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Old 11-26-2007, 04:33 PM
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605 box camber/caster

Does any one know the correct camber and caster for a 59 Impala with a 605 box. The car tracks well but a little difficult to handle on wet and uneven roads. I have heavy sway bars front and rear and urethane bushings which help, but still needs something. I read an article a year ago which said the settings were different than the stock settings, but I can't find the article now. Please help, the car is driven 20,000+ miles a year.
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Old 11-26-2007, 06:00 PM
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Hi Bill!!

Long time no see any posts.

on mine it is currently>> -1/2 camber >> +1 caster (cause I can get no more)
Silly alignment guy set the toe at 0. Should be 1/16 to 1/8 total
Running 235/60-r-15 tires.

It wanders some, I am considering changing my box to the new one offered by CPP. Not today tho.

Bryan
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Old 11-26-2007, 06:04 PM
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Changing to a 605 box should have no efect on the original settings.Did you make any other changes to front suspension geometry?
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Old 11-27-2007, 09:49 AM
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As "powerrodsmike" has posted several times, and as I can attest to as well, this box needs additional caster to help it return to center.

I have not really been happy with mine, as there seems to be no 'feel' at cruise.
Also seems there is a lot of play in the box as well, (SEEMS-may not be)

Not that my car is undrivable---is probaly better than when new, it just seems to me that there is a lot of 'driving' going on, when I should just be 'cruising'.

I may have grown too accustomed to my T-Birds and Ranger with R&P.
But then my 79 C-10 can go miles without correcting on a good hiway.

Bryan
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Old 11-27-2007, 12:57 PM
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605 box camber/caster

Besides the 605 box I have made some changes to the front end, the disk brakes changed the geometry, the toe in had to be reset, I don't know what else was affected. The car has new springs all the way around and sits a little higher than stock, maybe that changes things. I'm getting ready to take for an alignment, the book says caster 0 +/- 1/2 a degree and camber 1/2 +/- 1/2 degree, but I know I read where that is different with 605. I would like to have that info. when the car goes in.

Bryan, my son drives a 59 Belair with stock non power steering, he got the play out of his steering by putting a u-joint from a Honda steering shaft to replace that upper joint on the Chevy shaft. Made a big difference.
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Old 11-27-2007, 09:06 PM
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605 box

Boy have I been down this road.I have a 57 ford wagon that I installed a Gearheads cruiser products modified 605.It was undriveable.Dialed in a LOT of caster,tires,etc.Put a r/p in and all ends well. These are things I learned; 1 If you remove sector you will notice that 605 boxes don't have a real gear to gear mesh.Sector moves a slide not a gear.2. Sector plate is weak[allum.] tends to flex and leak a o-ring.3 Many people sell/use 605's but they are a poor choice.If you disagree with this , I have one I will sell you.Put a rack in.
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Old 11-28-2007, 06:54 AM
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Bill,

I have the dropped spindles,
New springs
And 4-wheel disc.

Have them try to give you more than 1 deg of caster if possible.
(I have Air Ride's tubular arms that were supposed to give me 3 deg of caster but did not)---I also milled .125" from the control arm shaft to give more positive camber.

Apparently, neg camber is an issue with these cars. But I am happy with the neg 1/2 deg.

And also---I have an Ididit tilt column, vibration dampner and ujoints by borgeson. Absolutely no slop in the steering shaft at all.
But with the car shut off there is about 5" play in the steering wheel (15" wheel) before anything happens below

Bryan
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Old 11-28-2007, 07:35 AM
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59 Chevy 605 camber/caster

There one thing I need to mention, while under the car the other day with it sitting on the ground, my son turned the steering wheel and I could actually see the driver's side frame rail twist. It needs a piece to connect the frame rails to distribute that load, and stiffen this area. I don't think the original power steering put that much load on this area.
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Old 11-28-2007, 07:58 AM
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I talked to Treg at Durex power steering one day and he said that he has seen people have to put 4 or more degrees of caster in those cars to get the 605 box to feel even close to right.

I believe it has something to do with the steering arm ratio, that the cars originally equipped with a 605 box had shorter arms or a different steering axis inclination or something...but I have not measured anything yet to compare..

I played around with a couple of those boxes on the bench one day, it seems like they have a ton of internal friction or seal stiction, (yes that is a real technical term).

Try the longer upper arms.

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Old 11-28-2007, 09:14 AM
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Speaking of the frame flexing where box is mouted,I had a stock 62 P/S car and the frame cracked at the box mount,so it must be a weak link especialy like you said with the conv.
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Old 11-28-2007, 10:36 AM
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Dammit----now I have something else to look for

That section of the frame is boxed, not sure how it could be stiffened up.
not a lot of room to work in there as the 605 uses all the available space between the rails (from k-member to radiator).

Think I'm gonna check mine for that when I get home.

Bryan
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