Either is really fine, but you may increase the ride height a bit by filling the gaps with the suspension at full extension. I would definitely recommend filling the gaps with the suspension at ride height, but it's not required.Here is another pic with the finished product. I actually used smoothing tools to get this finish -- that's how awful this stuff is to work with.
Good luck and let me know if you guys have any questions!
Hey can you help me understand how this impacts the original DIY? Are you suggesting that when the car is in the air on jackstands we should lift the front suspension up until it is at ride height, and then fill in? Or we should lift the car up and let the wheels hang down when we fill in?
Either is really fine, but you may increase the ride height a bit by filling the gaps with the suspension at full extension. I would definitely recommend filling the gaps with the suspension at ride height, but it's not required.
If you can get under the car without jacking, then have at it!I am planning to do this mod this weekend. Two questions:
1) is there any reason the car has to be lifted to do this? several posts have said it is best to put the urethane into the bushing while using a jackstand to hold it at a neutral position. so why not just apply urethane while the car is sitting on the ground/ramps?
2) do you apply the urethane to these holes on the side of the bushing toward the front of the car, the back of the car, or doesn't it matter because the holes go all the way through??
If you can get under the car without jacking, then have at it!
But seriously, you need to jack the car to reach the bushings.
And fill all the holes.
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If you can get to the bushings without jacking the car, then there's no reason to put it on a lift just to clean them. Just get the crud off and make a mess with the poly.Ha, well I looked at it yesterday and I could just barely reach the bushing without jacking. Thinking if I drive up onto some stacked 2x4s to get the car a few inches higher in the air, that I could easily do this. I am going to lift the car on a friends lift for some other work and will clean the bushings while it is in the air. But I can't leave it sit on the lift for the 12-14 hrs.
Thinking it's best to clean and prep everything on the lift, drive home, park on some 2x4's and then apply the urethane. Then in the morning, drive off the wood with an improved ride! Will report back how it goes.
To further clarify, when you say all the holes, you mean fill all 4 holes on both the front and back side of each bushing, so 16 holes total?
That sounds awesome! The rubber should hold up to stress better than the poly over time too. Well done.I did my own version of this so it could be undone if I wanted. I bought two feet of fuel hose and crammed it into most of the little holes (quite difficult in some parts) while the car was up on ramps. I cut the hose into 1 inch pieces, lubricated the pieces with isopropanol (rubbing alcohol), then crammed them in and waited for the isopropanol to evaporate (was doing an oil change so there was ample time). I don't know if the pieces will stay in permanently, but I do like the resulting effect on handling. I might make this permanent by injecting polyurethane, IF the hose pieces actually fall out at some point.
Btw, the hose was 5$ at advance auto, so if you guys want to demo the changes in handling before actually committing to this permanent solution, try it this way. I used (I think) half inch fuel line, maybe 3/4 inch, I honestly dont remember! Whatever hose you get should be larger than the holes you are trying to fill though, and you might have to use some elbow grease to cram it in even with lubrication, if you know what I mean.
And you will make a mess. Oh, dear Lord...
Not sure if loaded or uploaded makes any difference at all. I did mine unloaded, and I'm perfectly happy with it. Any difference would be very subtle.
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I still haven't got around doing this mod but I like what you did.
How much clearance did you get with the stack? I am asking because I am lowered and I need to create some clearance to get under the car.
Also did you put the stack only in the front or in the rear as well?
Here's what it actually looks like, I didn't use any tools just squirted what I could to fill the gaps then squirted some on my finger and spread a layer across the whole thing (it's not super clean or precise but it's not particularly visible so why does it matter). My thinking was that I am not altering the stiffness of the actual suspension just the bushing.
Even happier with the mod after a few days. I find myself looking for excuses to throw it hard into corners!
I still plan to add strut bar, but I no longer think I need a stiffer sway bar in the front (though maybe in the back).