P15 - Rubber Body Mounts

[clarkede]

I've noticed that my original rubber body mounts are flat as pancakes and in need of replacement.  Is this a hard job to do?  I currently have all the fenders and hood off, so access to some of the mounts is even easier than it would normally be. 

 

I'm guessing that I would need to remove the bolts that go through the deteriorated mounts and then jack up the body a little to remove the old mount and then fit the new rubber mounts in place.  Do I need to remove all the body mount bolts on one side of the car before attempting to jack up the body?  A prior post from 2008 (Joe Flanagan) indicated that the body needed to be jacked up about 4 inches to get enough clearance to remove and reinstall the new mounts. I'm guessing he removed "all" the mount bolts to do this.  Also, I have all the tires off and the car is on four jack stands - if I attempt to jack the body up a little could this make the whole car unstable?  Any advice on this would be greatly appreciated - before I buy the rubber mounts. 

[Eneto-55]

After a frame-off in 1981, at which time I just re-used the original rubber biscuits, now I have noticed that mine are also now badly deteriorated.  But I've read some general reviews on those now available, with results anywhere from 'hard as a rock' to 'soon just as flat as the old originals'.  I have not seen any information on the durameter hardness rating on the original rubber used, nor do modern replacements I've seen give the hardness rating for what they are selling.

 

Any feed-back from those who have used after-market replacements?  Sources from modern applications that might work?

Edited April 28 by Eneto-55
spelling error

[Sniper]

37 minutes ago, Eneto-55 said:

Any fee-back from those who have used after-market replacements?  Sources from modern applications that might work?

 

No feedback on the specific question, but back when I fooled around with Isoclamp cars the trick was to delete what you could (leaf spring rubber mounting) and replaces the body mounts with aluminum bushings, there were also poly bushings.  Really tightened up the handling.  I don;t knpw that anyone makes anything out of rubber any more that isn't garbage.  Casting poly isn't too hard.  Figuring out what you need as the final dimensions though...

[Dave72dt]

I would guess that loosening the bolts on one side and removing the bolts on the other side would keep the body fairly stable and retain it's position on the frame.  Replace the mounts on the side with bolts removed, replace the bolts and fasten loosely, set the body back down and repat the process on the other side.  Any additional blocking that can be put under the frame to help stabilize it might be a good idea.  Steering column, pedal, linkage, wiring may need to be addressed as well.