Pushing in the rear bumper 308 QV | FerrariChat

Pushing in the rear bumper 308 QV

Discussion in '308/328' started by masonfamliy04, May 18, 2012.

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  1. masonfamliy04

    masonfamliy04 Karting

    Nov 29, 2004
    221
    Brooksville Florida
    Full Name:
    Bill, Amanda, Tyler
    On my 83qv, one of the rear bumper shocks will slide in and out by hand. The other one is still good. How can I mod it to be like the other one? Thanks Bill
     
  2. Crowndog

    Crowndog F1 Veteran

    Jul 16, 2011
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    If it is hydraulic like the fronts, some have drilled and drained them. Sounds like you lost fluid in the one? From a strike? Anyway don't know if the rears are the same but I do understand they are a little harder to work on.
     
  3. stevel48

    stevel48 Formula 3

    Jan 4, 2005
    1,998
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    replace with a new bumper shock or drill and tap the bad one and insert a screw to hold it in place.
     
  4. masonfamliy04

    masonfamliy04 Karting

    Nov 29, 2004
    221
    Brooksville Florida
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    Bill, Amanda, Tyler
    Thanks guys for the info. I want the pushed in look.
     
  5. stevel48

    stevel48 Formula 3

    Jan 4, 2005
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    #5 stevel48, May 18, 2012
    Last edited by a moderator: Sep 7, 2017
  6. Crowndog

    Crowndog F1 Veteran

    Jul 16, 2011
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    As I understand the bolts are not threaded the whole length did you shorten and thread them or use a sleeve to be able to tighten it back up?
     
  7. stevel48

    stevel48 Formula 3

    Jan 4, 2005
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    #7 stevel48, May 18, 2012
    Last edited by a moderator: Sep 7, 2017
  8. Crowndog

    Crowndog F1 Veteran

    Jul 16, 2011
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    #8 Crowndog, May 18, 2012
    Last edited: May 18, 2012
    You wouldn't happen to remember the length of said sleeve? Bumpers and front stabalizer bushings are next on the list. I picked up the shorter front mounts.
     
  9. stevel48

    stevel48 Formula 3

    Jan 4, 2005
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    around 1.5 in or so
     
  10. Crowndog

    Crowndog F1 Veteran

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  11. masonfamliy04

    masonfamliy04 Karting

    Nov 29, 2004
    221
    Brooksville Florida
    Full Name:
    Bill, Amanda, Tyler
    I'm using a light weight fiber glass bumper. I want the bumper pushed in as much as possible. Where do I drill to get the oil out?
     
  12. Crowndog

    Crowndog F1 Veteran

    Jul 16, 2011
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    Don't go too far. Measure if you will even need to do that once the spacers are removed for the plastic bumper. You may find that you just need to stabalize the one bumper shock. There are trim pieces above that might not look nice sticking out over the bumper. Just sayin'.
     
  13. masonfamliy04

    masonfamliy04 Karting

    Nov 29, 2004
    221
    Brooksville Florida
    Full Name:
    Bill, Amanda, Tyler
    No trim peace for me!!
     
  14. Crowndog

    Crowndog F1 Veteran

    Jul 16, 2011
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    Well, any place you have access to drill then tap and place the hold screw. It does need to be in the larger diameter pipe however.
     
  15. shawxhurst

    shawxhurst Formula Junior

    Nov 6, 2006
    672
    San Diego
    Full Name:
    Steve Hawxhurst
    I'm just finishing the rear bumper mod which pushes the bumper in 1.5" using spacers. Take a good look at your diaper if you do this - the diaper has some insulated pads that go over the top of the tail pipes. For some reason these are prone to rust. I had to make up a new piece for one side and rivet it to the upper rear flange edge of the diaper.

    I'd like to do the fronts also using the replacement struts from MACarbon. Hosw hard are these to install? It looks like there's some sheetmeta stuff you would need to remove to get at the inboard end of the shock for removal/replacement. I've read lots of threads about drilling the shocks, letting out the fluid and pressure and threading holes to pin it in place. Sounds like a major cobble job and with my luck the shocks would be frozen in place due to not running into things too often. A recent thread mentioned having to run the car into the side of his garage to get the bumper to move even after draining the fluid.
    So any MA Carbon guys out there how hard are they to install? Your thoughts and experiences will be appreciated!l
     
  16. miketuason

    miketuason F1 World Champ
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    Feb 24, 2006
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    I know pushed in rear bumper looks way better than not pushed in, that's why I'm considering doing it too but, doesn't that lessen the protection against minor fender bender? Reason I ask, because I got tapped once on my rear bumper and luckily nothing happened so, I'm just wondering what if my rear bumper were pushed in.
     
  17. masonfamliy04

    masonfamliy04 Karting

    Nov 29, 2004
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    Bill, Amanda, Tyler
    #17 masonfamliy04, May 18, 2012
    Last edited by a moderator: Sep 7, 2017
  18. Crowndog

    Crowndog F1 Veteran

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    #18 Crowndog, May 18, 2012
    Last edited: May 18, 2012
    The headlight grills removed and it's easy access. I think you then raise the lights. It's in the easy instructions that come with them. Toughest part is supporting the weight of the US bumper, they recommend a helper.
     
  19. Crowndog

    Crowndog F1 Veteran

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    Wow, which end. Any closeup pictures? Does it leave room for the nuts to secure the bumper. What prevents it from sliding out again?
     
  20. stevel48

    stevel48 Formula 3

    Jan 4, 2005
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    I have em. Unbolt the old tubes and the new one go in. nothing else has to be done. save the old tubes for future resto if the value of the cars go up.
     
  21. shawxhurst

    shawxhurst Formula Junior

    Nov 6, 2006
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    San Diego
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    Steve Hawxhurst
    I just went out and looked. With the lights flipped up there's tons of access. Thanks Crowndog!
     
  22. stevel48

    stevel48 Formula 3

    Jan 4, 2005
    1,998
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    it does. 1.5 fewer inches of protection but it's a risk you have to be willing to take. look at all the guys that own euro cars...they have zero room for a tap.
     
  23. Crowndog

    Crowndog F1 Veteran

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    You are most welcome. I enjoy giving back.
     
  24. Crowndog

    Crowndog F1 Veteran

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    Sorry I was almost right. I just fiished the same job. Access is related to the raised headlights but then you remove the headlight shroud. This gives more direct access to the rear bolt on the shock tube that is being replaced from the space in front of the headlight. That bolt by the way was a PITA. I ended up using a channel lock on the nut on the bottom and a socket on the head on top. Piece of cake after that since only one of my arms fit in there at a time. Also a good time to clean up the front grill while it is off.
     
  25. JazzyJay

    JazzyJay Formula Junior

    Oct 26, 2005
    367
    Connecticut
    So....can anyone give a step-by-step guide for the front and rear bumpers? I have the MAcarbon front short struts. Sounds like the headlights up are enough to get the job done with some bloody knuckles.

    And can the rear US bumpers be shortened simply by removing the spacers (and installing long bushings)?

    Thanks.
     

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