65 Burb body mounts
 

Did a quick search over the forums and didnt see any posts about this so I thought I would ask...

Took the body off the frame a few weeks ago and most of the body mounts were toast. Does anyone know a source for a pack of new ones? I found a few places that sell 67+ but they're all round, looks to me like the 65s have to be rectangle in some places just to fit where they need to go. Any ideas?

Thanks!

Re: 65 Burb body mounts
 

classic industries has them listed as 69-72. the earlier ones supecedes up to 69-72 and was used up to about 2000 in blazers
ron

Re: 65 Burb body mounts
 

sorry to hi-jack, but will be looking for same. Don't see on classic industries website the mounts you are referring to? http://www.classicindustries.com/truck/parts/g2423.html

Re: 65 Burb body mounts
 

I was wondering the same thing but I think I am going to get the pack of rounds and see how it goes. I generally buy from lmc so I'm going with this kit - http://www.lmctruck.com/icatalog/cb/full.aspx?Page=37. We'll see how it goes

Re: 65 Burb body mounts
 

Thanks for the response Ron, I think that got me going in the right direction.

Re: 65 Burb body mounts
 

Which kit? Part # 30-0131 BODY MOUNTING KIT-70PC?

Re: 65 Burb body mounts
 

If you do go with the later model round ones. please report back on how they fit.

Re: 65 Burb body mounts
 

http://www.classicindustries.com/truck/parts/g2423.html are the ones.
there are specific measurements for these. they do mount top and bottom and the tabs interlock to keep them in position. you need 16 of them
ron

Re: 65 Burb body mounts
 

The frame holes on the burbs are 3 different sizes, I used the 69 mounts but had to use rubber hose in some to make up the difference check your frame.

Re: 65 Burb body mounts
 

Re: 65 Burb body mounts
 

Quote:
Originally Posted by padresag View Post
http://img19.imageshack.us/img19/8488/dscn2109c.jpg
By rondavid at 2009-12-30

http://img51.imageshack.us/img51/1885/dscn2107f.jpg
By rondavid at 2009-12-30
pics of suburban-panel body insulators

Ron, this is Lewis. Please forgive me for not getting back sooner, but I have been busy in my work for the church I serve. I checked both my 65-66 parts manual and my 67-72 parts manual. This is what I discovered: 1964-6 body mounts are p/n 3794779, w/dimentions of 1.76" w; 3.00" l; 0.92" thick, needing 8 (up & lwr same). The 67-8 p/n is 3909351 up & lwr, 69-72 uses 3909351 as the lwr, but p/n 3946246 is the upr. No dimentions are given for these cushions, and it seems that the frame changed in '69. Qty's in 67-8 are 16, with 69-72 requiring 10 of each. If you have dimentional axcess to the later cushions, these 64-66 dimentions should help you. Like you, I suspect that the 67-8 cushions will work, but there is no superseded p/n's between the body styles. I can tell you that years ago I bought cab mounts for my 65 and the p/n's had superseded to the mounts for the 67-72 cabs. I hope that this info is of some assistance in answerring this question.

the dimensions sound right. the .92" high includes the raised section around the bolt hole.
The measurement excl the raised section is between about .73-.74" high
hope that helps
ron

you can see one that is partially collapsed in the top right

I did some follow up on these insulators and the 3946246 is still a good # from gm. it is stocked in Lansing, mich. it is on the discontinued list though. list at about 25.00 each. they were last listed as the #3 upper body insulator on a 73-91 blazer/jimmy. classic industries has them for 13.00 each and look under 69-72 suburban
ron
they work on the 64-66 suburbans
padresag is online now Report Post Reply With Quote

Re: 65 Burb body mounts
 

Thats the one I bought. I put the body back on the frame (without mounts at the moment, had to get it off the rotisserie) so as soon as I get them in I'll attempt to install them and take some pics.

Re: 65 Burb body mounts
 

classic ind. also shows a 67-72 suburban mount kit and if it works is less money than buying the rectangular ones singular. I thaink that the frt cab mounts are different than the 60-66 one though
http://www.classicindustries.com/tru...ts/34149g.html
ron

Re: 65 Burb body mounts
 

it would be the way to go if one knew if they fit(looks basically as the one 67-72 kit from classic ind.). it would be good if one could get measurements of the g=height of the upper insulators and what size that they are where they fir into the corresponding holes in the frame mounts; but you could always modify that hole to work properly
ron

Re: 65 Burb body mounts
 

I used the 69-72 style. The holes in those are larger, so I enlarged the holes in the steel frame mounts. I then made a steel spacer, just like original, but the same diameter as the 67-72 mounts. I made 10 all together, but 2 of them were longer than the other 8. In retrospect I would have installed them without the extra trouble of making spacers. I don't see them moving once they are installed and tight and I could have glued them down. Or I would have gone to a place in El Cajon, Cal. that sells everything and anything rubber and I would have made my own. They are a little over 9/10 of an inch with a vulcanized piece of rectangular steel that is 1/8 of an inch thick. I played around with making urethane ones but i did not like how rigid they were. Mine's a 4x4 so I wanted a bit more flex and I was afraid that it would create stress cracks in the body. For the front ones you can use truck mounts and you are 20% there.

Re: 65 Burb body mounts
 

Extract from Shop Manual. Just so I'm clear, the cab mounts (#1 and 2) for Burbs and pickups are the same, round biscuit type? And the rear mounts are the rectangular style, #s 3, 4, 5, and 6?

"Panel and Suburban
The number 1 and 2 body mounts of all Panel and Suburban vehicles are as shown in Figure 4. Mounts typical of numbers 3, 4, 5, and 6 of these vehicles may be seen in Figure 5."

http://i1100.photobucket.com/albums/...MountsFig4.jpg

http://i1100.photobucket.com/albums/...BodyMounts.png

Re: 65 Burb body mounts
 

I believe only the first mount is "truck style" as the second steel frame mount sits lower on a Sub vs. truck. Makes sense since the Sub has the lower floor for seating.

Re: 65 Burb body mounts
 

only the pictured nbr 1 is used . in figure 5- panel and suburban body mount the one with the letter A is actually the "B" pillar insulator which is in the same position as nbr 2 mount in the above fig 4 illustration.
in the fig 5 illustration the separate view "A" is the suburban mounting while the other is panel mounting as the panel floor goes up right behind the seat and the suburban allows for a footwell as the back floor is shorter
ron

Re: 65 Burb body mounts
 

but the bolts and holes in the frame, are different sizes depending on location

Re: 65 Burb body mounts
 

second mount near rear step in burb is rectangular type.

Re: 65 Burb body mounts
 

[QUOTE=RoyL;5024174]Extract from Shop Manual. Just so I'm clear, the cab mounts (#1 and 2) for Burbs and pickups are the same, round biscuit type? And the rear mounts are the rectangular style, #s 3, 4, 5, and 6?

only the frt mount that lines up with the "A" pillars is round. the other 4 insulators towards the rear are all rectangular.there are only 5 mounts in total down each side
ron

Re: 65 Burb body mounts
 

my old mounts notice differences in thickness and square versus rectangular

Re: 65 Burb body mounts
 

new versus old

Re: 65 Burb body mounts
 

Don;I have taken 4 sets out and they have all appeared to be the same, though they are off the 64-66 vintage. earlier ones may have been different.
ron

Re: 65 Burb body mounts
 

i got what i got lolol. the narrow ones went in a spot where there was little clearance. I remember grinding down one side of the mount about 1/8 of an inch to get it to line up. maybe i'll get under her and take some pics of the install. i have a 60 burb for parts, i've never been under to compare.

Re: 65 Burb body mounts
 

Alrighty, to put a cap on my original post - I bought the 30-0131 from the LMC site (http://www.lmctruck.com/icatalog/cb/full.aspx?Page=37). Finally received them on Monday and just got them installed today. Everything went swimmingly with two exceptions - there are two bolts that are 3-4 inches too long and a set of bolts that are an inch too short. I went ahead and installed the ones that were too long, not a big deal and I can cut them later. I'll have to hit the hardware store to pick up two more for the ones that were too short.

Some pics: http://www.flickr.com/photos/71281546@N08/

Now I just need to find someone to do the body work and I'm ready to reassemble. I also need to find the engineer who thought up the location for the front most fender bolt and beat him. I'll unfortunately have to do the same to the guy who cut the dash for a dual din head unit. :devil:

Re: 65 Burb body mounts
 

how come that you used the shims on some and not others.in the 60-66 I believe that the 4 rear on each side are all the same height. for your frt cab mount did you use the 67-72 mount ?. can you give the thickness(height) of the rear insulators without shims= the top one only please
thks
ron

Re: 65 Burb body mounts
 

I used a high density/ozone/oil/heat/UV resistant rubber from McMaster-Carr & re-used the OE metal plates. Cheap fix.

Re: 65 Burb body mounts
 

Four bolts came with shims - the big ones for the front of the cab and the two really long bolts. I wasnt quite sure where those went so I stuck them as the third back. Not sure if the shims need to be there or not. None of the mounts looked like they needed shims at all. I figured the middle would need the most support. If someone knows please correct me so I can put them where they need to be :)

For the front cab mounts I used the ones that came with the package but yes, they were pretty much the same as the 67-72 mounts (I had a set of those for a different project). I'll try and get out there tonight or tomorrow to get the thinkness of the insulators but I'm fairly certain they were the same as the old ones were supposed to be. Somewhat hard to tell as mine were so badly damaged.

Re: 65 Burb body mounts
 

Now that I look at the picture on the LMC site, the shims were supposed to go right after the front cab mounts. I'll probably move them there though I'm still unsure if they're even needed.

Re: 65 Burb body mounts
 

Follow-up on the rectangular mounts: P/N: 3946246. verifying that these are the rectangular ones? If so, GM parts direct has them for ~$8 each
http://www.gmpartsdirect.com/results...number=3946246

Re: 65 Burb body mounts
 

sure looks like it. thks
ron

Re: 65 Burb body mounts
 

I did order 32 of them and the reply was that they were a discontinued item and to look elsewhere
ron

Re: 65 Burb body mounts
 

I placed an order also, have heard nothing on status . . .

Re: 65 Burb body mounts
 

I sent an email to customer service asking about avail and shipping to Canada. I did get a very prompt reply and I sent it back asking then why they were listed and on sale. Promptly got the same reply and didn't you hear me the first time. I will always question why
ron

Re: 65 Burb body mounts
 

I received 16 of these today... looks like the real deal. Placed the order Thanksgiving weekend sometime. When did you place yours?

http://i1100.photobucket.com/albums/...t/F12BD6D9.jpg

Re: 65 Burb body mounts
 

The dimensions on these: 3946246 rectangular mounts: http://www.gmpartsdirect.com/results...number=3946246

are:

3" long
2.1" wide
3/4" thick

What I currently have on my 65 Burb are 3" long x 1 3/4" wide. Steel spacers are 1 3/4" as well.

I thought these 3946246 were what I needed . . . I believe I can use them, looks like there's room in there between the channel.

Anybody got the dimensions for these from Classic Industries? Wondering if they are 1 3/4" wide vs 2":
http://www.classicindustries.com/truck/parts/g2423.html

Re: 65 Burb body mounts
 

From previous: "This is what I discovered: 1964-6 body mounts are p/n 3794779, w/dimentions of 1.76" w; 3.00" l; 0.92" thick, needing 8 (up & lwr same). The 67-8 p/n is 3909351 up & lwr, 69-72 uses 3909351 as the lwr, but p/n 3946246 is the upr. No dimentions are given for these cushions, and it seems that the frame changed in '69."

Not clear what the GM P/N is for those cushions sold by Classic Industries...

Re: 65 Burb body mounts
 

here is what I orginally posted
the following is what Lewis Matkin sent to me. the pictures are mine and
I will have some more later for you as I have to check something out

Ron, this is Lewis. Please forgive me for not getting back sooner, but I
have been busy in my work for the church I serve. I checked both my
65-66 parts manual and my 67-72 parts manual. This is what I discovered:
1964-6 body mounts are p/n 3794779, w/dimentions of 1.76" w; 3.00" l;
0.92" thick, needing 8 (up & lwr same). The 67-8 p/n is 3909351 up &
lwr, 69-72 uses 3909351 as the lwr, but p/n 3946246 is the upr. No
dimentions are given for these cushions, and it seems that the frame
changed in '69. Qty's in 67-8 are 16, with 69-72 requiring 10 of each.
If you have dimentional axcess to the later cushions, these 64-66
dimentions should help you. Like you, I suspect that the 67-8 cushions
will work, but there is no superseded p/n's between the body styles. I
can tell you that years ago I bought cab mounts for my 65 and the p/n's
had superseded to the mounts for the 67-72 cabs. I hope that this info
is of some assistance in answerring this question.

the dimensions sound right. the .92" high includes the raised section
around the bolt hole.
The measurement excl the raised section is between about .73-.74" high
hope that helps
ron
if you have trouble reading this or understanding it ask
that raised section adds about .200 " to the height

no one ever reads the whole thing do they
ron

Re: 65 Burb body mounts
 

Talked to Classic Industries, their PN # G2423: http://www.classicindustries.com/truck/parts/g2423.html
measures 3" x 2.1" so it looks like they are the same as GM p/n 3946246: http://www.gmpartsdirect.com/results...number=3946246

I'm wondering if mine are the original mounts, measuring 1 3/4"
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