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> Old School Bumpers, retrofitting to a 76
Bleyseng
post Jan 22 2004, 09:35 PM
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Ok, I'll dig them out of the assortment box (pile of shit box) tomorrow.
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maf914
post Jan 23 2004, 08:03 AM
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QUOTE(Gint @ Jan 22 2004, 05:46 PM)
QUOTE
For the early fogs I used a blind nut which is the right size to accept the allen bolt. You drill the hole, in push it in and then tighten it up with this gizmo. I expands and locks into place just like the OEM one except its not welded in place.

Geoff


Whaaaa!?!?! Pics please. Thanks Geoff.

Gint,

I think these are also called Riv-Nuts, since they are inserted into a hole and then expand and lock into place when the bolt is screwed in. Sort of like a rivet.

Mike
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Bleyseng
post Jan 23 2004, 08:29 PM
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heres the pieces put together


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Bleyseng
post Jan 23 2004, 08:30 PM
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here is the 3 pieces


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Gint
post Jan 23 2004, 10:34 PM
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Thanks Geoff. I've never seen those before.
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Neal
post Jan 24 2004, 12:28 AM
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Geoff, were do we buy them ?
Neal
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Bleyseng
post Jan 24 2004, 12:29 AM
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I found them at Hardwicks in Seattle but I am sure there must be a online nut and bolt supppy house that sells them.


Geoff
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Neal
post Jan 26 2004, 09:45 AM
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Now that I have the hardware what is the best wat to mark the location of the mounting holes ?. I have a 76
Neal
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boxstr
post Jan 26 2004, 09:53 AM
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Do you have the dogbones?? Those will give you the exact distance between the holes. ( top to bottom).
Look very closely at the area where the bumper holes are going to be drilled. You will find small indentations that are where the holes will go. Put one dogbone in that position and with a thin marker pen make your mark and double check by setting the bumper up to the area.
When you drill the hole, and it you are using bolts, make the holes larger than the bolt, you need a little cheat room to move things around. Take pics and send back and show us your progress.
CCLINBUMPERCARS
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Neal
post Jan 26 2004, 10:05 AM
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Craig, thanks very much for the reply, I do have dog bones and I was going to use studs in the bumpers so all I would have to do is put a washer and locknut on the backside of the stud, that seems like an easier way to hang the bumper.
Do you happen to know how long the factory bumper bolts are ?

Neal
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boxstr
post Jan 26 2004, 12:20 PM
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Neal I like the stud idea. I would try that next time also.
I think that the bolts are 3-3.5" long. It won't matter if they are to long anywhere. Just a deeper socket will be needed.
CCLINSTUDSTERKEL
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D1A3
post May 27 2006, 10:09 PM
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Can somebody post a pic of the inside of their trunk where the bolts go through? I am backdating this weekend and would appreciate the reference point.

Oh, regarding the "slight indentations" on the rear as noted above... I don't have them/can't see them. So far, just trying to line things up...

Regarding the old bumper cover tabs, I just bent them back and then used a rubber mallet to poiund them flat with the body. Any concerns with that? New rear chrome bumper seems to align fine.
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jd74914
post May 28 2006, 09:02 AM
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QUOTE(D1A3 @ May 28 2006, 12:09 AM) *

Can somebody post a pic of the inside of their trunk where the bolts go through? I am backdating this weekend and would appreciate the reference point.


The bolts go into the fenderwells, not the trunks. On the front they are just about centered, and I don't remember what the rear looked like.
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boxstr
post May 28 2006, 09:32 AM
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If you have the dogbones they will give you the distance that you need for the holes that you will drill in the front and back.
The front holes exit out the back into the fender wells. The rears exit out in the engine bay or muffler area and the top hole exits into the rear trunk just below the tailights.
I do not have a pic to post. You will need the dogbones and the early
bumpers themselves to help give you a better idea as to where everything is drilled.
I also highly recommend that yuo get studs and screw them into the front and rear bumpers, and then secure them on the car with washers and nuts, rather than using the bolts, it is MUCH MUCH easier.
CCLINSTUDMUFFIN


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Joe Bob
post May 28 2006, 09:33 AM
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BTW...once you have the bolt holes drilled....tape the dogbones to the bracket....makes the install easier....
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boxstr
post May 29 2006, 05:12 PM
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Here are some pics on the outside first the back then the front. also a pic of the inside of the rear trunk also a pic of the inside of the front wheel well.
Craig


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boxstr
post May 29 2006, 05:14 PM
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The final few...


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maf914
post May 30 2006, 11:47 AM
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Craig,

Thanks for the additional photos. This thread should go into the classics.

Just for info, the 75-76 Euro cars came with big rubber bumpers but without the shock absorbers. The steel structure inside the rubber bumper covers bolted directly to the body using two bolts and a rubber dogbone on each end. The Haynes manual shows this setup. I guess that is why the indentations for the bumper bolts are present in the 75-76 US cars.
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D1A3
post Jun 4 2006, 07:59 PM
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Thanks all for the photos aqnd keeping this thread going. Got the bumpers on this afternoon and now are looking for the Blind Nuts to attach the fog lights.

Does anyone know of a web location that I can get these and in what size is best? I checked locally in Atlanta today and could not find any...
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dhopkins
post Oct 28 2006, 09:39 PM
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This is a great thread. Anybody got more pictures for the
conversion process?

Don
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1969 911S
1976 914 2.0
1981 911SC
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