Cab mounts

[Jeff Balazs]

Hi Guy's;

I need to get some new cab mounts.....specifically the rubber parts. I think Roberts carries them but I seem to remember a discussion about them being not quite right.....perhaps too soft. Has anyone bought these from Roberts lately? Were they OK? Or is there another source I should look at?

Thanks, Jeff

[John-T-53]

I recently bought a Roberts set and they are fine....I think just a little softer than the originals. You'll have to reuse the hard rubber mount at the front left as this is not included.

Mine compressed down a little when installed, and now the floor boards rub on the frame slightly, so now looking for some spacers...I think some Simpson square washers might be the ticket.

[ggdad1951]

hockey puck(s) machined works well for the hard side

[Jeff Balazs]

hockey puck(s) machined works well for the hard side

 

Mark......Ok I suppose I could find one of those. Did you make one for your truck? You wouldn't happen to have finished dimensions would you? I do have a restored 1948 Shopsmith lathe that would be age appropriate for this job.

 

Jeff.......old dog starting to get the hang of this new format. Now if I can just figure out how to make the font/size easier to read........

[ggdad1951]

Jeff, no I didn't use a hockey puck, I used the original, it was in very good condtion.  But my back up was the hockey puck, I can get on the creeper and take some measurments if you need them.  Litterally all you'd need to do IMO is to drill a hole and make sure it's the right thickness.  The little bit that hugs the bolt thru the cab mount is irrelavent.  I might be able to send ya a few pucks when I ship your heater tomorrow?

Edited January 24, 2013 by ggdad1951

[Jeff Balazs]

Mark;

Sounds good. That all makes sense. My cab mounts may not have been original ....the truck had been T-boned too....... certainly they were in pretty sad shape. I am just trying to make certain I have the correct bits for this. One of the several "very important" aspects of proper reassembly. If you know what I mean. 

 

Jeff.

Looking forward to getting the heater. I have been doing pretty good lately getting the last of the items I was missing or really wanted to add. Can't wait to start putting it all together.....hopefully the painter who came by yesterday will come up with a price I can live with.   

[ggdad1951]

Ok, I get a few used pucks outa the hockey bag and include them.  I'll also measure the thickness you'll need.

[John-T-53]

Do hockey pucks have any metal cast in them or are they solid plastic?

[ggdad1951]

Do hockey pucks have any metal cast in them or are they solid plastic?

solid hard rubber, no metal

[Jeff Balazs]

Guy's;

I am a bit curious as to why the hard rubber only goes on the driver side? Wouldn't both front mounts behave similarly?

I guess you can tell I haven't actually driven mine yet by this question........and I am certain there is a logical explanation.

It is always good to know.the real reasoning behind things like this.

 

This project certainly has been full of little details like this. It is really great that we have a forum like this help with the answers.

 

Jeff

[ggdad1951]

theory is that that create a more hard mount near the pedals and such,  the cab then "floats" more around the other 3.

[John-T-53]

Good to know about the pucks! I'll have to look for strays next time I'm at the "shark tank" in San Jose.

 

As for the LF cab mount being solid, I think they did this because the steering column and foot petals attach/come through the cab in this area, and you can't have too much movement by way of soft mounts.

The cab basically pivots on this point, so the driver gets the roughest ride.

[HanksB3B]

Guy's;

I am a bit curious as to why the hard rubber only goes on the driver side? Wouldn't both front mounts behave similarly?

I guess you can tell I haven't actually driven mine yet by this question........and I am certain there is a logical explanation.

It is always good to know.the real reasoning behind things like this.

 

This project certainly has been full of little details like this. It is really great that we have a forum like this help with the answers.

 

Jeff

 

No explanation I can think of:

 

Edited January 24, 2013 by HanksB3B

[Young Ed]

I believe the others are right on their explanation of why the left front is solid. My 46 is the same way and I asked an australian with a RHD truck about his. The RHD trucks have the solid one on the right.

[48Dodger]

My guess is engine rotation. On 60's Mopar muscle cars, the drivers side motor mount is usally the first to seperate (break) due to right hand rotation. An easy way to check the old cars was to block up the suspension (pass side) and hard rev the engine and watch it lift. For whatever reason.....I'm betting the engineers of the trucks felt that engine rotation lead to frame rotation etc. The four points that the cab bolts to, help it to act as a crossmember to support the middle frame. ALL the frames I have worked on have been cracked just behind the cab (usally 2 to 3 inches on the top).....I can't explain why they thought left side nuts would come flying off if they were right threads...but they did....hence left threaded nuts. So maybe.....someone thought a tougher puck was needed at that corner, to firm up the frame against engine torque.....maybe.....juuust maybe.

 

48D-etective        

[Jeff Balazs]

Thanks Guy's;

There is some good food for thought in all this.

 

Tim; Thought of you last night........ while watching "Boys of Bonneville".   Great documentary about Ab Jenkins and the Mormon Meteor.

If you all have not seen this it is well worth watching. Very cool...... lot's of great footage and a very inspiring story.

 

Jeff

[48Dodger]

OT....Hey Jeff.......Yah in 2011 the bill boards were everywhere and everyone was kinda excited about it. The museum opened up in Wendover too. Haven't seen it yet, but plan on it this year. The movie is cool !

 

 http://www.boysofbonneville.com/

 

and my video clip.....

 

 

 

48D

[Jeff Balazs]

Hi Tim;

A true pioneer of motorsports I'd say. They have some great footage and interviews in it. A must see for anyone who is into automotive stuff.

It is on Hulu Movies.......so I watched twice!

When I was a kid I got to sit in the Goldenrod. It was at the time the worlds fastest piston engined car. 4 Chrysler hemis if I remember correctly. It seemed like it was a mile long.

 

Your video won't play.......has been blocked by EMI.......not sure why? Do you have some copyrighted music on it?

 

Jeff

[Don Coatney]

I dont know how I missed the "Boys of Bonneville" movie but I just bought it on Amazon.

[Jeff Balazs]

I dont know how I missed the "Boys of Bonneville" movie but I just bought it on Amazon.

Don;

Well I just found it myself and thought I'd share it with others on the group.

I am sure you will like it.

Jeff

[Don Coatney]

Thanks for posting!

[ggdad1951]

Just measured for a PM question on the thickness if you use a hockey puck.  I'd say make the puck 5/8" thick and that is a good substitute for the solid driver front mount.