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#1067326 11/09/2014 2:50 PM
Joined: May 2006
Posts: 423
O
'Bolter
'Bolter
O Offline
Joined: May 2006
Posts: 423
Hi all,

I have a newly installed 235 (in a 53 1/2 ton) with vibrational issues. The rear tranny mount which I reused is shot. I have the new rubber and the mounting plate is removed. The old mount is pressed together, it isn't altogether clear to me how to replace the rubber. Somewhere in earlier posts I have read how the experienced dudes have replaced those steel pressed posts with some kind of bolts, but I can't find those posts now.

So, how should the talented amateur replace the tranny mount rubber? There isn't a lot of clearance over and under.

Karl


It may not be the easy way, but it is the Cowboy Way - Ranger Doug
Beware of the stories you read or tell; subtly, at night, beneath the waters of consciousness, they are altering your world. - Ben Okri
1953 Chevy 3100
1960 Volvo PV 544
1941 Chevrolet Special Deluxe
Joined: Jun 2012
Posts: 1,747
S
'Bolter
'Bolter
S Offline
Joined: Jun 2012
Posts: 1,747
Just did this on my 52 1/2 ton. Was not too tough. The worst part was the "dis-assembly" of the old mount. I saved the "posts" from the mount and drilled them for a new bolt to slide through. I used rubber from a big truck mud flap to make the damper bit. Bolted it back together and it works just fine. Inexpensive hollow punches from Harbor Freight made the holes in the mud flap and just a bit of compression when I put it back together. In conclusion, the posts become sleeves, and the mud flap is the rubber part. If your old posts are missing, cut some thick wall tubing and adjust the length until you get some compression on the mud flap material. A little paint and off you go. I did double the mud flap to get close to the original thickness. I hope this is helpful.


Steve H
Joined: May 2006
Posts: 423
O
'Bolter
'Bolter
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Joined: May 2006
Posts: 423
I've got a buddy who is good with a welder. I expect he will weld new threaded rod the size of the old posts in place of the posts. The clearance above the bracket is not very much. I don't understand how you can run bolts through those hollowed out posts without the bolt heads running into the tranny.

Those rubber parts are available from the vendors. They weren't expensive. But after seeing them I can imagine making them out of any other thick rubber, like cut up bits of tires or mud flaps. Good idea!

Karl


It may not be the easy way, but it is the Cowboy Way - Ranger Doug
Beware of the stories you read or tell; subtly, at night, beneath the waters of consciousness, they are altering your world. - Ben Okri
1953 Chevy 3100
1960 Volvo PV 544
1941 Chevrolet Special Deluxe
Joined: Jun 2012
Posts: 1,747
S
'Bolter
'Bolter
S Offline
Joined: Jun 2012
Posts: 1,747
two bolts right where the old ones went. plenty of room. and the replacement is about 60.00 plus shipping.
http://www.classicparts.com/1947-54-Rear-Transmission-Mount/productinfo/79-204/#.VF_rafldVmN
Even with the replacement pad you will need to adress the bolts, spacer, issue.
http://www.classicparts.com/1947-54...ad-pair/productinfo/79-205/#.VF_sI_ldVmM
Was not too difficult.


Steve H
Joined: May 2006
Posts: 423
O
'Bolter
'Bolter
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Posts: 423
I hadn't found that source for the whole mount. SO now I'll deal with the pads. It'll work out. Thanks for the advice.

Karl


It may not be the easy way, but it is the Cowboy Way - Ranger Doug
Beware of the stories you read or tell; subtly, at night, beneath the waters of consciousness, they are altering your world. - Ben Okri
1953 Chevy 3100
1960 Volvo PV 544
1941 Chevrolet Special Deluxe
Joined: Feb 2004
Posts: 29,795
H
Kettle Custodian (pot stirrer)
Kettle Custodian (pot stirrer)
H Offline
Joined: Feb 2004
Posts: 29,795
Karl, how about using a rounded-head carriage bolt as a through bolt, and grind the rounded section flat on top a little if necessary for more clearance? You can either slot the top of the bolt for a big screwdriver, or figure out a way to file the top hole into a square to accommodate the carriage bolt head.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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Joined: Sep 2001
Posts: 29,269
Bubba - Curmudgeon
Bubba - Curmudgeon
Joined: Sep 2001
Posts: 29,269

Joined: May 2006
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O
'Bolter
'Bolter
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Posts: 423
I got the parts back from my welding dude. He had ground the pins from the old bracket, got it all in pieces, and then just gave it back to me. I had not expected those hollow spacers. Once I saw them I could see that Hotrod's suggestion with carriage bolts makes most sense. So the bracket is in place.
The better remains of the old rubber felt like a loose sponge. Half of the rubber was gone gone gone
Now I am working on the front mount...
Thanks for the help, guys

Karl


It may not be the easy way, but it is the Cowboy Way - Ranger Doug
Beware of the stories you read or tell; subtly, at night, beneath the waters of consciousness, they are altering your world. - Ben Okri
1953 Chevy 3100
1960 Volvo PV 544
1941 Chevrolet Special Deluxe

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