CRG Discussion Forum

Camaro Research Group Discussion => Restoration => Topic started by: Boston14 on December 05, 2014, 03:08:53 AM

Title: "Cement" used at rear shock mounts??
Post by: Boston14 on December 05, 2014, 03:08:53 AM

At this point in my restoration, I am currently installing a new complete trunk floor in my 1969 RS/SS convertible.  After removing the bolts for the lower portion of the upper shock bracket, cutting the welds and removing the upper steel mounting braces,  I found some kind of sealant under the brackets around the hole openings. UPC 4 B3 calls it cement  60a.  I can't tell from looking what it is.  Any help would be appreciated.  Thanks.


 

Title: Re: "Cement" used at rear shock mounts??
Post by: Boston14 on December 06, 2014, 03:09:25 AM

Here are a couple of pictures of the lower half of the upper rear shock mounts.  The stuff on the parts appears to be 3M strip caulk?? Maybe??  The assembly manual does give a measurement of 4.5 inches ............. for something that comes in strips, this makes sense, but for cement??  All replies are welcome.  I am sure some of you guys have rebuilt this area of your cars.  Thanks.

Title: Re: "Cement" used at rear shock mounts??
Post by: ZLP955 on December 06, 2014, 04:09:12 AM

UPC 0 lists out all the sealants and cements used, and sheet D6 calls 60a up as part 3765159, cement plastic seam, seal shock absorber opening in u/body.
Can't say what it was actually made of, but on my car it is somewhat like the sealant that was around the rear bumper brackets. 4.5 inches would probably be the length of sealant bead (of a given width) required to do both bracket locations.

Title: Re: "Cement" used at rear shock mounts??
Post by: Boston14 on December 06, 2014, 02:07:22 PM

Thanks for the reply. I saw that part number in the assembly manual for the "cement" but it is no longer a good number.  Does anyone know an equivalent product? Thanks. 

Title: Re: "Cement" used at rear shock mounts??
Post by: 69Z28-RS on December 06, 2014, 04:49:07 PM

that sure looks like strip caulk, as in 3M strip caulk (that used to be gray, but now the gray cannot be found, although black is very available).  There are other similar products that are gray or off white if you prefer those colors.  It's intention is to keep out water, and to remain pliable, not to 'cement' in a part but whether GM calls it a 'cement' or not, I do not know.. :).   I do know that Chevrolet cars thru the 50's, 60's, and 70's used it in many places where one part is bolted or screwed to another. It's  ONLY purpose I can see is to be 'pliable', and keep out water...   I use a little almost anywhere I screw something onto a body.

Title: Re: "Cement" used at rear shock mounts??
Post by: cook_dw on December 06, 2014, 05:41:40 PM

I posted this before.  I actually bought some this week & it's a dark gray.

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