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Underside paint color questions

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Old Jul 14, 2010 | 12:36 PM
  #1  
Roc THIS's Avatar
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From: Plainfield IL
Car: 87 Yellow Iroc-Z
Engine: 5.7 TPI
Transmission: 700R4
Axle/Gears: BW 9 bolt
Underside paint color questions

Dropped my rear end to put new break lines on it and decided while it was out I would restore all the other random parts back there . My qusetion is , what color would the following parts be when the car rolled out of the factory ?

Drive shaft
Torque arm
Springs
Sway bar
Sway bar hardware

I figured out some of the other parts but these have a layer of typical surface rust so I cant tell. Thanks for any info guys.

Last edited by Roc THIS; Jul 14, 2010 at 01:19 PM.
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Old Jul 14, 2010 | 01:17 PM
  #2  
AmorgetRS's Avatar
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Re: Underside paint color questions

History & Restoration is a better place to ask this question, so I moved it there.
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Old Jul 14, 2010 | 01:30 PM
  #3  
Roc THIS's Avatar
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From: Plainfield IL
Car: 87 Yellow Iroc-Z
Engine: 5.7 TPI
Transmission: 700R4
Axle/Gears: BW 9 bolt
Re: Underside paint color questions

That works .
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Old Jul 14, 2010 | 01:59 PM
  #4  
DJP87Z28's Avatar
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From: Florida
Car: 1987 Black IROC-Z (SOLD)
Re: Underside paint color questions

Originally Posted by Roc THIS
Dropped my rear end to put new break lines on it and decided while it was out I would restore all the other random parts back there . My qusetion is , what color would the following parts be when the car rolled out of the factory ?

Drive shaft
Torque arm
Springs
Sway bar
Sway bar hardware

I figured out some of the other parts but these have a layer of typical surface rust so I cant tell. Thanks for any info guys.
Unpainted bare metal, that is why those items have so much rust.
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Old Jul 14, 2010 | 02:08 PM
  #5  
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
Re: Underside paint color questions

Originally Posted by DJP87Z28
Unpainted bare metal, that is why those items have so much rust.
Not exactly. Most of that stuff was painted. The driveshaft and differential housing are unpainted, but most of the rest of those items are all various shades of satin/semi-gloss black. The sway bar mounting stuff may have been a zinc plated or uncoated steel as well.
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Old Jul 15, 2010 | 09:58 AM
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Re: Underside paint color questions

Drive shaft - bare steel if it's not aluminum
Torque arm - Semi-gloss or 'chassis' black
Springs - semi-gloss or 'chassis' black
Sway bar - semi-gloss or 'chassis' black
Sway bar hardware - phosphate coating, looks flat black.
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Old Jul 15, 2010 | 01:33 PM
  #7  
Roc THIS's Avatar
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From: Plainfield IL
Car: 87 Yellow Iroc-Z
Engine: 5.7 TPI
Transmission: 700R4
Axle/Gears: BW 9 bolt
Re: Underside paint color questions

Alright thanks guys . Exactly the info I needed
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Old Jul 15, 2010 | 07:39 PM
  #8  
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
Re: Underside paint color questions

Actually there is also some markings on most of those suspension pieces as well.. They would mark with a paint pen that things were torqued. The rear diff often had yellow paint on at the point of the Universal joint where the pinion attached to the drive-shaft. There was a Green spot on the toque arm, the ends of the pan-hard arm had light blue ends...

Here is the thread https://www.thirdgen.org/forums/hist...-markings.html

I would like to point out that the rear axle was PAINTED BLACK when you had the B&W (Aussie) 9 bolt), however it was unpainted when you got the Saginaw 10 Bolt.

The Drive-shaft to the best of my knowledge was always unpainted...

Hope that helps...

John
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