:38 AM
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Re: alignment opinions.

Frankly Jim, if your happy with it I would leave it alone. Everytime I got my car aligned on the rack I ended up changing everything to make it feel better. Even though the numbers on the spread sheet were perfect the car handled like hell.. Once I adjusted everything by feel then it handled and rode nicely.. One time I had my buddy put it on his rack even though it handled perfectly. I wanted to see where the numbers were, sure enough, the numbers were all over the place but the car handled perfectly.
Maybe that's what your garage did, they aligned it by feel since you like the way it handles.
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post #13 of 43 (permalink) Old Dec 7th, 19, 3:17 PM Thread Starter
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Re: alignment opinions.

I went and had new tires installed this morning. world of difference with 4 new tires, alignment etc. looking back, this car never had new tires since I've owned it. jim
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Jim

70 chevelle, SS clone 454 4 speed 3.31 12 bolt posi
71 camaro. (owned since 1978!) 454-th400 3.07 12 bolt
66 chevelle 350 4 speed 3.55 12 bolt and a newly added 142 wieand blower
Jim Mac is offline  
post #14 of 43 (permalink) Old Dec 14th, 19, 12:14 PM
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Re: alignment opinions.

Quote:
Originally Posted by hydro462 View Post
Best to run positive caster but not were the rear bolt has a plie of shims and the front has none.

I would buy a pair of adjustable upper control arms from SC&C. Have them put the .9 tall Howe ball joint on them with the heavy duty adjusting sleeve. That way you will be able to adjust that car any way you like. Those uppers alone will add 4 degrees positive caster.

I find these cars like the following alignment specs.

-Passenger side; Positive caster +6.5/ Negative camber -.25/ Toe in 1/32..

-Drivers side; Positive caster +6/ Negative camber -.25/ Toe in 1/32....

When you bring up the positive caster you can lower the negative camber. The flatter you have the wheel the smoother and it goes down the highway. Having a lot of camber thrust makes turning fun but it makes a car squirrelly going down the highway. Turning up the caster gives you the camber thrust but only during turns when you want it.
I too had a recent front end alignment and now it feels real ďtwitchyĒ. Lots of steering wheel movement to keep the car straight.
I donít have the alignment readout with me, itís at my shop but Iíll check it later.
Are your recommended specs for use with the taller ball joints or just Chevelles in general? I have full Hotchkis suspension and sway bars and dropped spindles.
Iím wondering if I should go back and have it done again.

66 Chevelle hardtop - LFX 3.6 liter 4 Cam V6/6L50 6 speed auto trans, 3.07 10 bolt, full Hotchkis suspension, Wilwood 4 wheel discs, white with red interior, cowl hood.
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post #15 of 43 (permalink) Old Dec 14th, 19, 12:59 PM
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Re: alignment opinions.

If it was recently done, then bring it back to the alignment shop and have it rechecked and/or corrected. There is a guarantee on alignments to make the car drive straight.

You're just jealous because you can't hear the voices!

1967 Olds Cutlass 468 BBC/T400
1963 Plymouth Fury 440/Torqueflite
2007 Ford Mustang GT (momma's car)
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