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3000GT front shock build

6205 Views 79 Replies 12 Participants Last post by  jda95bird
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I’ve started working on getting my front shocks together for my suspension rebuild. I went with these $14 API shocks from rockauto. They are listed as wholesaler close out.





I used a pipe cutter to cut them down. Once I cleaned up the edges the bilstein inserts slid right in. There’s no need to machine down the inserts or use a press on these.

While the bottom isn’t crimped like S4gunn talked about and doesn’t need to be pressed flat as, I believe, MaddMartigan did, there is still an inner lip that prevents the insert from going all the way down. I’m currently trying to decide if I want to try to flatten this down more to reach more threads or make an insert like S4gunn did in his thread.





I’ve also been working on modifying the upper mounts, but I’m currently still trying to remove rubber.
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I need to order a set while they're still around. It's just hard to justify, with my current parts stash. :)
jda95bird, nice tip on donor shock bodies.
I was really happy that they worked out without a lot of extra work.
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So, has anyone tried to use the 3000gt strut upper mounts as opposed to trying to modify thunderbird mounts? I was thinking about ordering one to check it out. Just from looking at pics on rockauto the bolt holes won’t align, but I feel like it would be easier to drill new bolt holes instead of everything involved with the stock ones.
I bought the KYB mounts. It was the only brand rockauto had in stock at the time. After removing the rubber the opening is around 1 3/4”. This is the same as the OEM mounts according to the MaddMartigans posts. One of the aftermarket ones were 1 1/2” but the brand wasn’t specified. S4gunn’s thread says that the holes ranged from 0.83 to 1.25 on the ones they tried out.

Removing all of this rubber is a pain in the ass. I’ll be working on this for a while inbetween my other 50 projects.
I don’t have any pics. I’m doing the same thing MaddMartigan and S4gunn did with the spherical bearings. I’m talking about the opening once you remove the center tube and all of the rubber around it.

Here is a picture from S4gunn’s thread with the rubber removed and the bearing housing in its place. That opening should be around 1.25” I believe.
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This pic is from MaddMartigan’s post.
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Thanks for the pictures of other mounts. I was able to get all of the rubber removed from mine today. Hopefully I can have everything welded this week. I used a drill with a bit to get most of the rubber out around the center insert. Once it was sufficiently holy I put it in the press and pushed it out. I then used a small pistol grip hack saw to remove large pieces of rubber. After that I found a variety of wire brush attachments for the drill worked best to clean it to the metal.

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Life has gotten in the way and I haven’t had much time to work on these. I did make some nut sleeves from stainless steel M14 bolts. I had a friend with a lathe drill the holes for me and then I tapped them. For anyone unfamiliar with metric, you subtract the pitch from the bolt size to determine what size hole to drill. The shocks are M10x1 so you need a 9mm hole. I decided to put some stainless steel M14 washers inside the housing to take up the empty space where the shock can’t fit all the way down. I glued the washers together just to make it easier to install everything. On the outside I plan to use one washer and a split lock washer. I do need to check and see how much clearance there is between the bottom of the shock and the lower control arm so it doesn’t rub when installed.



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Does anyone know why S4Gunn went with a 5/8" uniball bearing? The steinjager website also offers metric sizes. I'm not at home to check it out but the top bolt on the bilsteins should be metric. Maybe M10. The 5/8" does have a small amount of play in it. I would think that the metric bearing would be a perfect fit. Maybe too tight depending on tolerances.
It was what was available at the time.
Thanks. i was just curious.

I checked the measurements when I got home. The threaded part looks to be M14 but the shoulder underneath where the bearing rides is 15mm.
There are walkthroughs in some other threads, maybe S4Gunn’s shock thread, about using the car to put the shock together and take it apart. It shouldn’t be a problem.

The way I plan on setting it up, mine should have full thread coverage. The bearing will be directly in the middle with the mount around it like Saturn’s rings.
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Finally getting somewhere. I had a coworker weld everything up for me. I dremeled out a large washer to fit over the bearing housing and those were welded together.


This was then put through the bottom of the shock mount and welded into place.



Then another washer was welded over the top for extra support.



Now I just need to slap a coat of paint on them.
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After a coat of paint.

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Are you talking about painting the donor shocks yellow?
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Looks like I’ve got some painting to do.
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This paint has been very hard to find. It’s sold out everywhere here. My local Ace has been having problems getting their orders stocked. I was out of town this weekend, about two hours from home, so I checked the Ace website and found it in stock fifteen minutes from the hotel. I grabbed a can while I was in the area. There was another color beside it that was very close to the yellow also. I believe it was sunset.
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Is the paint not available because they don't make it anymore and vendors are just dwindling down their inventory? Or is the paint not available due to the ongoing supply chain issues? I'm curious.
Supply chain issues. The girl at Ace told me that they place orders every week to restock and they just can’t get them filled. The Walmart spraypaint aisle is only half full. It was almost completely empty a few months ago. I also had trouble earlier this year getting the grey floor epoxy I wanted for my shop. I was told that the companies are having problems getting the pigments they they need.
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I’ve got some freshly painted donor shocks.


Now on to the next problem. I made it to the junkyard this morning to pick up the washers. As the car still had tires on, it was a somewhat anticlimactic removal. My shock mounts have a washer welded to the top. This leaves just enough room for the nut. Adding the curved washer will take up most of that room. My options are removing the welded on washer which will still leave it a hair short of the nut going all the way on. Or making another nut sleeve. The shock washer still has to be drilled/ground out larger to fit on the bilstein shock anyway. I believe the threaded part is M14 threads. I would want the nut sleeve to be at least 18mm. The hole on the shock washer is 12.5mm. It would need to be larger than 18mm for the play from the bearing. Around 20-22 mm, I guess. What does everyone else think? I like the idea of the nut sleeve for the extra thread coverage.



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How much do you want for them? I may be interested. I just got a lead on a cheap super coupe I may pick up. I saw your other pics of them on the first page of this thread. How did you bolt them to the shocks?
It’s fine. It’s my thread. I may get them if I get this other SC.
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