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  #11  
Old 08-07-2007, 12:02 PM
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Thanks "bcomo" for that correction. I don't how I remember some of this stuff, it just pops out there sometimes (the T-Bird info).....
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  #12  
Old 08-07-2007, 01:28 PM
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Let's take this one at a time:

John:

This is working out good so far. Look at this:

FRONT:
Your 205-70-15 Tire height = 26"
My stock 8.50-14 tire height = 27 1/2"

My tires are +1 1/2" higher
Your wheel well height 27" + 1 1/2" = 28 1/2" (same as mine).
So far, it would look like different front springs for the 352 and 430, keeping the same ride height.

We need a few more 60's to verify this.

REAR:
My ROT sheet shows "Heavy Duty" rear suspension. That means that I either have more leafs, or different leafs. My rear ride height (22") is probably higher because of that. So, don't look at mine for a standard height in the rear.

I have 7 leafs in the rear.

John: Could you count the number of leafs in your 60. I know that yours was lowered, but this would help.

ANYONE else with a 60, could you also post the number of leafs in the rear.


Fomoco59:

Your 59, 352 measurements are looking good.

Your stock 8.00-14 tires are -1/2" shorter than mine. So, if we add +1/2" to your wheel well front and back, it would be:

Front:
28" front well + 1/2" = 28 1/2" (same as mine and John)

Rear:
20" rear well +1/2 " = 20 1/2"

John's was lowered at 18". Mine is factory higher, and is 22". Your 20" might be the standard correct height for the 352. The 430 would be +1/2" higher because it came std with 1/2" higher tires-- we'll see if we can get more posts.

Fomoco59 - Can you please post the number of leafs in the back?

6TB1RD:

See what you come up with.

Thanks to all so far.
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  #13  
Old 08-07-2007, 06:23 PM
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I have 6 leaves
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  #14  
Old 08-07-2007, 07:40 PM
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Tire size P205 75R 14

Drivers side front
26.75
Passenger front
27.50
Drivers rear
17.75
Passenger rear
18.00

Taking in consideration of the tire inflation I also took measurements per my 1988 ranger shop manual.

Drivers side front
15.25
Passenger side front
15.75
same half inch different as ground to finder measurement. this telling me the spring may be collapsing on the drivers side

Rear center hub to finder was the same both sides of 5.5"

number of rear leafs
6 and a helper
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  #15  
Old 08-07-2007, 08:14 PM
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Thanks tbirds8. That checks out.

I found the specs on the front and rear springs. This will certainly help if you do a complete suspension rebuild and want to check your springs against original measurements.

FRONT SPRINGS:

58, HT/Conv 332,352: Free height 15.50", Load height 9.60"


59, HT/Conv 352: Free height 15.75", Load height 9.60"
(Replacement spring free height 15.50" Dia. Wire = .710)

59, HT/Conv 430: Free height 15.75", Load height 9.60"
(Replacement spring free height 15.50" Dia. Wire = .710)


60, HT/Conv 352: Free height 15.75", Load height 9.60"
(Replacement spring free height 15.50" Dia. Wire = .710)

60, HT/Conv 430: Free height 15.50", Load height 9.60" Dia. Wire = .710


It appears that if your springs are within 15.50 to 15.75 Free height, or close to 9.60 load height -- you're OK.


REAR SPRINGS:

58, HT/Conv All Eng: Coil Spring, 17.48" Free height, 10.31" Load height

59-60 HT/Conv All Eng: Leaf Springs (6 Leafs), 55" Spring Length (shackel to shackel) at Normal Load. Note: Factory "Heavy Duty Springs" (7 Leafs) 55" Spring Length.
.
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  #16  
Old 08-07-2007, 09:00 PM
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Are you sure about the 1/2" difference? If the tire height is 1/2" different that means 1/4" different in ride height as only have the height is 'under' the car so to speak.

According to Coker, the 8.00 is about 27.5" tall and the 8.50 is 28.1" tall. That may be unloaded, so the tire may compress a bit. Even so, that's about .6" difference in diameter, or .3" in radius which would effect the ride height.

My springs are out of my car and the car's up in the air (front wheel well - 35" ). The springs are the same height at exactly 15.75", so your specs (and my springs!) seem right.
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  #17  
Old 08-07-2007, 09:11 PM
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6TB1RD:

FRONT:
Your P205 75R 14, and John's 205-70-15 Tire heights = 26"
The stock 8.50 x 14 tires for 430 would be 27 1/2"

Your Average front wheel well height was 27 1/4"
Add 1 1/2" to your wheel well height gives 28 3/4"

That's within 1/4' of what we all have so far.

REAR:

Your 17.75"-18.00" rear measurement is what John had, which you already know is not what it should be.

I posted the specs on the front and rear springs for the 58-60. If that's correct, then you will have a measurement on your rear springs of more than 55" from shackel to shackel.

Fomoco59 has a 20" rear height that looks right if we can get a few more posts to see. Next time he's under the car, maybe we can get him to confirm that 55" shackle to shackle distance since his looks good.
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  #18  
Old 08-07-2007, 09:51 PM
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dgs:

You are correct: 8.0 is 27.5 and 8.5 is 28.1

The measurement asked for was tire "height" on the ground, so the -1/2" is all on the bottom.

Example: Fomoco59 gave a "tire height" of 27" on the ground with 8.0 x 14 even though the Coker diameter is 27.5"

If we can get close to within + or - 1/2" I'd be happy

Your front spring height is great. Those specs are from the Vintage Thunderbird Club Volume 3 of the 58-60 Factory Specs.

Yours is exactly the situation where those specs come in handy; not after you put it back together--right? Since I'm going to do the same thing, I need to know too.

I don't know how close you are to finishing; but could you post your measurements afterwards? It would be nice to see what a completely rebuilt front end measures out to.
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  #19  
Old 08-08-2007, 12:26 AM
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Quote:
Originally Posted by bcomo View Post
The measurement asked for was tire "height" on the ground, so the -1/2" is all on the bottom.
Hmmm. Still not sure we're talking the same thing, but OK. I still think that you need to add only half of that to the height of the body at the fender openings.

Quote:
Originally Posted by bcomo View Post
Your front spring height is great. Those specs are from the Vintage Thunderbird Club Volume 3 of the 58-60 Factory Specs.

Yours is exactly the situation where those specs come in handy; not after you put it back together--right? Since I'm going to do the same thing, I need to know too.
Oh, I'm thrilled you found that. One of my big debates was replacing the springs. I had decided not to since the car seemed to have the right ride height and the springs are the exact same height. This seals it.

Quote:
Originally Posted by bcomo View Post
I don't know how close you are to finishing; but could you post your measurements afterwards? It would be nice to see what a completely rebuilt front end measures out to.
Sure, but I'm not real close. I've still got to get the ball joints drilled out, then rebuild the steering control valve, replace the steering lines and the idler arm bushings. Oh yeah, I haven't actually ordered those parts yet.

Then there's sandblasting & painting the A arms and putting it all back together.
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  #20  
Old 08-08-2007, 07:31 AM
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Quote:
Originally Posted by bcomo View Post
Fomoco59:


Fomoco59 - Can you please post the number of leafs in the back?
I have 5 leafs.
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