Thread: Cutting the bumper on your struts

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  1. #1 Cutting the bumper on your struts 
    Donating Users GeddyLee's Avatar
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    I was wondering who has cut/shaved their bumper at the top of their struts when you lower your GP? I have heard of a few who do it, but not many, I was just wondering how effective or helpful this practice truly is.

    And the second question would be, just how far do you trim back the bumper before it actually more harmful than helpful.

    I look forward to hearing about your thoughts on this.

    Thanks!

    James Shafer
    2003 GP GTX SLP P/N 50066 (SOLD )
    2005 Nissan Pathfinder SE 4x4 (The baby hauler )
    St. Louis MO
    1.9 Modified Rockers, TOGs, 180 Tstat, PRJ 10.4 Wires, P/P Gen 3, SLP Ram Air Hood/Wizaired CAI, Gen 1 Spoiler, 3.4 ZZP Pulley, Desert Fox Tranny Cooler, Thrasher Shift Kit, 18" TSW Mondellos w/ AGX Struts, SSC Gen II Springs
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  2. #2 Re: Cutting the bumper on your struts 
    DUI BABY Bio248's Avatar
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    bumper? what? where specifically are you talking about?

    if youre talking about the FENDERS being rolled/trimmed, i can see that..
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  3. #3 Re: Cutting the bumper on your struts 
    SE Level Member davidl25's Avatar
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    Hes talking about the bumper that is on the strut, in the middle of the coil spring. Im wondering thw same thing also.
    99 GP (SE) GT Clone, KYB AGX struts + SSC springs, GMPP sway bars, GMPP trailing arms, OTTO strut tower brace,Big 3 mod, Stage 2 voltage booster, alt rewire, 180 t stat, HID conversion, D/S rotos and ceramic pads,cold air intake, and an insane car audio setup 150+ db.
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  4. #4 Re: Cutting the bumper on your struts 
     

  5. #5 Re: Cutting the bumper on your struts 
    Donating Users GeddyLee's Avatar
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    Thanks for clearing that up for me David. I was not quite sure if I was explaining right. I have heard cutting like 1/4 of inch upto 1/2 an inch helps with the overall smoothness of the strut traveling the length of the piston before it make contact with the bumper. Cause obviously the piston is now has a shorter distance to travel from top to bottom due to the shorter springs.

    I just wanted to see if anyone might have tried it before I give a shot.

    James Shafer
    2003 GP GTX SLP P/N 50066 (SOLD )
    2005 Nissan Pathfinder SE 4x4 (The baby hauler )
    St. Louis MO
    1.9 Modified Rockers, TOGs, 180 Tstat, PRJ 10.4 Wires, P/P Gen 3, SLP Ram Air Hood/Wizaired CAI, Gen 1 Spoiler, 3.4 ZZP Pulley, Desert Fox Tranny Cooler, Thrasher Shift Kit, 18" TSW Mondellos w/ AGX Struts, SSC Gen II Springs
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  6. #6 Re: Cutting the bumper on your struts 
    DUI BABY Bio248's Avatar
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    i wonder if that is why my car hits so hard over big bumps? it feels like my dash is about to fall off sometimes.
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  7. #7 Re: Cutting the bumper on your struts 
    SE Level Member davidl25's Avatar
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    Thats how mine is also. Thats why i was wondering the same.
    99 GP (SE) GT Clone, KYB AGX struts + SSC springs, GMPP sway bars, GMPP trailing arms, OTTO strut tower brace,Big 3 mod, Stage 2 voltage booster, alt rewire, 180 t stat, HID conversion, D/S rotos and ceramic pads,cold air intake, and an insane car audio setup 150+ db.
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  8. #8 Re: Cutting the bumper on your struts 
    GT Level Member TurboKent's Avatar
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    The yellow bumper is about 3 inches or so if i remember right. After i lowered mine i had to cut them because it was pressed up against the stop causing one terribly hard ride. I cut mine back to there was about 3/4 of an inch left on them. Been driving like that for a about 4 years now.
    2003 Grand Prix turbo intercooled
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  9. #9 Re: Cutting the bumper on your struts 
    Donating Users GeddyLee's Avatar
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    Excellent Kent!! Thanks for the info! I just need to get my new KYB front strut mounts when I drop them and I will be good to go!

    James Shafer
    2003 GP GTX SLP P/N 50066 (SOLD )
    2005 Nissan Pathfinder SE 4x4 (The baby hauler )
    St. Louis MO
    1.9 Modified Rockers, TOGs, 180 Tstat, PRJ 10.4 Wires, P/P Gen 3, SLP Ram Air Hood/Wizaired CAI, Gen 1 Spoiler, 3.4 ZZP Pulley, Desert Fox Tranny Cooler, Thrasher Shift Kit, 18" TSW Mondellos w/ AGX Struts, SSC Gen II Springs
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  10. #10 Re: Cutting the bumper on your struts 
    i pay to play badbrad's Avatar
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    mybe this is why mine rides like @*^% over bumps. i put new sensatrac struts, u/ lower spring isolators, new bearing plate asssemblies and coilsprings! will try this tonite.
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  11. #11 Re: Cutting the bumper on your struts 
    Donating Users GeddyLee's Avatar
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    I just picked up my new Monroe Strutmate front struts from Advanced Auto. $70 bucks total for both including Advanced's lifetime warranty. Hopefully I will get the time this weekend to get mine done as well

    James Shafer
    2003 GP GTX SLP P/N 50066 (SOLD )
    2005 Nissan Pathfinder SE 4x4 (The baby hauler )
    St. Louis MO
    1.9 Modified Rockers, TOGs, 180 Tstat, PRJ 10.4 Wires, P/P Gen 3, SLP Ram Air Hood/Wizaired CAI, Gen 1 Spoiler, 3.4 ZZP Pulley, Desert Fox Tranny Cooler, Thrasher Shift Kit, 18" TSW Mondellos w/ AGX Struts, SSC Gen II Springs
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  12. #12 Re: Cutting the bumper on your struts 
    GTP Level Member dstout's Avatar
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    Quote Originally Posted by TurboKent View Post
    The yellow bumper is about 3 inches or so if i remember right. After i lowered mine i had to cut them because it was pressed up against the stop causing one terribly hard ride. I cut mine back to there was about 3/4 of an inch left on them. Been driving like that for a about 4 years now.
    So it does work then. I guess a lot of us have been wondering the same thing.
    Thanks
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  13. #13 Re: Cutting the bumper on your struts 
    GT Level Member pski920's Avatar
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    alot of people do it with a hacksaw on older cars. i did it on my 69 camaro. i lowered it 2 inches in the front, so i didn't want it to hit all the time, i cut 3/8" or so off and reinstalled it. worked good, so it should work for GP's too. just allows the suspension to travel a little more before "bottoming" out.
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  14. #14 Re: Cutting the bumper on your struts 
    GT Level Member TurboKent's Avatar
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    alot of people do it with a hacksaw on older cars
    I did it with a razor blade while it was on the car. A little tricky but it can be done, just jack the car up until the strut is fully extended.
    2003 Grand Prix turbo intercooled
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  15. #15 Re: Cutting the bumper on your struts 
    GT Level Member pski920's Avatar
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    Quote Originally Posted by TurboKent View Post
    I did it with a razor blade while it was on the car. A little tricky but it can be done, just jack the car up until the strut is fully extended.
    yea, great idea! you don't even have to take them off if you're careful. i did them while i was installing them, while rebuilding the front end of my camaro. i used a hack saw because they were polyurethane and a littel hard to cut with a razor blade.
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  16. #16 Re: Cutting the bumper on your struts 
    Donating Users GeddyLee's Avatar
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    Ok.............

    I am replacing my front strut town brackets this weekend, I got a set of Monroe Strutmates from Advanced Auto. Not to bad, they ran $70 for both.

    Anyways my question is now.............which side of the bumper do you cut? Top, bottom, or what? Here are some photos of the bumper, so please let me know.





    Many thanks in advance!

    James Shafer
    2003 GP GTX SLP P/N 50066 (SOLD )
    2005 Nissan Pathfinder SE 4x4 (The baby hauler )
    St. Louis MO
    1.9 Modified Rockers, TOGs, 180 Tstat, PRJ 10.4 Wires, P/P Gen 3, SLP Ram Air Hood/Wizaired CAI, Gen 1 Spoiler, 3.4 ZZP Pulley, Desert Fox Tranny Cooler, Thrasher Shift Kit, 18" TSW Mondellos w/ AGX Struts, SSC Gen II Springs
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  17. #17 Re: Cutting the bumper on your struts 
    GT Level Member TurboKent's Avatar
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    it's the flat side that goes down against the strut(top pic) the tapered part is what hits the stop(pic 2). I cut mine where it narrows at the thinnest point before it bulges out for the second and top rung.
    2003 Grand Prix turbo intercooled
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  18. #18 Re: Cutting the bumper on your struts 
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    My eibach springs came with a piece of paper showing exactly what to do. Eibach doesnt have that info online but I did find this page (scroll to number 5):

    Stealth 316 - Ground Control Spring Installation
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  19. #19 Re: Cutting the bumper on your struts 
    Donating Users GeddyLee's Avatar
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    You rock Fug!! Thanks!!!

    James Shafer
    2003 GP GTX SLP P/N 50066 (SOLD )
    2005 Nissan Pathfinder SE 4x4 (The baby hauler )
    St. Louis MO
    1.9 Modified Rockers, TOGs, 180 Tstat, PRJ 10.4 Wires, P/P Gen 3, SLP Ram Air Hood/Wizaired CAI, Gen 1 Spoiler, 3.4 ZZP Pulley, Desert Fox Tranny Cooler, Thrasher Shift Kit, 18" TSW Mondellos w/ AGX Struts, SSC Gen II Springs
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  20. #20 Re: Cutting the bumper on your struts 
    Donating Users GeddyLee's Avatar
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    Quote Originally Posted by TurboKent View Post
    it's the flat side that goes down against the strut(top pic) the tapered part is what hits the stop(pic 2). I cut mine where it narrows at the thinnest point before it bulges out for the second and top rung.
    Thanks for chiming in as well Kent. The diagram fugly has says about 1 1/4" make the cut, which puts it at almost the exact spot you mentioned!

    Many thanks to you too sir!

    James Shafer
    2003 GP GTX SLP P/N 50066 (SOLD )
    2005 Nissan Pathfinder SE 4x4 (The baby hauler )
    St. Louis MO
    1.9 Modified Rockers, TOGs, 180 Tstat, PRJ 10.4 Wires, P/P Gen 3, SLP Ram Air Hood/Wizaired CAI, Gen 1 Spoiler, 3.4 ZZP Pulley, Desert Fox Tranny Cooler, Thrasher Shift Kit, 18" TSW Mondellos w/ AGX Struts, SSC Gen II Springs
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