DIY: 370Z Lowering Spring Install

CBRich · 12-10-2010, 05:45 PM

Let me just add that if you don't have an impact gun then the lower strut bolt will be a serious pain. I was able to break the torque on it by placing a 22mm wrench on the side closest to the front of the car. Get it on there good and make sure it stays aligned during the whole process. On the back side go at it with a 19mm socket, 12" extension, 1/2" ratchet, and a nice size pipe. While yanking on the bar make sure the 22mm stays wedged in and give it a tug. Good luck.

Jquad · 12-11-2010, 12:00 AM

Gud job bro

tjlazer · 12-14-2010, 09:53 PM

Quote:

Originally Posted by CBRich

Let me just add that if you don't have an impact gun then the lower strut bolt will be a serious pain. I was able to break the torque on it by placing a 22mm wrench on the side closest to the front of the car. Get it on there good and make sure it stays aligned during the whole process. On the back side go at it with a 19mm socket, 12" extension, 1/2" ratchet, and a nice size pipe. While yanking on the bar make sure the 22mm stays wedged in and give it a tug. Good luck.

Yes indeed, a nice long breaker bar and a 6 point socket set is all I needed to get those bad boys off. If you can imagine I originally attempted this with a 12 point socket! Trashed the nuts. Had to order new ones from Nissan.

lauj · 02-22-2014, 04:44 PM

How do you pull out the spring after lower perch down?
Do you need to use the spring compressor?

critical · 02-22-2014, 04:53 PM

Quote:

Originally Posted by lauj

How do you pull out the spring after lower perch down?
Do you need to use the spring compressor?

just pull the perch down and yank the spring out. don't need to compress anything

lauj · 02-22-2014, 04:58 PM

Quote:

Originally Posted by critical

just pull the perch down and yank the spring out. don't need to compress anything

Got it. I was just scare to break something. :-)

Sent from my C6506 using Tapatalk

lauj · 02-23-2014, 11:07 AM

How much torque do you use to loose the 14mm nut holding the strut top on? I have a impact wrench 250lb of torque and is not loosening it ? The springs is compressed also.

critical · 02-23-2014, 04:58 PM

Quote:

Originally Posted by lauj

How much torque do you use to loose the 14mm nut holding the strut top on? I have a impact wrench 250lb of torque and is not loosening it ? The springs is compressed also.

you have to compress the spring more and use a wrench to hold the piston, not just spin it like crazy.

zefaulter · 05-23-2014, 11:47 PM

Quote:

Originally Posted by lauj

How much torque do you use to loose the 14mm nut holding the strut top on? I have a impact wrench 250lb of torque and is not loosening it ? The springs is compressed also.

It was really easy to remove mine. my battery powered impact was able to get those out easily. try compressing more?

98intrigue · 12-14-2010, 09:33 PM

Just wanted to say thanks for the DIY! I used your DIY to change my front shocks.

wheee! · 03-11-2011, 02:02 PM

subscribed...

TypeOne · 03-16-2011, 11:04 AM

Updated the difficulty slightly for jobs that use springs other than TEIN. Since some springs are wound differently, it makes it harder to fit the compressor on them. You have to fight it and it gets frustrating.

Be careful!

wheee! · 03-29-2011, 05:22 PM

Got my Swifts installed today thanks to this DIY! Just one note: the nut sizes in step 6

Quote:

Step 6.
Remove the 17mm lower control arm bolt & 14mm sway bar link

...are actually 19mm on the lower control arm and 17mm on the sway bar.

Other than that, Great DIY!

TypeOne · 03-31-2011, 10:40 AM

Thanks!

gaveup · 04-04-2011, 06:44 PM

6/10 is a little high.

Springs are really easy, and the fact the rears are how the are makes it even easier.

Id rather install 10 sets of springs than touch a test pipe again.

12-10-2010, 05:45 PM	#1 (permalink)
CBRich A True Z Fanatic Join Date: Apr 2009 Location: SC Posts: 2,464 Drives: 370Z Rep Power: 545	Let me just add that if you don't have an impact gun then the lower strut bolt will be a serious pain. I was able to break the torque on it by placing a 22mm wrench on the side closest to the front of the car. Get it on there good and make sure it stays aligned during the whole process. On the back side go at it with a 19mm socket, 12" extension, 1/2" ratchet, and a nice size pipe. While yanking on the bar make sure the 22mm stays wedged in and give it a tug. Good luck. zefaulter, Zbrah, AstatenateZ and 1 others like this. Last edited by CBRich; 12-11-2010 at 12:43 AM.

12-11-2010, 12:00 AM	#2 (permalink)
Jquad A True Z Fanatic Join Date: Apr 2010 Location: Ny Posts: 1,391 Drives: 2k10Z34Pw Rep Power: 18	Gud job bro __________________ \|\|F.I.CBE 18" CF muffler\|\|Injen CAI\|\|CF Bpillars\|\|CF Stage 1 Side mirror\|\|CS Amuse Kit\|\|JquadHeadlights\|\|3mTB35%Tint\|\|Work Gnosis GS2\|\| Wish List==>\|\|GTM TT\|\|Coils\|\|Camber Arms\|\|Tires\|\|Wing\|\|Hotchkis Sways\|\|

12-14-2010, 09:33 PM	#10 (permalink)
98intrigue A True Z Fanatic Join Date: Jul 2010 Location: Clearwater, FL Age: 39 Posts: 4,855 Drives: 2014 Viper Rep Power: 430	Just wanted to say thanks for the DIY! I used your DIY to change my front shocks. __________________ Ryan - 2014 Stryker Green Viper Gone - a few Vipers and a couple turbo VQs

03-11-2011, 02:02 PM	#11 (permalink)
wheee! A True Z Fanatic Join Date: Sep 2009 Location: Mod Capital of Canada Age: 58 Posts: 7,354 Drives: cars. lots of cars. Rep Power: 40182	subscribed... __________________ H&R / Stillen / Berk / HKS / Swift / Michelin / UpRev / SPC / Amuse Rep / Seibon / Fringe XVO / TWM / more... My Journal

04-04-2011, 06:44 PM	#15 (permalink)
gaveup Enthusiast Member Join Date: Aug 2010 Location: Tamarac FL Posts: 324 Drives: 10 Nissan 370Z MB M6 Rep Power: 181	6/10 is a little high. Springs are really easy, and the fact the rears are how the are makes it even easier. Id rather install 10 sets of springs than touch a test pipe again. logenl7, 1LIFE, zefaulter and 1 others like this. __________________ 2010 Magnetic Black Metallic 370Z 6M stillen gen 3 CAI - topspeed test pipes - invidia gemini CBE - UpRev tune 301whp (HP Logic Mustang Dyno)

02-23-2014, 11:07 AM	#7 (permalink)
lauj Base Member Join Date: Sep 2011 Location: Arizona Posts: 174 Drives: 10 Nissan 370z M6 Rep Power: 14	How much torque do you use to loose the 14mm nut holding the strut top on? I have a impact wrench 250lb of torque and is not loosening it ? The springs is compressed also.

03-16-2011, 11:04 AM	#12 (permalink)
TypeOne A True Z Fanatic Join Date: Jul 2010 Location: Baton Rouge, LA Posts: 2,682 Drives: BSM 370 Rep Power: 1851	Updated the difficulty slightly for jobs that use springs other than TEIN. Since some springs are wound differently, it makes it harder to fit the compressor on them. You have to fight it and it gets frustrating. Be careful!

03-31-2011, 10:40 AM	#14 (permalink)
TypeOne A True Z Fanatic Join Date: Jul 2010 Location: Baton Rouge, LA Posts: 2,682 Drives: BSM 370 Rep Power: 1851	Thanks!

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