Suspension and Chassis Questions about your suspension? Need chassis advice?

track arm brace

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Old May 25, 2025 | 09:23 AM
  #1  
Bobby Suth's Avatar
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From: tn.
Car: 1990 firebird,1989 Iroc z,1986 fire
Engine: 3.1lt,5.7tpi,3.1mpfi
Transmission: auto,auto
Axle/Gears: 273?277
track arm brace

on the back of our cars, there are 2 braces that go from driver side to passanger side. according to the shop manule they are the tracking braces. the lower one is the track bar and upper one is track bar brace.the upper one is famous for the bolt to seaze up in it and not be able to beat it out. i couldnt even press it out with a 20 ton press. cutting the bolt damages the weld as what happen on this one. I can't find after market replacments other than relocation type. they are stupid exspensive.does anyone make them. perferably with a grease zert to help lubricate this pivit point. overlook my spelling too.
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Old May 25, 2025 | 10:34 AM
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Tom 400 CFI's Avatar
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Car: '92 Corvette, '89 1/2-a-'Vette
Engine: LT1, L400
Transmission: ZF6, T5
Axle/Gears: 3.45, 3.31
Re: track arm brace

Originally Posted by Bobby Suth
on the back of our cars, there are 2 braces that go from driver side to passanger side. according to the shop manule they are the tracking braces. the lower one is the track bar and upper one is track bar brace.the upper one is famous for the bolt to seaze up in it and not be able to beat it out. i couldnt even press it out with a 20 ton press. cutting the bolt damages the weld as what happen on this one. I can't find after market replacments other than relocation type. they are stupid exspensive.does anyone make them. perferably with a grease zert to help lubricate this pivit point. overlook my spelling too.
Zerk. Grease zerk. Sorry, can't help it.

The upper brace doesn't have a pivot point as I recall. It's basically little more than a cross car brace. Not sure what you'd be using a 20 ton press on that thing, for? Are you talking about the red bar in this pic, or the black C-Channel brace?

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Old May 25, 2025 | 10:44 AM
  #3  
Chet's Avatar
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Car: GTA
Engine: L98
Transmission: 700R4
Re: track arm brace

Here's an aftermarket one that requires minimal modification: https://www.swracecars.com/products/...brace-chromoly
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Old May 25, 2025 | 12:28 PM
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Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: track arm brace

I don't know what kind of goofery you're trying to do but there is no bushing to press out. It's just a bar held in place by bolts.

S&W has no crook in it and won't clear exhaust.
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Old May 25, 2025 | 01:58 PM
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Bobby Suth's Avatar
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From: tn.
Car: 1990 firebird,1989 Iroc z,1986 fire
Engine: 3.1lt,5.7tpi,3.1mpfi
Transmission: auto,auto
Axle/Gears: 273?277
Re: track arm brace

the black brace at the top. 3 bolts fasten it to the frame on driver side. one bolt on passanger side got froze into the sleave it runs thru. I had to cut the bolt on both sides to get it out of the way to drop the tank. I tried using the press to get the remaining part of the bolt out. it's bigger on one end than the other. so it only can come out one way
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Old May 25, 2025 | 04:20 PM
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Car: '89 Firebird
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Transmission: T56
Re: track arm brace

Right, the shank is stepped and will drift out only towards the bolt head. Sometimes an induction bolt heater is handy to loosen corroded parts, and safer than a flame near gas tank.

If you want to replace with a common bolt then you can ream out the hole uniform but the metal is very hard and you'll need a really good bit.
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Old May 25, 2025 | 08:08 PM
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Bobby Suth's Avatar
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From: tn.
Car: 1990 firebird,1989 Iroc z,1986 fire
Engine: 3.1lt,5.7tpi,3.1mpfi
Transmission: auto,auto
Axle/Gears: 273?277
Re: track arm brace

thank you QwkTrip. I had thought about heat. other than a small torch all I have is a heat gun. I will table this one and see how well it goes getting one off one of my parts cars. if an after market only cost 100 dollars I'd go for it. but 300 is a little to high. thank you all for your help



















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