DIY: Cutting Rear Springmount aka "the springmount mod"

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Old 01-29-2007, 03:08 AM
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DIY: Cutting Rear Springmount aka "the springmount mod"

Since I keep getting PMs about this mod, and I needed to get a couple more MM of clearance in the rear. I decided to purchase a new set up rear springmounts and recut them, taking a little bit less off this time. Credit goes to Gsedan35, who was the first to do this, and Borahatch for giving me tips on how to go about cutting the mounts.
See Gsedan35's DIY on installing springs to remove the rear springmounts.
http://www.g-owners.com/article_read.asp?id=25
The pieces look something like this:
Side

Top


Tools:
Hacksaw
Tape
C-Clamp
Vise
WD-40 or similar lubricating spray
Rags

Start by taping a ring around the springmount of exactly how much you want to cut off. How much you cut will be how much more drop you will get so measure accordingly before cutting. I used Duct tape, but anything will work as long as it sticks to the rubber. I don't recommend blue painter's tape, because I used it the first time and it doesn't really stick to the rubber.


Next, get a rag or in my case some disposable gloves and insert into the hollowed out end of the springmount to provide a cushioned area for the C-clamp to seat to. Install the C-Clamp like in the picture and tighten until the springmount is difficult to rotate/move. Make sure to not overclamp or you can crack the plastic.




Insert the C-Clamp into your vise to provide a stable cutting rig


Get out your hacksaw and WD-40 or equiv


Begin by lubricating your hacksaw blade and springmount by spraying WD-40 onto the blade and rubber, and begin sawing along your tapeline. The outer ring of the springmount is rubber, but the inner ring is made of a plastic, so saw through the plastic. Loosen the clamp and rotate the mount 1 notch and retighten and continue sawing until you cut all the way around the mount, being careful to cut as straight and evenly as you can.


Once you finish cutting, you should end up with something that looks like this, they aren't exactly straight, but close enough, I've been running them for 6 months and no problems here


Here is a comparison of the height difference after cutting, ~1/2"


Reinstall in stock location


End up with a even drop! Dropped on 350z Tein H-Techs, but will work with any spring




Be prepared for camber issues in the rear, just like any drop in the rear over 0.4", I installed the SPC rear camber kit as well and will be getting an alignment soon.
 
The following 2 users liked this post by redlude97:
KnowScott (01-24-2012), nbarkins (11-02-2012)
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Old 01-29-2007, 11:01 AM
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now it won't get lost
 
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Old 01-29-2007, 12:52 PM
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thats a crazy drop... ehh id be too lazy to cut springs...and then i would need a chamber kit....ehh me and my broke ***...but thanks for the DIY
 
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Old 01-29-2007, 01:01 PM
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Nice!
 
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Old 01-29-2007, 02:27 PM
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Originally Posted by G35Pinoy
thats a crazy drop... ehh id be too lazy to cut springs...and then i would need a chamber kit....ehh me and my broke ***...but thanks for the DIY
You are NOT cutting the springs, but rather the spring mounts.
 
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Old 01-29-2007, 02:48 PM
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are you going to sell your precut spring mounts????
 
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Old 01-29-2007, 04:38 PM
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Originally Posted by jiggafree
are you going to sell your precut spring mounts????
Actually, I have my first ones for sale, they are the ones that achieved that drop in the pic. I'll post something in the marketplace when I get some pics up.
 
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Old 01-29-2007, 04:39 PM
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Originally Posted by G35Pinoy
thats a crazy drop... ehh id be too lazy to cut springs...and then i would need a chamber kit....ehh me and my broke ***...but thanks for the DIY
Its a camber kit, and did you read my post at all? I never once mention cutting the springs
 
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Old 01-29-2007, 04:40 PM
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Gotta love the "two in the pink and one in the stink" hand gesture
 
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Old 01-29-2007, 07:06 PM
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how much do you plan on selling them for? i might get them and sell them as a package deal when i sell my 350z h techs
 
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Old 01-29-2007, 07:12 PM
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I was thinking $50+shipping, basically the cost of a set of new ones, except they come premodified.
 
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Old 02-21-2007, 07:57 PM
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That looks easy enough to do. I'd like to drop the front just a tad for a bit more agressive look. Maybe 1/4 to 1/2 inch.

How long would it take to do the springmount mod (e.g. is this a one day/weekend job)? And could any Joe-Schmo do it? I've got some tools and would buy the rest as needed but I never worked on suspension before.
 
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Old 02-21-2007, 09:28 PM
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Originally Posted by GWord256
That looks easy enough to do. I'd like to drop the front just a tad for a bit more agressive look. Maybe 1/4 to 1/2 inch.

How long would it take to do the springmount mod (e.g. is this a one day/weekend job)? And could any Joe-Schmo do it? I've got some tools and would buy the rest as needed but I never worked on suspension before.
doesnt work on the front, this is only for the rear
 
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Old 02-22-2007, 11:11 AM
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How hard are the springmounts to get out in the first place?
 
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Old 02-22-2007, 01:10 PM
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Originally Posted by hottysmerf
How hard are the springmounts to get out in the first place?
If you know what you are doing, it takes longer to take the wheels off than to remove the springmounts. I can do it in ~10 mins per side including removing the wheels
 

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