I ordered all the ones that are still available from GM, but some of the uppers are discontinued. Anyone have a source for them?

All of the mounts on my car seem to be in good shape but I want to use new ones if I can. The body will be coming off of the frame fairly soon so I'm hoping to have this problem solved as soon as I can.

Where did you order them from? On line or go to the dealer? Do you mind if I ask cost? Did you consider polys? Tom

I got them from the local dealer (they treat me right).

I paid a bit over $200.00 for the whole batch.

As far as I know, no polys are available for the 4th gen.

Heads-up 4th geners!

GM incorrectly lists the radiator support mounts for our cars in their parts database. The listing is for a mount that is for something else. When I discovered this I took the numbers off of the original mounts and the good news is that a limited number of the right parts (lower and upper) are still available. Once I'm sure that I have the right parts I will post all of the part numbers involved.

If you are considering replacing yours, do it soon as what GM has in stock is all that they will ever have and the parts man tells me there aren't very many left.

Oops!

I thought that I had posted the right numbers for the rad support mount here (Sorry Peter from Germany).

I will check out the numbers and post the correct number for this mount position tomorrow.

I haven't lifted the body of my '77 yet so the rest will have to wait until then. But I promise to document all of the numbers for all of the mount points when I do.

OK here we go, I lost my cheat sheet so I'm sticking with just the rad support numbers for now.

The original numbers:

Lower 330952

upper 330991

The new numbers

Lower 330951

upper 457915


The upper mount is slightly different from the original, but should work perfectly. I'll know for sure very soon. These are all GM numbers if your parts department looks up the old ones these are what will come up.

If you just ask them to look up the application, you will get completely wrong lower mounts (I think the number ends in 4780). Those mounts are metal encased and are for something else. GM's database has an error when you search for these by application.

I took some pics of new and old mounts and will post them later if they come out well.

Once I find my cheat sheet, I will try to post all of the numbers I have figured out for the other body mounts. The two I have listed for the rad support are also used in other mount positions for the body.

Some pics:

http://img87.imageshack.us/img87/8586/1000720js0.th.jpg (http://img87.imageshack.us/my.php?image=1000720js0.jpg)

http://img64.imageshack.us/img64/7751/1000714ra8.th.jpg (http://img64.imageshack.us/my.php?image=1000714ra8.jpg)

http://img64.imageshack.us/img64/1433/1000715fz4.th.jpg (http://img64.imageshack.us/my.php?image=1000715fz4.jpg)

http://img407.imageshack.us/img407/8292/1000716pz8.th.jpg (http://img407.imageshack.us/my.php?image=1000716pz8.jpg)

http://img407.imageshack.us/img407/7673/1000717ym0.th.jpg (http://img407.imageshack.us/my.php?image=1000717ym0.jpg)

http://img87.imageshack.us/img87/538/1000718vq8.th.jpg (http://img87.imageshack.us/my.php?image=1000718vq8.jpg)

http://img442.imageshack.us/img442/4668/1000719gl1.th.jpg (http://img442.imageshack.us/my.php?image=1000719gl1.jpg)