Quick warning about GKtech

Maestro666 · 05-30-2021, 07:34 PM

Quote:

Originally Posted by Brendan

Op forgot about this thread like my dad forgot to come home after buying cigarettes.

No, still pending. SPL gear arrived just recently after getting stuck in customs. FUCA's are now swapped out. Just need to do rear camber arms before the car goes into the shop for 1-2 months.

CeeCab705 · 05-31-2021, 06:03 PM

I have a GK Tech diff brace and diff bushing puller and was very pleased with both. Fitment and function of the diff brace is spot on and the bushing puller worked like a champ. Maybe stay away from their suspension components? I am running SPL for camber arms and those things are awesome. Voodoo13 stuff seems to be just as top notch as SPL just from photos, though.

Samster51 · 06-02-2021, 09:09 PM

Do you have pictures of them uninstalled and visibly shorter? In the picture now its hard to tell if it is actually shorter or if it was maybe it was installed wrong like others were suggesting?

Maestro666 · 06-02-2021, 09:25 PM

Quote:

Originally Posted by Samster51

Do you have pictures of them uninstalled and visibly shorter? In the picture now its hard to tell if it is actually shorter or if it was maybe it was installed wrong like others were suggesting?

I have them off the car now and will update with a full review this weekend. There is no doubt that one side is shorter. By a significant margin as well (over an inch).

Also will update with their FUCA's which have similar quality control issues.

Maestro666 · 06-06-2021, 02:58 AM

Finally got some time to take some pictures of the arms. I put the left and right rear camber arms next to each other. Some serious quality control issues there.

Then I took a measurement of the FUCA's. There is a 2.7mm difference. It doesn't sound like much but it means you WILL require a pry bar to install them. They also clunked like crazy, even over the smallest bump. Some nicks in the metal makes me think they are hitting the car body.

I replaced all of them with SPL billet gear and when opening the boxes I was immediately hit with a serious flaw with the SPL arms. They are too nice to install under your car. Inside your car? Yes. In your engine bay? Maybe. But not under the car where they will get all dirty. They are seriously a work of art and now I am going to have to get under there to clean them after every drive

cv129 · 06-06-2021, 02:48 PM

Nothing to argue on the rear camber arms. It is pretty damning. Mismatching arms being pkged together. Wow.

Rusty · 06-06-2021, 07:07 PM

That's a serous clusterfuck.

Tip. Before you install the SPL parts. Take everything apart and coat all the threads with ant seize. Years from now. You will be able to still be able to do adjustment.

THE BULL · 06-07-2021, 09:29 AM

Quote:

Originally Posted by Maestro666

Finally got some time to take some pictures of the arms. I put the left and right rear camber arms next to each other. Some serious quality control issues there.

Then I took a measurement of the FUCA's. There is a 2.7mm difference. It doesn't sound like much but it means you WILL require a pry bar to install them. They also clunked like crazy, even over the smallest bump. Some nicks in the metal makes me think they are hitting the car body.

That is insane, in the rear quality control was not in that day

On the front.... well I can see why they would try and fight you since it's not so much but still. These are suspension parts, the least you could do is make them even. Hope you get this figured out.

Hotrodz · 06-07-2021, 11:06 AM

That is so far off that it looks like they gave you one correct arm and then another for a different car.

Sent from my SM-G965U using Tapatalk

OptionZero · 06-07-2021, 12:02 PM

Quote:

Originally Posted by Maestro666

Finally got some time to take some pictures of the arms. I put the left and right rear camber arms next to each other. Some serious quality control issues there.

Then I took a measurement of the FUCA's. There is a 2.7mm difference. It doesn't sound like much but it means you WILL require a pry bar to install them. They also clunked like crazy, even over the smallest bump. Some nicks in the metal makes me think they are hitting the car body.

I replaced all of them with SPL billet gear and when opening the boxes I was immediately hit with a serious flaw with the SPL arms. They are too nice to install under your car. Inside your car? Yes. In your engine bay? Maybe. But not under the car where they will get all dirty. They are seriously a work of art and now I am going to have to get under there to clean them after every drive

You think the regular SPL stuff is too pretty?

Check out the "Nismo" branded version (same stuff made by SPL, just diff colors):

This GK horror story reminds me of my experience with Serial-Nine on my IS300. They made two versions of their FUCA, one for VIP cars on bags with extreme camber and a "sport" version for closer to stock suspension. I got the "sport" version but it maxed out at STOCK camber (near zero). Switched to the VIP version, and could only get MINIMUM -7 camber. It was baffling.

Only when I lined up VIP, sport, and stock side by side did we figure it out - a manufacturing defect had created a "sport" version with the wrong length. Nobody had bothered to check. They had an entire production run that was wrong, and lucky me, i am the one that caught it.

Brendan · 06-09-2021, 06:35 PM

Yikes ��

COBRAZ34 · 03-23-2023, 12:17 PM

This sucks you had to deal with this, I've purchased quite a few GKtech control arms including the FUCAs, rear camber arms, and rear traction arms and luckily I've never had a problem as severe as this but it's very concerning. I personally went with GK because obviously, I'm not in a position to afford SPL control arms and personally, I didn't see a significant difference in design between SPC and GK arms so I opted for the cheaper ones. Luckily so far the only real complaint is how difficult it can be to accurately adjust the GK FUCAs compared to that of SPC. I'll probably stick with GK until I can eventually afford a full set of SPL arms but until then here's to hoping I don't run into any serious issues!

06-06-2021, 02:48 PM	#21 (permalink)
cv129 A True Z Fanatic Join Date: Jul 2011 Location: Dallas, TX Posts: 3,191 Drives: 09 Nismo, 16 Nismo Rep Power: 159827	Nothing to argue on the rear camber arms. It is pretty damning. Mismatching arms being pkged together. Wow. DarkJak, Hotrodz, Optimiser and 2 others like this. __________________ Setrab \| RE-71 \| SPL \| JRZ \| Nismo \| ARK \| Whiteline \| RacingBrake \| CJM Oil Pan \| Ti shield

06-06-2021, 07:07 PM	#22 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 34,858 Drives: 2011 Nismo GM 6M Rep Power: 2684436	That's a serous clusterfuck. Tip. Before you install the SPL parts. Take everything apart and coat all the threads with ant seize. Years from now. You will be able to still be able to do adjustment. DarkJak, Hotrodz, Optimiser and 4 others like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

06-07-2021, 11:06 AM	#24 (permalink)
Hotrodz Premium Member Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684384	That is so far off that it looks like they gave you one correct arm and then another for a different car. Sent from my SM-G965U using Tapatalk __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

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05-31-2021, 06:03 PM	#17 (permalink)
CeeCab705 Base Member Join Date: Oct 2019 Location: Chicagoland Posts: 42 Drives: 2013 370Z M6 Rep Power: 5	I have a GK Tech diff brace and diff bushing puller and was very pleased with both. Fitment and function of the diff brace is spot on and the bushing puller worked like a champ. Maybe stay away from their suspension components? I am running SPL for camber arms and those things are awesome. Voodoo13 stuff seems to be just as top notch as SPL just from photos, though.

06-02-2021, 09:09 PM	#18 (permalink)
Samster51 Base Member Join Date: Oct 2016 Location: Clear Spring, MD Posts: 21 Drives: 09 Nissan 370z Rep Power: 8	Do you have pictures of them uninstalled and visibly shorter? In the picture now its hard to tell if it is actually shorter or if it was maybe it was installed wrong like others were suggesting?

06-09-2021, 06:35 PM	#26 (permalink)
Brendan Track Member Join Date: Apr 2013 Location: Colorado Posts: 626 Drives: Poor man's Porsche Rep Power: 541	Yikes ��

03-23-2023, 12:17 PM	#27 (permalink)
COBRAZ34 Base Member Join Date: Apr 2022 Location: Austin, TX Posts: 1 Drives: 2012 370Z QAB 6MT Rep Power: 3	This sucks you had to deal with this, I've purchased quite a few GKtech control arms including the FUCAs, rear camber arms, and rear traction arms and luckily I've never had a problem as severe as this but it's very concerning. I personally went with GK because obviously, I'm not in a position to afford SPL control arms and personally, I didn't see a significant difference in design between SPC and GK arms so I opted for the cheaper ones. Luckily so far the only real complaint is how difficult it can be to accurately adjust the GK FUCAs compared to that of SPC. I'll probably stick with GK until I can eventually afford a full set of SPL arms but until then here's to hoping I don't run into any serious issues!