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08-24-2020, 08:38 PM
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#1 |
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Registered User
Join Date: May 2013
Location: Mississippi
Posts: 501
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3/4 ton and 1/2 ton Hard brake lines the same?
I’m in the process of replacing the brake lines on my 87 R20 Suburban.
I only need the front lines. I contacted LMC and they said they could not guarantee their 1/2 ton lines would fit my 3/4 ton truck. Would they be the same? I am talking about the pre-bent hard brake lines from the proportioning valve to the rubber brake hoses.
__________________
 1987 R20 Suburban LQ4/4L80e swap: http://67-72chevytrucks.com/vboard/s...d.php?t=693824 |
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08-25-2020, 09:23 AM
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#2 | |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,066
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Re: 3/4 ton and 1/2 ton Hard brake lines the same?
Quote:
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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08-25-2020, 10:48 AM
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#3 |
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Moderator
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,977
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Re: 3/4 ton and 1/2 ton Hard brake lines the same?
Likely the same diameter hardline and fittings. The length of the hardlines and the hoses may be slightly different.
The difference in the systems is the booster, diameter & stroke of the master cylinder, diameter of the caliper pistons, and diameter of the wheel cylinder pistons. If the LMC lines are steel I'd look in another direction. You want Stainless or Ni-Copp line.
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1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. |
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08-26-2020, 08:19 AM
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#4 |
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Registered User
Join Date: Apr 2012
Location: Chatt Tn
Posts: 982
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Re: 3/4 ton and 1/2 ton Hard brake lines the same?
They are the same.
__________________
88 military v30 crewcab shortbed 5.9 cummins, nv4500, 205 86 k30, 89 diesel burb, 76 gmc pathfinder 71 longbed 5.3 4l80 http://67-72chevytrucks.com/vboard/s...d.php?t=522535 |
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08-26-2020, 10:48 AM
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#5 |
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Registered User
Join Date: May 2013
Location: Mississippi
Posts: 501
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Re: 3/4 ton and 1/2 ton Hard brake lines the same?
Thank you everyone for the help.
This forum is the best!!!!
__________________
1987 R20 Suburban LQ4/4L80e swap: http://67-72chevytrucks.com/vboard/s...d.php?t=693824 |
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