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DIY: 370Z Lowering Spring Install

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

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Old 12-10-2010, 05:45 PM   #1 (permalink)
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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.








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Old 12-11-2010, 12:00 AM   #2 (permalink)
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Gud job bro
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Old 12-14-2010, 09:53 PM   #3 (permalink)
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Quote:
Originally Posted by CBRich View Post
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.
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Old 02-22-2014, 04:44 PM   #4 (permalink)
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How do you pull out the spring after lower perch down?
Do you need to use the spring compressor?
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Old 02-22-2014, 04:53 PM   #5 (permalink)
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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
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Old 02-22-2014, 04:58 PM   #6 (permalink)
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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. :-)

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Old 02-23-2014, 11:07 AM   #7 (permalink)
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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.
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Old 02-23-2014, 04:58 PM   #8 (permalink)
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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.
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Old 05-23-2014, 11:47 PM   #9 (permalink)
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Originally Posted by lauj View Post
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?
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Old 12-14-2010, 09:33 PM   #10 (permalink)
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Just wanted to say thanks for the DIY! I used your DIY to change my front shocks.
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Old 03-11-2011, 02:02 PM   #11 (permalink)
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Old 03-16-2011, 11:04 AM   #12 (permalink)
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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!
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Old 03-29-2011, 05:22 PM   #13 (permalink)
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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!
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Old 03-31-2011, 10:40 AM   #14 (permalink)
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Thanks!
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Old 04-04-2011, 06:44 PM   #15 (permalink)
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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.
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