Lowering Back of Pug 405
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  1. #1
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    Default Lowering Back of Pug 405

    How many splines would be required to lower the back of a Pug 405 35mm? I would be happy with anywhere between 25 & 45mm and then lower the front to match.

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  2. #2
    1000+ Posts PeterT's Avatar
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    that's not how it's done. You need to make some solid dummy shock absorbers that put the car at the height you desire. Then slide the torsion bars back in where ever they fit.

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  3. #3
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    Default Is this what needs to be done??

    1. Jack up the rear of the car and remove a rear shock absorber.
    2. Lower the rear of the car to the desired ride height.
    3. Measure the distance between to upper and lower shock mounts. Make a solid shock to this length.
    4. Fit the 'solid' shock absorber.
    5. Remove the arm from the spline and reinsert where it fits.
    6. Remove & replace the solid shock with the original.
    7. Repeat steps 1,4,5 & 6 for the other side.

  4. #4
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    Quote Originally Posted by CVDSGSCX
    1. Jack up the rear of the car and remove a rear shock absorber.
    2. Lower the rear of the car to the desired ride height.
    3. Measure the distance between to upper and lower shock mounts. Make a solid shock to this length.
    4. Fit the 'solid' shock absorber.
    5. Remove the arm from the spline and reinsert where it fits.
    6. Remove & replace the solid shock with the original.
    7. Repeat steps 1,4,5 & 6 for the other side.
    How does this work, wouldn't the car drop on its suspension when you remove the dummy shock absorber?
    I have done this by measuring and comparing heights with the suspension on full droop, not ideal but I can't see how the dummy shocker idea works as you would slide the torsion bar in under no tension then the car will drop further as the dummy shocker is removed and the car is placed on the ground.
    If you do one side at a time the antiroll bar will have an effect, this should be disconnected as well.

    Graham

  5. #5
    Fellow Frogger! Roland's Avatar
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    Quote Originally Posted by CVDSGSCX
    1. Jack up the rear of the car and remove a rear shock absorber.
    2. Lower the rear of the car to the desired ride height.
    3. Measure the distance between to upper and lower shock mounts. Make a solid shock to this length.
    4. Fit the 'solid' shock absorber.
    5. Remove the arm from the spline and reinsert where it fits.
    6. Remove & replace the solid shock with the original.
    7. Repeat steps 1,4,5 & 6 for the other side.

    I'd like to know the answer to this question as well (see Graham's comment above) as I want to raise the back of my 405 a tweak mainly cos I carry a bit of gear in the rear 99% of my travels.
    Ta
    Roland

  6. #6
    1000+ Posts alan moore's Avatar
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    Have rear of car on body stands on level ground.

    Remove shocks.

    Measure distance to ground from centre of hub.

    Remove torsion bar.

    Move rear arm up distance to be lowered, and set in place with stand.

    Refit torsion bar. You may have to move the arm up another couple of mm
    to fit the bar.

    Refit shocks.

    I have used this method many times with no hassles, and even ride height.
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  7. #7
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    Quote Originally Posted by alan moore
    Have rear of car on body stands on level ground.

    Remove shocks.

    Measure distance to ground from centre of hub.

    Remove torsion bar.

    Move rear arm up distance to be lowered, and set in place with stand.

    Refit torsion bar. You may have to move the arm up another couple of mm
    to fit the bar.

    Refit shocks.

    I have used this method many times with no hassles, and even ride height.

    That's essentially the method I've used but using the ground as a measuring reference point. I'll give it a go next time.
    Graham

  8. #8
    Fellow Frogger! Roland's Avatar
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    Quote Originally Posted by alan moore
    Have rear of car on body stands on level ground.

    Remove shocks.

    Measure distance to ground from centre of hub.

    Remove torsion bar.

    Move rear arm up distance to be lowered, and set in place with stand.

    Refit torsion bar. You may have to move the arm up another couple of mm
    to fit the bar.

    Refit shocks.

    I have used this method many times with no hassles, and even ride height.
    Hi Alan,
    Now that makes a bit more sense. I couldn't understand the "wouldn't the car drop on its suspension when you remove the dummy shock absorber" situation as asked by Graham but your method takes care of this.
    Ta
    Roland

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