DIY: 370Z Lowering Spring Install

CBRich · 04-05-2011, 08:09 AM

Quote:

Originally Posted by gaveup

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.

I don't find the job to be difficult but a compressed spring, no matter what tool I'm using to compress it, scares me. I'd much rather do a test pipe install. The right extensions, the right pipe, and a hammer make it actually quite simple.

bigdog1250 · 04-18-2011, 11:48 AM

Question, when putting the new spring on the strut, how do you know how far to tighten down the top hat? Does it stop at a certain point? I'm worried about having different amounts of compression in the springs.

tjlazer · 04-18-2011, 12:22 PM

I just eye balled it to the original. I took a pic and measured so I can see how far down it was. I think it can do down more but I wouldn't do it. Could damage it.

ClemsonWill · 04-27-2011, 03:39 PM

What are the torque specs for each of these bolts?

BG40thZ · 04-27-2011, 09:26 PM

Quote:

Originally Posted by ClemsonWill

What are the torque specs for each of these bolts?

What he said.... I am getting ready to install my swift springs this weekend and was wondering if anyone had any torque specs on all the various bolts, (strut mounts, lower control arm bolts, sway bar endlinks)??

ClemsonWill · 04-28-2011, 10:49 AM

After some searching I was able to put the information together.

Use this thread to read the diagrams

Torque Specs

And this link for the service manual if you don't want to download it.

Index of /FSM/370Z/Coupe

You just have to sift through the pages to find the specs you are looking for.

Hope this helps!

Z-it-right · 08-15-2012, 08:55 AM

Quote:

Originally Posted by ClemsonWill

After some searching I was able to put the information together.

Use this thread to read the diagrams

Torque Specs

And this link for the service manual if you don't want to download it.

Index of /FSM/370Z/Coupe

You just have to sift through the pages to find the specs you are looking for.

Hope this helps!

Print off the FSU.pdf and RSU.pdf on that link whn you do the install.

Red__Zed · 04-28-2011, 10:50 AM

nice write up

HoneyBadger · 05-01-2011, 07:35 PM

Thanks for the DIY. Very detailed. It was exactly what I needed to make my decision to take this to a shop. Rep'ed.

TongMan · 05-02-2011, 01:30 PM

confirming that there is no need for a spring compressor for the rear springs?

TongMan · 05-04-2011, 02:33 AM

Just completed my spring install. The rear requires no spring compressor. This is a great resource.

Alchemy · 09-01-2011, 01:46 PM

Quote:

Originally Posted by TongMan

Just completed my spring install. The rear requires no spring compressor. This is a great resource.

Yeah the rears are a breeze, about 10 min a side

iridefast · 09-18-2011, 05:10 PM

I would say that the shops assessment of 4.6 hours is pretty accurate. I "started" my install today and ran into several problems. Not even my air tools and impact wrenches could get the bolt off the front. The The spring compressor got had one with a bad thread. All in all it took me 4 1/2 hours to do one front spring. Exhausted, and bleeding. I stopped for now. I will do the other front tomorrow. I hope the rear springs are as easy as everyone says. By the way, not all springs are aligned the same, So even though you alighn the spring on the rubber top hat in the same position as stock, it wont necessarily fit in the car. I put the nismo spring in my 40th, and the top hat had to be rotated 90 degrees to fit. I had to take the assembly apart again, remove the rubber stopper ring on top, and rotate it. What a pain in the a$$. Lesson learned. All these issues aside, I thing the other front will be much easier. Oh yeh, no need to take off the tower brace :-)

iridefast · 09-18-2011, 05:15 PM

Holy misspellings. Sorry about that. Think you guys got the idea

Gurjinder13 · 02-18-2021, 11:13 AM

Quote:

Originally Posted by iridefast

I would say that the shops assessment of 4.6 hours is pretty accurate. I "started" my install today and ran into several problems. Not even my air tools and impact wrenches could get the bolt off the front. The The spring compressor got had one with a bad thread. All in all it took me 4 1/2 hours to do one front spring. Exhausted, and bleeding. I stopped for now. I will do the other front tomorrow. I hope the rear springs are as easy as everyone says. By the way, not all springs are aligned the same, So even though you alighn the spring on the rubber top hat in the same position as stock, it wont necessarily fit in the car. I put the nismo spring in my 40th, and the top hat had to be rotated 90 degrees to fit. I had to take the assembly apart again, remove the rubber stopper ring on top, and rotate it. What a pain in the a$$. Lesson learned. All these issues aside, I thing the other front will be much easier. Oh yeh, no need to take off the tower brace :-)

I am experiencing this exact problem

04-18-2011, 11:48 AM	#2 (permalink)
bigdog1250 Track Member Join Date: Nov 2008 Location: San Francisco Posts: 846 Drives: 991.2 GT3 Rep Power: 19	Question, when putting the new spring on the strut, how do you know how far to tighten down the top hat? Does it stop at a certain point? I'm worried about having different amounts of compression in the springs. __________________ 350z / 40th 370z / C6 Z06 / BMW M4 / V10 R8 / C7 Grand Spot / 997.1 GT3 / S2K / Camaro ZL1 / 718 GTS / 991.2 GT3

04-18-2011, 12:22 PM	#3 (permalink)
tjlazer A True Z Fanatic Join Date: Dec 2009 Location: Tacoma Age: 54 Posts: 2,497 Drives: Z34, R35 Rep Power: 21	I just eye balled it to the original. I took a pic and measured so I can see how far down it was. I think it can do down more but I wouldn't do it. Could damage it. __________________ 2009 370Z Monterey Blue,Nismo Conversion,RE-11's, K&N Typhoon intakes,Blue Kickplates,Homelink,FI 18" CBE,ERZ HFCs,Hotchkis sways, Swift Spec-R, EVO-R Highwing, UPREV

04-27-2011, 03:39 PM	#4 (permalink)
ClemsonWill A True Z Fanatic Join Date: Jul 2010 Location: Charleston, SC Posts: 12,045 Drives: a Civic VP! Rep Power: 446	What are the torque specs for each of these bolts? __________________ Slightly modded

04-28-2011, 10:49 AM	#6 (permalink)
ClemsonWill A True Z Fanatic Join Date: Jul 2010 Location: Charleston, SC Posts: 12,045 Drives: a Civic VP! Rep Power: 446	After some searching I was able to put the information together. Use this thread to read the diagrams Torque Specs And this link for the service manual if you don't want to download it. Index of /FSM/370Z/Coupe You just have to sift through the pages to find the specs you are looking for. Hope this helps! Zbrah likes this. __________________ Slightly modded

05-04-2011, 02:33 AM	#11 (permalink)
TongMan A True Z Fanatic Join Date: Feb 2010 Location: NorCal Posts: 1,297 Drives: 2013 Nissan GTR Rep Power: 717	Just completed my spring install. The rear requires no spring compressor. This is a great resource. zefaulter likes this.

04-28-2011, 10:50 AM	#8 (permalink)
Red__Zed A True Z Fanatic Join Date: Jul 2010 Location: window seat Posts: 28,940 Drives: Mostly on two wheels Rep Power: 121	nice write up

05-01-2011, 07:35 PM	#9 (permalink)
HoneyBadger Base Member Join Date: Apr 2011 Location: Knoxville, TN Posts: 67 Drives: 2010 PG 370z Rep Power: 16	Thanks for the DIY. Very detailed. It was exactly what I needed to make my decision to take this to a shop. Rep'ed.

05-02-2011, 01:30 PM	#10 (permalink)
TongMan A True Z Fanatic Join Date: Feb 2010 Location: NorCal Posts: 1,297 Drives: 2013 Nissan GTR Rep Power: 717	confirming that there is no need for a spring compressor for the rear springs?

09-18-2011, 05:10 PM	#13 (permalink)
iridefast Base Member Join Date: Sep 2010 Location: Alabama Posts: 49 Drives: 2012 GTR Rep Power: 16	I would say that the shops assessment of 4.6 hours is pretty accurate. I "started" my install today and ran into several problems. Not even my air tools and impact wrenches could get the bolt off the front. The The spring compressor got had one with a bad thread. All in all it took me 4 1/2 hours to do one front spring. Exhausted, and bleeding. I stopped for now. I will do the other front tomorrow. I hope the rear springs are as easy as everyone says. By the way, not all springs are aligned the same, So even though you alighn the spring on the rubber top hat in the same position as stock, it wont necessarily fit in the car. I put the nismo spring in my 40th, and the top hat had to be rotated 90 degrees to fit. I had to take the assembly apart again, remove the rubber stopper ring on top, and rotate it. What a pain in the a$$. Lesson learned. All these issues aside, I thing the other front will be much easier. Oh yeh, no need to take off the tower brace :-) stopher likes this.

09-18-2011, 05:15 PM	#14 (permalink)
iridefast Base Member Join Date: Sep 2010 Location: Alabama Posts: 49 Drives: 2012 GTR Rep Power: 16	Holy misspellings. Sorry about that. Think you guys got the idea

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
best spring to buy for lowering and ride qualituy	ddvette9	Brakes & Suspension	16	11-18-2010 09:33 AM
New Eibach Pro Kit Lowering Springs 370Z	al370z	Parts for sale (Private Classifieds)	13	06-23-2010 10:09 PM
370z lowering springs on sale now	ERZperformance	ERZperformance	0	06-25-2009 04:18 AM
Selling Eibach spring and OEM spring	spia	Parts for sale (Private Classifieds)	8	06-13-2009 08:18 AM