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D2 Coilover Install

1779 Views 59 Replies 5 Participants Last post by  The_Mystical_Vegitibishi
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Well I'm installing the D2's on the 3g however ran into an issue with the back and not positive on how to solve. D2 is not open on the weekends and I notice a lot of you have installed them on your 3g. So whats up with the back coil-overs? Do I need to remove this center metal piece on the coil-over? or rather change something on my hub? The front went in no issue the back of course was harder to disassemble the stock that was stuck on there. Attaching pics but why doesn't the D2 just slide over the stock rear hub? And how do I properly install? Without having to wait for D2 to get back to me Monday. Thanks in advance!

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Check the old shock you removed. Sometimes the metal sleeve of the old shock lower bushing gets left behind when you remove the shock. Don't damage the male part of the wheel hub that the bushing sleeve is stuck to. I think those parts are out of production.
Thanks for being up early I am too cuz I wanna get this done!!

The old shock doesn’t have a metal bushing it was all just rubber, I still haven’t cleaned off all the rubber from the male part of the hub if you look at the pics I posted you can still see some residue from the old bushing. I just took the D2 coil to see if it lined up and doesn’t I had to cut the old shock to get it to even loosen let me throw pants on and I’ll get some pics. I also see this male part can be removed but fairly certain that if you do remove you no longer can use the bolt as it seems to screw into the male hub piece so if I remove is there threads for the bolt?
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Alright so, there is no metal left behind inside the shock and that piece on the back of the hub looks solid and holds the threads for the bolt to secure the shock in place.


Then the center piece of the new coil-over is the same size as the metal male piece on the hub. So it hits perfectly doesn’t not slide over the male hub part.

I had to cut the old shock to get it to remove it didn’t budge a millimeter after 4 hours of prying. Cut one side to loosen the tension and wiggled right off attaching pics so you can see I didn’t cut the male piece or very far into the stock bushing. The male hub piece is just slight scratched from the pickle fork I was using to push off the old shock.

Main question why doesn’t the new coilover slide over? I also noticed a post on here in like 2010 (post link here: D2 Racing Coilovers and Springs ) about D2 coilovers and that center price in the picture of that post is all the way to the left whereas mine is perfectly centered. Does the metal piece come out? Since it is for a galant as well perhaps the galants male piece is a bit smaller and does slide. Maybe the 3g you need to remove the center piece and it just sits on the bushing perhaps?

Looking for anyone who has installed D2 coilovers or has installed any and had this issue. Attaching pics the new coiliover picture you see is from the post i linked depicting the bushing and how its moved. Does it remove? OMG! I just uploaded pictures and now it wont upload any of them just keeps giving me the "not an image as expected" error even though its pics of a hub and shock ffs....(trying to upload pics now)

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@joeyoey0 Made the post to sell the D2 coilovers that i linked in the previous post. I had to edit each picture in order for the forum to accept them. Here's the pics for reference to the last post.

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It still looks to me like the old shock left its bushing sleeve behind on the hub, and that's why you can't get the new strut on. The sleeve is probably corroded in place, and the rubber tore when you removed the old shock, leaving the inner sleeve behind. If you remove that sleeve, the new coilover should slide on nicely.

I haven't personally installed D2 coilovers, so I'll defer if someone has installed tham and I'm wrong.
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Okay I see the inner metal piece you can see where it sits against that nut, it hasn't budged at all. Okay so....how can i remove that without damaging the Hub? I tried to get anything to budge for 1 hour on day one then sprayed it all with wd40 to try to loosen this up before I decided to cut on day 2. Rounded Vicegrip and twist with WD to loosen is what I'm gonna go try for a while now...anyone have any tricks for that I know these are notorious to cease.
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You'll get better results with a true penetrating fluid, rather than WD-40. I would try a pipe wrench if you have one. It's ok if you gouge up the bushing with vice grips or other tools.

Heat from a propane or mapp torch may also help break up the rust, but be really careful you don't wave the torch around and melt something important.

As a last resort, you could carefully cut the sleeve along its long axis, then pry the bushing open with a screwdriver or something. But it will be very difficult not to damage the piece underneath that the strut mounts to. A few scratches are probably fine; it's probably already pitted with corrosion. But you wouldn't want big gouges or cuts that compromise its structural integrity or make it easy for worse corrosion to set in.
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It bows outward near the nut as well. Is that where it links? Shouldn’t it be flush if you look at the picture you can see how there is sort of a flange before the nut and you can see the seam where the metal meets. Is that where it should separate if so why is it flanged outward?

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If you never completely removed the bolt, it will need to be removed eventually anyway.
And yes, you definitely want to avoid breaking it off, as has happened to others here. You need to Dremel off all that excess bushing material to completely expose the bolt. Then soak the bolt with PB blaster and let it seep in overnight, adding more PB blaster every few hours to the crevice between the bolt and entrance hole. Try not to mess up the threads on the bolt too much, although the important threads are not exposed really, being inside the knuckle still at this point. Use a breaker bar to remove the bolt, or an air wrench since it is a rather thick bolt that should withstand the force. If it won't budge, consider disassembling the knuckle and bringing it to a machine shop to get the stuck bolt out, probably from both sides of the car. If one is frozen, the other one likely is too. The shop will probably use heat, which most diy-ers don't have.
This is the type of repair that can easily turn into a nightmare and having to replace more parts than you expected. Prepare your head and wallet for that possibility. The worst case scenario will be having to replace your knuckles with used ones, as they are discontinued.
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Your saying completely remove the inner strut metal bushing that is stuck on the outer part before trying to remove the bolt yeah?

I may do the machine shop option…..but to be clear the bolt you are saying to remove is tha massive one I have the wrench on and do that AFTER I deemed off that metal material left from the strut?

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As mentioned the sleeve was left on the shock mount bolt, the sleeve needs to come off. A propane or MAP gas torch to heat it and then a pipe wrench to try to twist it will likely get it moving, but yes cutting a slit along it with a dremel cutoff disc and then opening the slit with a hammer and chisel will also work guaranteed. A few decades back my friend and I ran into the same issue with his car replacing the rear shocks. You shouldn't need to remove the whole stud but having it off the car can make it easier to work on if you have a vice mounted to a solid work bench, if not you're better off letting the car hold onto it for you or putting it back on the car to hammer and chisel at it.
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I don't think you need to unscrew the bolt, unless it makes it easier to get a tool on the sleeve.
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No, what you have the wrench on is more like an adapter plug, which screws into the knuckle on one side, and the actual mounting through bolt screws into that adapter. So when you are removing the bolt, you have to put one wrench on the adapter, and another wrench on the through bolt head. The mounting bolt has to completely unscrew from the adapter in order to remove the strut.
In one of your pictures, it appears the mounting bolt is still in place, perhaps you screwed it back in a bit after removing the strut? But in another pic, the bolt is removed.
So apparently you were able to remove one bolt but not the other, and thus needed to cut the strut. In any case, it looks like the bushing and it's metal sleeves on both sides is still attached, and that's what needs to be removed entirely. So when installing, the mounting bolt goes through the pre-installed bushing and sleeve of the new strut and attaches to the "adapter" which in turn is screwed into the knuckle.
Sooooo, on the side where there is no mounting bolt now installed, try tapping on the seized bushing/sleeve with a hammer as the metal sleeve is probably seized to the adapter. Not too hard though cuz you don't want that adapter to break off.
As a precaution, try pushing a pencil into the open end of that seized sleeve to check if the bolt broke off when removing it. The pencil should go in enough to reach the outer edge of the adapter. When you are sure there is no remaining bolt piece, use a Dremel to cut the sleeve off "at the outer edge of the adapter nut" assuming you weren't successful with the hammer.
The reason you don't want to cut through a seized bolt is so that you still have something to grip when you finally get the sleeve off from around it. This of course assumes the head broke off the bolt.
If on the other side of the car the bolt is seized inside the adapter, with the sleeve also seized around the bolt, then carefully Dremel off the sleeve WITHOUT cutting into the bolt or adapter nut.
As for the sleeve not being centered in the new struts, I am assuming that is by design to create some clearance. However, you should check the instructions to determine if the protruding side is suppose to flush against the adapter plug, or turned around instead.
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Okay yeah I thought for a sec you were talking about the bolt I had already removed. I was able to get that out but yeah needed to cut the strut sorry I had it depicted as still in. That’s why I asked again for clarification. I thought I might have confused you that way. So glad I did that lol. Yeah I have PB working on what’s left of the struts bushing.

The bolt to secure the strut on is intact and threads fine nothing left inside the knuckle. The only part still stuck is that inner metal part of the struts bushing. And I’m not trying to cut anything else it’s to close for me to be confident if I can’t chisel it off carefully or using heat, and the combination of them then it’ll be removed tomorrow and taken to a machine shop Monday most likely.

I think this sums up what I was looking for only time and careful effort will make it happen. I’ll keep you updated! Thanks for the advice!
If you got both bolts removed without snapping them, you are now safe to cut away the remaining bushing using a Dremel or grinder. There is nothing else there to ruin, as the needed threads are protected inside the knuckle. It's actually safer to cut away rather than chisel since you wouldn't be putting any pressure on the adapter, or banging it.
Removing the bolts is the critical part and you made it through that already. Buy a cheap Dremel or grinder from like Harbor Freight with cut-off wheels, and you'll still save money on machine shop labor charges.
Plus those tools will likely come in handy on future repairs, for example like rust removal.
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I have a “cut off tool” as harbor freight labels it 3” cut off wheel.
So just slice the left over metal piece obviously try not to hit the bolt.

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GOT IT THANKS!!!

I didn’thave to cut it all the way just enough to get it to spin once it could spinninknewnit was loose and here we are!

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I thought you said the bolts were removed???
If so, just hold the tool the other way and simply cut off the sleeve slightly away from the adapter nut, which again is NOT a bolt!!!
You are trying to remove the sleeve from the adapter nut, so you will cut straight down as if you were cutting a pipe. You can then file down any remaining material still stuck to the nut to get a smooth surface so that the new strut sleeve sits flush against the outer nut surface. Just go slowly with the cutoff wheel, or use a hack saw with a metal blade.
Just stay away from the nut as much as possible but still close enough so you only have to cut once. Or cut it about 1/16 inch away and grind down the rest.
A Dremel would be a better tool in this case because it's easier to do intricate cutting. A grinder/cut off tool requires more finesse due to the thicker blades.
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It’s on. And yes the bolts were removed just the center metal piece was stuck but it now not and replaced with D2’s thanks for the help!

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