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Cheaper replacement for '91- glove box shock/damper?

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Old 03-24-2008, 06:37 PM
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dprantl
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Default Cheaper replacement for '91- glove box shock/damper?

So I'm looking to replace the shock on my '91 GT's glove box (928 552 752 00) and saw that the price for one is ~$100!? WTF... has anyone found an aftermarket replacement that is more sanely priced, considering much larger shocks cost less than 1/5th the price?

Dan
'91 928GT S/C
'86 928S 5-spd w/LSD *sale pending*
Old 03-24-2008, 06:44 PM
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JP Rodkey
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Around this time last year, I went through the search. Found the OEM and tried for a competitive crossover - none found. Tried to match it with other vendors by functional and dimensional description, but could never find one with all the attributes. OEM, by contract with Porsche, is not allowed to sell that part to any party except Porsche.

After several weeks, emails, and loads of phone calls......I ordered a new one from one of the Big 3 and never looked back. Perhaps things have changed, but that was my attempt.
Old 03-24-2008, 06:49 PM
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mcholdfast
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Originally Posted by dprantl
Dan
'86 928S 5-spd w/LSD *sale pending*
I don't know about glove box shocks but that sale has been pending for some time now hasn't it? Is the '86 still available?
Old 03-24-2008, 07:37 PM
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Jim bailey - 928 International
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Porsche has not yet amortized the design and tooling costs based on the sales of airbagged dash 90-95 model 928s ...there are so few !
Old 03-24-2008, 08:00 PM
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RyanPerrella
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How does one adjust the latch pickup on the airbag dash glove box?

Mine latches and it sits a little low. I would like to raise the latch point so the box looks correct? How does one do that? Ive looked up there but i am not sure what to adjust, can i adjust the hook itself, or do i have to adjust the hinge for the door itself and somehow raise it.

Any tips for this?
Old 03-24-2008, 09:13 PM
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dprantl
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Originally Posted by mcholdfast
I don't know about glove box shocks but that sale has been pending for some time now hasn't it? Is the '86 still available?
Nope, I just said goodbye to it 5 minutes ago

Dan
'91 928GT S/C
'86 928S 5-spd w/LSD *sold*
Old 03-24-2008, 09:39 PM
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Ed Scherer
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Holy crap! Those have sure gone up! I did mine back in November 2003. Cost was $35.98 for exactly that same part from 928 Specialists.

Let me dig through my stuff a little; awhile back, I found a good source for various air dampers. I was actually looking for replacements for the ones used on our spa cover. I found one source that had a huge variety, but I don't remember who it was offhand. And I'm not sure I'll be able to find my info on this very quickly...
Old 03-25-2008, 02:02 AM
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Erling G-P
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What is the function of this shock/damper ?

When I open my glovebox, it just drops down with a 'clunk'. Is it supposed to be damped in some way ?

Cheers,
Erling
Old 03-25-2008, 10:07 AM
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Ed Scherer
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Originally Posted by Erling G-P
What is the function of this shock/damper ?

When I open my glovebox, it just drops down with a 'clunk'. Is it supposed to be damped in some way ?

Cheers,
Erling
Yeah, with a properly functioning damper, it gracefully opens over about a one second period, slowly revealing its contents without startling you or your passenger.

BTW, I haven't been able to turn up the research I did on this stuff awhile back. It must be buried deep in one of my "dormant projects" piles somewhere.

I did, though, turn up a photo of when I did this replacement back in 2003; it shows the damper just hanging there before the glove box is reassembled. Unfortunately, the damper is turned in a direction where you can't read the label. Does anyone have the OEM code off the damper? Is it a Stabilus? If you can get the OEM code off the damper, a web search might turn up a suitable OEM replacement.

Stabilus makes a huge variety of these dampers.

Edit: Oops, I just reread some earlier posts and see that JP already went through this routine and discovered that this might be one of those "impossible to get through other channels" parts. I'd still like to know what the OEM code is, though.

Old 03-25-2008, 11:11 AM
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GeorgeM
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Mine wasn't connected either and when I tried to mess with it, I found out that it's leaking.

Even with just the owner's manual in there, the door opens hard enough that one of these days, I expect it to clunk open right onto the floor.

The holes in the glove box that accept the bracket screws seem very shallow, i.e. they don't go all the way through into the glove box. I have no screws, so can anyone provide specs on them? Maybe a pic?
Old 03-25-2008, 11:19 AM
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AO
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If anyone knows the throw of this thing, you might find a replacement at an RV source. A very quick google search turned this up... looks promising to me.

http://www.pplmotorhomes.com/parts/r...as-springs.htm
Old 03-26-2008, 09:32 AM
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GeorgeM
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Anybody measured their glove box damper yet?

I can do it, but was hoping someone might already have theirs apart enough to get in there.

G
Old 03-26-2008, 09:37 AM
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AO
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I might get in there tonight... oh wait a minute, we have a guest coming to dinner, so probably not. Free bump!
Old 03-26-2008, 11:31 AM
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Ed Scherer
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Pack-ratism pays off again.

Found my old damper in my box of old parts. And note that this is a (probably oil-filled) damper, not a gas spring; it doesn't "want to be" extended and spring out when it's in its compressed state like a gas spring does. A starting point could be the damper section on the Stabilus website.





(Refresh your browser if the second photo above doesn't have at least six measurements shown. I've recently updated the photo.)

The information written on the cylinder (you can easily read it in the photos, but I'll include it here for the sake of text searchability) is:

Stabilus
54 Koblenz W Germany
503487 23/89 E 02

I'll repeat the dimensions I've added to the second photo:
  • extended length with connecting parts: 185 mm
  • extended length without connecting parts: 150 mm
  • compressed length with connecting parts: 125 mm (see first photo)
  • stroke: 60 mm
  • rod diameter: 6 mm
  • cylinder diameter: 15 mm
  • ball diameter: 8 mm (if possible, someone should confirm this by measuring the ball; I just measured the inside of the socket with an inside caliper as best I could)
Also:
  • should dampen on extension
  • should not dampen on compression
  • required damping force on extension: unknown at this time
  • linear or progressive: unknown at this time (linear is best guess)
I'm pretty sure that the "503487" is the important part. 23/89 is probably a date code (the 89 is almost certainly 1989, as this was the original part in my '90 S4).

JP is probably right; this one might be hard to obtain as an OEM part.

My first Google search did result in one hit at a Danish site. That at least confirms that this is a damper in Stabilus's "Stab-O-Shoc" line.

Last edited by Ed Scherer; 03-28-2008 at 01:12 AM. Reason: Added more measurements
Old 03-26-2008, 11:51 AM
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Ed Scherer
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BTW, as of right now, 92855275200 lists for $84.40 at 928 Specialists. Support your Rennlist sponsors (and dedicated 928 parts vendors) and all that.

You have to factor your time into this equation, too.


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