jtbartsch
Junior Member
- Joined
- Feb 1, 2024
- Posts
- 4
- Reaction score
- 2
- Location
- Overland Park, KS
- First Name
- Joseph
- Truck Year
- 1986
- Truck Model
- K10
- Engine Size
- 350, 5.7L
Hi all, I'm a frequent visitor to this forum when in need of information. Currently in the midst of a rear end rebuild and could use some help. (This will be my first time posting so I'll try to keep this concise.) Upon tear down of the rear end, the rear brake lines were too rusted and broke off when removing rear wheel cylinders. I have since gotten new ones rebent and rerouted from both rear wheel cylinders to the T union above the pumpkin. When I went to bleed the brakes, starting on rear passenger side of course, only a trickle of brake fluid was produced. Found that it could be because of the loss of fluid during the tear down that I had triggered the proportioning valve piston to slide over. I have further assessed this by bleeding the front brake with a helper to try to get it to recenter the piston with no luck after trying to bleed the rear passenger brake again. My test light confirms this as it shows there is ground. (See Picture) I'm thinking that it might be gummed up and having a hard time recentering. I pushed on the pin/button on the left of the unit but to my knowledge this would only work if it had been the front brake lines needing the fluid to be stopped. Currently, I'm at a bit of a loss on what I should do next. Do I buy a new part and risk overseas quality? Do I remove and try to move it manually after removing plastic plug? Is there anything else I can do that I have not already done. Thanks for any insight you all can provide. Truck has front disc brakes & rear drum brakes (13").
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