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Unread 04-04-2009, 06:57 AM   #1
hold24
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rubber mount bushings

I need some help installing my rubber body mounts. I have a 78 cj7 and I bought the rubber bushing kit from crown. I can't figure out the two front frame mounts. they are a smaller hole. Any pics would be helpful. I ran the search and could'nt find any info. Plus where do the larger donuts go.

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Unread 04-04-2009, 12:39 PM   #2
keith460
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Before you install the body bushings, you must cut down the metal sleeves to size. About 1-3/8" total length or 1-1/4" length form sleeve washer to end of tube. You do not want the metal sleeve to protrude below the bottom rubber isolator or the body mounts will not compress correctly. Without cutting the tubes to length, the body won't be fastened tight enough against the frame and you run the risk of the tub shifting around a bit. All body mounts, #2-#7 get torqued to 24 ft/lbs and #5a and the front grill get torqued to 36 ft/lbs. #5a is the mount that is located above the gas tank and is bolted to a bracket off of body mount #5.

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Unread 04-04-2009, 09:57 PM   #3
hold24
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Thanks. that helps alot...but does # 2 have a bushing that actualy fits in the smaller hole in the frame mount?
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Unread 04-05-2009, 05:54 AM   #4
keith460
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Quote:
Originally Posted by hold24 View Post
Thanks. that helps alot...but does # 2 have a bushing that actualy fits in the smaller hole in the frame mount?
I believe the hole you are referring to is the one that was used in the welding jig when the frames are built. Those holes that are smaller and either round or hex shaped were used to align the brackets as they were welded to the frame.

The actual hole for the body bushings should be about 1-1/4" I.D. and that smaller hole for the jig is about 9/16".
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Unread 04-05-2009, 06:30 AM   #5
Mike Romain
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I was under the impression that the fat rubber isolator goes on the #5 mount by the fuel tank. That is where the hardest up and down effect happens, especially if you have a load on.
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Unread 04-05-2009, 07:57 AM   #6
hold24
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I'm talking about the actual hole for the rubber bodymount is smaller in position 2 than all the others. Maybe because it's a 1978 frame? I'm confused. where did you get your grill mount bushing? They do not come with the crown kit?
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Unread 04-05-2009, 08:10 AM   #7
Mike Romain
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There is a special kit for the 76-79 CJ's, it isn't the same as for the 80-86's. Did you get the correct kit?
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89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
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Unread 04-05-2009, 08:30 AM   #8
hold24
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Maybe I did'nt...I did not see any others offered. Where can I get one?
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Unread 04-05-2009, 08:42 AM   #9
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If you bought the wrong one, And need to order another. I,m looking to buy the kit for an 84 CJ 7 right now.
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Unread 04-05-2009, 09:06 AM   #10
Mike Romain
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Quote:
Originally Posted by hold24 View Post
Maybe I did'nt...I did not see any others offered. Where can I get one?
Here is one place: http://www.quadratec.com/products/26057_11.htm
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86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
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Unread 04-05-2009, 09:20 AM   #11
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Quote:
Originally Posted by Mike Romain View Post
There is a special kit for the 76-79 CJ's, it isn't the same as for the 80-86's. Did you get the correct kit?
Not trying to hijack, But what is the difference between the two? My jeep is a little mixed up and want to get the correct kit.
Thanks,
Jeff
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Unread 04-05-2009, 09:23 AM   #12
Mike Romain
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Originally Posted by jcal73 View Post
Not trying to hijack, But what is the difference between the two? My jeep is a little mixed up and want to get the correct kit.
Thanks,
Jeff
Just to take a wild guess, #2 mount is a different size for one thing...
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86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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Unread 04-05-2009, 09:34 AM   #13
keith460
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Quote:
Originally Posted by Mike Romain View Post
I was under the impression that the fat rubber isolator goes on the #5 mount by the fuel tank. That is where the hardest up and down effect happens, especially if you have a load on.
When I tore down my 84' CJ I marked each original body bushing per location and the #2 had the larger isolator on that bracket. The #2 body bracket is really the only one that has room to fit the larger isolator anyway. You also need to get a larger flat washer for that one too. All washers are 2"O.D. x 3/8" I.D. and the two for the larger isolator are 2.5"O.D. x 3/8" I.D.
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Unread 04-05-2009, 09:38 AM   #14
Mike Romain
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Quote:
Originally Posted by keith460 View Post
When I tore down my 84' CJ I marked each original body bushing per location and the #2 had the larger isolator on that bracket. The #2 body bracket is really the only one that has room to fit the larger isolator anyway. You also need to get a larger flat washer for that one too. All washers are 2"O.D. x 3/8" I.D. and the two for the larger isolator are 2.5"O.D. x 3/8" I.D.
The fat rubber and large washer fit just fine in front of the tank on mine, just put them on recently.
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86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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Unread 04-05-2009, 10:10 AM   #15
yellow85cj
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Mike - while it may have fit fine, if you look at the parts manual diagram you will see that Keith is correct that they are for the #2 mount.

Part #13 for the #2 spot and #14 for the rest.

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