Howdy again!
I've been searching for a while, so forgive me if this has been answered, but I'm trying to find out the size of the brake lines for my '05 SE.
I haven't had any issues, but I want to replace them before winter this year.
I measured with a cheap caliper (with dying batteries, because that's all I could find today) and it looks like the lines from the master cylinder to the ABS pump are 1/4", and the lines from the ABS pump to the brakes are 3/16", Does this sound right?
Also - How much fluid is needed? I know I will need extra with flushing the fluid and bleeding, but I'm really not sure how much to have on hand for this.
This is my first time doing any sort of brake line, but I do have a family member helping me who has more experience with this, so I am fairly confident we will be successful.
Brake Line sizes?
- harofreak00
- Administrator

- Posts: 26022
- Joined: Mon May 19, 2008 6:04 pm
- Year and Trim: 2004 GXP - plus a handful of other Bonnevilles
- Location: Browerville, MN
- Contact:
Re: Brake Line sizes?
Correct. 1/4" from the master to the pump, 3/16" for everything else. I'd buy a quart or two of brake fluid.
Andrew - owner/operator of Bonnevilles Unlimited

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 57k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 115k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 280k | Official Bonneville Hauler

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 57k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 115k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 280k | Official Bonneville Hauler
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zombie112
- SLE Member

- Posts: 25
- Joined: Fri Dec 11, 2015 6:54 pm
- Year and Trim: 2005 SE
- Location: Niagara Falls, NY
Re: Brake Line sizes?
Thanks! This didn't go well. One of the threads on my abs pump is now stripped. PMing you
Edit -
Still alive and back on the road! Ended up taking to a local mechanic to take care of. Had the wrong thread fittings on the break lines. Living and learning and paying for it lol
Edit -
Still alive and back on the road! Ended up taking to a local mechanic to take care of. Had the wrong thread fittings on the break lines. Living and learning and paying for it lol

