Difference between 86-87 brake lines
Thread Starter
Junior Member
Joined: Nov 2005
Posts: 90
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From: Racine, WI
Car: 1987 Trans Am GTA
Engine: Stealth Ram 383
Transmission: 700r4
Axle/Gears: 3.23
Difference between 86-87 brake lines
I've searched this forum for answers with no luck, but this seems like it would be a relatively common problem, so I apologize in advance if I'm being repetitious. I'm looking to replace the break lines on an 87 trans am (4 wheel disc), and I've talked to Summit, Classic Tube, Right Stuff Detailing, and a few others, with no luck. Classic Tube said he has a kit for an 86, but isn't sure if it will fit 87. I called NAPA and a local parts store and they both said the master cylinder, calipers, and hoses are the same from 82-92, so the 86 kit should work on an 87. The guy from classic tube gave me the part number for the 86 hard line kit (CA1048-ss), which I found, and the Braided hose (SBH6151), which I could not find.
The guy from Right Stuff Detailing said I need to find out if I have 1st design or 2nd design ABS, and if I have heavy duty or light duty rear axle lines. He told me to check the GM VIN identification website, but nothing I found dealt with the breaks or lines. Is this information I need to know?
The guy from Right Stuff Detailing said I need to find out if I have 1st design or 2nd design ABS, and if I have heavy duty or light duty rear axle lines. He told me to check the GM VIN identification website, but nothing I found dealt with the breaks or lines. Is this information I need to know?
Last edited by JamesC; Nov 28, 2016 at 09:17 PM.
Joined: Aug 1999
Posts: 19,282
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Difference between 86-87 break lines
Lines from around 83 or 84 through 88 should all be the same for your car. The hose kit should be four line (two at the front, one at the diff, one at the rear pass side).
JamesC
JamesC
Joined: Sep 2005
Posts: 27,996
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Difference between 86-87 brake lines
Right: in 84 the lines changed from SAE to metric and then were essentially the same up through 88. In 89 the only major change was the rear discs going from Saginaw to PBR which affects the rubber lines but none of the hard lines except for the ones on the axle.
You don't have ABS so that's not an issue.
Factory routing may be slightly different or some such. As far as hooking up to everything, they should be the same however.
You don't have ABS so that's not an issue.
Factory routing may be slightly different or some such. As far as hooking up to everything, they should be the same however.
Thread Starter
Junior Member
Joined: Nov 2005
Posts: 90
Likes: 0
From: Racine, WI
Car: 1987 Trans Am GTA
Engine: Stealth Ram 383
Transmission: 700r4
Axle/Gears: 3.23
Re: Difference between 86-87 brake lines
I started removing the front right break line, and found that it runs between the frame and the oil pan to the master cylinder. Looks like you have to pull the d*mn motor to get at the clamp. Anyone come across this?
Joined: Oct 2001
Posts: 12,228
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Difference between 86-87 brake lines
Thread Starter
Junior Member
Joined: Nov 2005
Posts: 90
Likes: 0
From: Racine, WI
Car: 1987 Trans Am GTA
Engine: Stealth Ram 383
Transmission: 700r4
Axle/Gears: 3.23
Re: Difference between 86-87 brake lines
Haha ok. Are there any tips or tricks to getting the lines out and back in, or do you have to pull the engine?
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Joined: Sep 2005
Posts: 27,996
Likes: 2,485
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Difference between 86-87 brake lines
Doesn't have to be "pulled"; just lifted an inch or so. (at least, when I've done it before)









