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73-87 Chevy _ GMC Trucks => Crew Cabs => Topic started by: Crimsontide14 on May 25, 2015, 08:44:32 PM

Title: Brake Lines for 1991 V3500
Post by: Crimsontide14 on May 25, 2015, 08:44:32 PM

I am in the process of putting a lift on my 1991 Chevy V3500. While installing new brake lines to accommodate the lift, I damaged some of the factory brake lines. The original brake lines are pretty rusty and brittle. At this point, I am considering replacing all of the factory brake lines. Is there a company that makes good quality pre-bent brake lines for these trucks? Or am I better off buying the tools necessary and fabricating my own?

Title: Re: Brake Lines for 1991 V3500
Post by: LTZ C20 on May 26, 2015, 02:53:53 AM

There are a few companies that offer pre bent steel lines.

Title: Re: Brake Lines for 1991 V3500
Post by: roundhouse on May 26, 2015, 06:03:16 AM

I'd buy the pre bent ones if you can find em



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Title: Re: Brake Lines for 1991 V3500
Post by: Crimsontide14 on May 26, 2015, 10:15:14 PM

I have tried searching for a brake tubing kit for the V3500's but have come up short. Will the kits for the pre-88/K30 trucks work on the later V3500's?

Title: Re: Brake Lines for 1991 V3500
Post by: LTZ C20 on May 27, 2015, 12:39:47 AM

As far as I know yes they should, not sure tho. A K30 and a V3500 are the same thing, GM just changed the model coding (C/K or R/V) in the late 80s.

Title: Re: Brake Lines for 1991 V3500
Post by: Irish_Alley on May 27, 2015, 08:00:09 PM

dont know when but gm did have some trucks with RWAL. dont know if its only on the 88-98 models or if our trucks have it

Title: Re: Brake Lines for 1991 V3500
Post by: ehjorten on June 01, 2015, 02:04:55 PM

You couldn't get RWAL on a 1-ton.

Title: Re: Brake Lines for 1991 V3500
Post by: Irish_Alley on June 02, 2015, 01:22:05 AM

i remember a manual when i was working on my 91 crew cab it said something about rwal

Title: Re: Brake Lines for 1991 V3500
Post by: 87max on June 07, 2015, 04:09:57 PM

inline tube has what you want. I got mine in stainless from them.

Title: Re: Brake Lines for 1991 V3500
Post by: Jim_Hensley on February 09, 2016, 01:12:02 PM

Its not RWAL its a load sensing valve that applied more pressure to the rear wheels the heavier the load in the bed , starting in 87 I think.

Title: Re: Brake Lines for 1991 V3500
Post by: 87max on February 24, 2016, 01:03:32 PM

yes its a load sensing valve & from what ive read that valve can be tossed without issue, mine will be going in the trash.

Title: Re: Brake Lines for 1991 V3500
Post by: Irish_Alley on February 24, 2016, 01:09:12 PM

there was so many problems with the sensing valve that gm even said to toss it if there was any problems with the rear brakes