Thread: Dropping the sub frame

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  1. #1 Dropping the sub frame 
    GTP Level Member apierce1289's Avatar
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    Okay so I'm doing my passenger side front brake line and I have sd headers which is probably why I'm having trouble with clearance with the new brake line I want to be able to drop the subframe a few inches so that way I can wiggle the new one up in there and do it correctly. What's the easiest way to drop the subframe on the car? I do not want to disconnect the exhaust if I don't have to all I need is a couple inches for clearance above the downpipe. When I stick my hand up in there I've got like half an inch for clearance which doesn't seem like very much.

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  2. #2 Re: Dropping the sub frame 
    Turbo is the way to go. BillBoost37's Avatar
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    Jack and support the car by it's drip edge (aka where the manual says to jack it from)
    Put a board across the subframe (I prefer a 4x4) in the back with jack under it.
    Remove the two 18mm bolts at the rear of the subframe.
    Lower it 2 inches.
    The only thing that can happen by doing this is the steering linkage coudl come undone. It's usually nto an issue with 2 inches or less. Heck..I've got nearly 3-4 before.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  3. #3 Re: Dropping the sub frame 
    GTP Level Member AjL227's Avatar
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    ^ What Bill said.
    Here is how I did it.
    I was installing cradle spacers/junkyard trans.
    Mind you my cradle was a lot lighter being unloaded and all.
    Prior to the spacer install, I let it hang off the front two bolts.

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    '04 CompG "WS6"
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  4. #4 Re: Dropping the sub frame 
    GXP Level Member 91parkave's Avatar
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    What these guys said....but if you need more room just unbolt the steering rack from the subframe via 18 mm bolts x2 use a bungee cord to hold the outer tie rods to the body and you can do what you need to do then
    06 GXP | 222/227 cam/cartuning turbo kit on 8psi/meth/e85 coilovers/ still on stock trans at 130k
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  5. #5 Re: Dropping the sub frame 
    Moderator dsmuts's Avatar
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    I just grab the impact and run one bolt out and the put it back in a few threads the take the other one out and do the same thing
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  6. #6 Re: Dropping the sub frame 
    Lifer h0wl0ngcanitbe's Avatar
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    How far (inches) can you drop the subframe without unbolting the steering rack?

    2001 4dr Black GTP Stock and staying that was... maybe

    1997 2dr Black GTP Open Cone, GXP Rims, Black Headlights, ZZP Headers, ZZP Cat Back, Bunch of suspension parts from ZZP, ZZP 10.5MM plug wires, Autolite 605s, Overkill Tune
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  7. #7 Re: Dropping the sub frame 
    Killa Bee Scottydoggs's Avatar
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    your safe in the 2 two 3 inch range, if you leave the bolts in, hold the frame up with a jack, then back the bolts to the end, then lower the jack to the bolts. but dont let it hang on the bolts, let the jack hold it up.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  8. #8 Re: Dropping the sub frame 
    Lifer h0wl0ngcanitbe's Avatar
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    Ive got it out about 2-3" is that about as far as it should go for safety?

    2001 4dr Black GTP Stock and staying that was... maybe

    1997 2dr Black GTP Open Cone, GXP Rims, Black Headlights, ZZP Headers, ZZP Cat Back, Bunch of suspension parts from ZZP, ZZP 10.5MM plug wires, Autolite 605s, Overkill Tune
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  9. #9 Re: Dropping the sub frame 
    Killa Bee Scottydoggs's Avatar
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    i wouldn't go much further.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  10. #10 Re: Dropping the sub frame 
    GT Level Member mkyota1's Avatar
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    Quote Originally Posted by h0wl0ngcanitbe View Post
    Ive got it out about 2-3" is that about as far as it should go for safety?
    Im not sure exactly how far I dropped it when installing my cam but I know it was more than 2-3". Just take it slow and only go far enough to get done what you need to do.
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  11. #11 Re: Dropping the sub frame 
    Turbo is the way to go. REDCRAPGP's Avatar
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    Quote Originally Posted by h0wl0ngcanitbe View Post
    Ive got it out about 2-3" is that about as far as it should go for safety?
    This is as far as I have went. When doing headers and cam I wouldn't go further then this personal.
    Squirrels are my engine. I need a Ford Regal
    04 Comp G.
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  12. #12 Re: Dropping the sub frame 
    Moderator dsmuts's Avatar
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    So did i drop this one to far? lol

    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  13. #13 Re: Dropping the sub frame 
    Turbo is the way to go. REDCRAPGP's Avatar
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    Sure did
    Squirrels are my engine. I need a Ford Regal
    04 Comp G.
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