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#1
Addco 639 rear swaybar install
SE Level Member
09-26-2020
Hey friends,
I have a 01 GTP that I purchased an Addco 639 rear sway bar for.
The OEM bar looks quite different from the Addco unit. - and when I went to install the new bar, it seemed to be not quite wide enough to fit?
Did I get the right part, or is there something I'm missing?
Thanks!
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#2
Re: Addco 639 rear swaybar install
GrandPrix Junkie
09-26-2020
1999 GP GT 18" Boss 353 Concave|SLP CAI|Borla Cat Back|Plog|HV3|HV TB|ER Rockers|Custom Retrofit Projectors|GMPP Lowering|GMPP Handling|MPD F1|Full Diode Dynamic LEDs
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Post Thanks / Like - 1 Thanks, 0 Likes, 0 Dislikes
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#3
Re: Addco 639 rear swaybar install
SE Level Member
09-27-2020
That was a nice thread. Thanks!
Doesn't seem like anyone had issues installing their bars.
I'll give it another shot later in the week and see if I just needed to make some adjustments.
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#4
Re: Addco 639 rear swaybar install
GrandPrix Junkie
09-27-2020
Seems like the only issue I read is the enlarging of the holes for the rear end links. Also maybe clunking against the exhaust. Interested to hear your thoughts on it once you get it installed.
1999 GP GT 18" Boss 353 Concave|SLP CAI|Borla Cat Back|Plog|HV3|HV TB|ER Rockers|Custom Retrofit Projectors|GMPP Lowering|GMPP Handling|MPD F1|Full Diode Dynamic LEDs
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#5
Re: Addco 639 rear swaybar install
SE Level Member
09-28-2020
Yeaaah gave it another shot. I could only wonder what happened when they made this one, but it definitely isn't wide enough. Picture is of the drive side, with the passenger side in the correct position.
Looks like Summit will let me return it so that's nice. Anyone happen to know the stiffest bar available after this one?
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#6
Re: Addco 639 rear swaybar install
GrandPrix Junkie
09-29-2020
That is pretty disappointing. I heard good things about the bar. Perhaps try another one.
You can reference this thread. You can go GMPP or ZZP. I believe GMPP is hallow and ZZP is solid.
Swaybar Sizes
1999 GP GT 18" Boss 353 Concave|SLP CAI|Borla Cat Back|Plog|HV3|HV TB|ER Rockers|Custom Retrofit Projectors|GMPP Lowering|GMPP Handling|MPD F1|Full Diode Dynamic LEDs
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Post Thanks / Like - 1 Thanks, 0 Likes, 0 Dislikes
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#7
Re: Addco 639 rear swaybar install
GT Level Member
10-01-2020
Looks like you just need to play with the adjustments more for centering, I think the collars go on first then the end links. Your picture comparing the two shows they are about the same width?
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#8
Re: Addco 639 rear swaybar install
SE Level Member
10-01-2020
Yea I messed with it for a while to see if I was doing something wrong had someone guiding it on the other end, but it just wasn't going to fit. At the two ends the Addco is 44 inches apart, and the OEM is 46. I think that might not have been an issue if the Addco bar was the same shape as the OEM.
Anyways I already sent it back, and have a ZZP rear bar on it's way. Looking forward to it!
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#9
Re: Addco 639 rear swaybar install
SE Level Member