New idea to stabilize rear cradle
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Sometimes ideas just come to you. Some are good and some are bad so I will bounce this one off the CTS-V community here. At work we use a compound to plug telephone cables which is basically a A/B urethane compound that hardens to for a air dam within the cable. Here is my idea; I looked on McMaster-Carr and I can order Shore 85A urethane casting compound for $33.33 for 25 cubic inches. What if I were to drop my cradle and build temporary forms around the cradle mount bushings and fill them with urethane? I cannot imagine why this wouldn't work. I don't want to hate on any products but $2-300 for spacers is a bit high. I am going to order some and give it a shot. I bet a piece of large exhaust tubing and some duct tape would make a nice form.
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Everything I saw was about engine mounts. I do not plan to remove the original rear bushings but rather fill in the void in the original rear cradle mount bushings. I do not plan on producing motor mounts. I could choose from 60A 75A 80A or 94A. I have a second rear cradle so if I do it and eff mine up I won't have to buy new bushings just throw the other one in. Once I do it, I will take pics.
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Uh ok what would that urethane be used for then? I can handle if it isnt a good idea but I don't like the idea of being *** raped for a $10 bushing that they charge $300 for because they can. It's not like I said I wanted to use window urethane, I was thinking this was 2 part. Oh well if it doesn't work I am out $50. I have to look into where to buy some urethane "bar stock" that I can turn down in the lathe I guess. I have lots of projects going on right now so it isnt top priority. I am dying to get this LS1 swapped 57 I have been working on running. I ended up springing for a Dakota dash for it.
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Uh ok what would that urethane be used for then? I can handle if it isnt a good idea but I don't like the idea of being *** raped for a $10 bushing that they charge $300 for because they can. It's not like I said I wanted to use window urethane, I was thinking this was 2 part. Oh well if it doesn't work I am out $50. I have to look into where to buy some urethane "bar stock" that I can turn down in the lathe I guess. I have lots of projects going on right now so it isnt top priority. I am dying to get this LS1 swapped 57 I have been working on running. I ended up springing for a Dakota dash for it.
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I was referring to the delrin cradle bushings http://www.ebay.com/itm/2004-2005-CT...1245c0&vxp=mtr
![](http://i23.photobucket.com/albums/b371/Bowtie70SS/cradlebushings.jpg)
They basically do what I am talking about. The other ones are basically urethane washers. Thanks
![](http://i23.photobucket.com/albums/b371/Bowtie70SS/cradlebushings.jpg)
They basically do what I am talking about. The other ones are basically urethane washers. Thanks
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![](http://img.photobucket.com/albums/v219/QuicksilverG4/cradlebushingsinstalled2.jpg)
![](http://img.photobucket.com/albums/v219/QuicksilverG4/cradlebushingsinstalled1.jpg)
Last edited by FuzzyLog1c; 12-25-2012 at 03:25 PM.
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If window weld shears during a turn and you lose control of the car, that $110 you "saved" is going to look pretty stupid next to your totaled CTS-V and medical bills.
http://multimedia.3m.com/mws/mediawe...SevTSeSSSSSS--
http://multimedia.3m.com/mws/mediawe...SevTSeSSSSSS--
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Temperature range is beyond adequate for cradle bushings... -20f-120f. And I'm sure you can get urethane of higher durometer than 60a, 94A or even higher through mcmaster Carr.
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There is always a can of worms to be opened. Ok well since no one has said they tried this and it worked or didn't I guess I will leave it for now. I am sure with my table o' mods I will be doing the 8.8 swap soon enough.
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3M's documentation doesn't identify any higher durometer options.
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http://www.mcmaster.com/#liquid-urethane/=kr41e4 right on the page. Probably not 3m window weld.
Still wouldn't trust it without knowing its compressive and tensile strength.