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Thread: Electric Brake Booster and Power Steering

  1. #1
    Join Date
    Jan 2022
    Location
    Black Hills, South Dakota
    Posts
    60

    Default Electric Brake Booster and Power Steering

    I decided to give something different a try; I'm installing a Bosch iBooster and Denso electric power steering onto my truck.

    I think the hardest part with the brake booster will be hanging the brake pedal brackets and getting everything to move without binding. I'm also going to need a bar steel or aluminum spacer between the booster and firewall so I can bolt the pedal hardware on the inside. Wiring and lines should be easy work. I'll need to buy adapters to go from SAE to metric at the master cylinder.

    As far as the electric power steering goes, I just need to get everything connected, fab a mounting bracket, then wire it up. I'll be using the original manual steering, so I may need to rebuild or replace the steering gear box.

    I'll post updates to this thread as I can. I usually forget to take photos while I'm working.

    I'll be swapping out the original front and rear axle assemblies, transfer case and gas tank. I have a new kingpin Dana 60 going on the front and the rear will be getting a GM 14-bolt with a Detroit Locker and disc brakes. Engine is an aluminum block LM4 5.3L, transmission is a 2WD SM465, and the transfer case is a divorced NP205. The latter two are ready to go. I need to save up money to rebuild the engine. I'll be wiring the truck with an Infinitybox 3-cell kit. It will run on 12-volts. Lighting is LED and gauges are Speedhut.

    Not going with the military vibe as I will be putting a QTAC fire skid on the back.

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  2. #2
    Join Date
    Sep 1998
    Location
    North Central Wisconsin
    Posts
    11,537

    Default

    An interesting and well thought out plan...will be waiting for updates...Good Luck!!
    Lord send your Holy Ghost into our hearts and make the desire of our hearts Your Will.

    Pro-choice, that's a LIE, babies don't choose to die!!

  3. #3

    Default

    Sounds cool!!
    Come and take it
    Go work at joann fabrics if you can't shoot a gun

  4. #4
    Join Date
    Jan 2022
    Location
    Black Hills, South Dakota
    Posts
    60

    Default

    The toughest part is over. All I need to do is wire and attach the brake booster to the brake pedal. I'm replacing the brake lines and drivetrain, so I am not out of the forest yet. At some point, I'll be needing to get rid of the front and rear axles, transfer case, transmission, and driveshafts. Contact me if interested.


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  5. #5

    Default

    All that sounds very interesting. If you get the chance to post some pictures later that would be neat to see.
    Liz, covid, murdered 10/19/21

  6. #6
    Join Date
    Jan 2022
    Location
    Black Hills, South Dakota
    Posts
    60

    Default

    I made some progress with my electric power steering conversion. First, I put a new Borgeson rag joint (3/4" 36 spline, 1" DD) onto the steering box. I installed a Borgeson collapsible steering shaft. It is connected to a Borgeson U-joint (3/4" DD ,11/16 36 spline) then the Prius electric power steering unit. I fabricated a steel brace to hold the electric steering unit in place.

    So what you cannot see is that I put in a new nylon lower bearing. I pushed it in about 5". In front of the bearing is an exhaust reducer from 2" to 1.5". The reducer is pushed in 3/4". The electric power steering unit connects to the end of the steering column. The input shaft for the electric power steering will be connected to a shortened stock steering shaft. This must be cut to length and I haven't gotten to that step yet. Using hardened steel, I made a 5/8" to 3/4" coupling with holes for 3/16" diameter, 1" long pins. After everything is connected, I'll hook up the wiring from the electric power steering control module to a 40 amp fuse, ground, and 12v switch and fingers crossed, I have steering.

    Let me know if you have any questions. I'll post updates when I get further along. Thanks for reading. Mike

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  7. #7
    Join Date
    Jan 2022
    Location
    Black Hills, South Dakota
    Posts
    60

    Default

    Here are a few more photos...

    I forgot to mention, I purchased NOS upper and lower nylon bearings for the steering column from Vintage Power Wagons.

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