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-   -   How to Remove these Cab Mounts? (http://www.hotrodders.com/forum/how-remove-these-cab-mounts-234975.html)

777funk 07-15-2013 07:04 AM

How to Remove these Cab Mounts?
 
3 Attachment(s)
Check these pictures out. I'm sure I could knock these out with an air chisel but I'm not sure that's the best way, I'd sure hate to destroy the floor or inner rocker panels.

What's the best bet to get these out? Also, the bolts, how would I remove these? I'd guess they're rusted on good and the broken off mount parts would spin if I hit them with an impact. Maybe I could hold them from rotating with a vice grips? Check out the pics:

http://www.rocketfireguitars.com/for...nt.resized.JPG

http://www.rocketfireguitars.com/for...nt.resized.JPG

http://www.rocketfireguitars.com/for...nt.resized.JPG

John long 07-15-2013 07:22 AM

Quote:

Originally Posted by 777funk (Post 1694540)
Check these pictures out. I'm sure I could knock these out with an air chisel but I'm not sure that's the best way, I'd sure hate to destroy the floor or inner rocker panels.

What's the best bet to get these out? Also, the bolts, how would I remove these? I'd guess they're rusted on good and the broken off mount parts would spin if I hit them with an impact. Maybe I could hold them from rotating with a vice grips? Check out the pics:

http://www.rocketfireguitars.com/for...nt.resized.JPG

http://www.rocketfireguitars.com/for...nt.resized.JPG

http://www.rocketfireguitars.com/for...nt.resized.JPG

There are several ways. Some of spot welds might be able to be drilled out from the top. Some of them can be ground out with a cut-off disk on a die grinder. It is time consuming but you can get them off without destroying the cab. If you do drill them out from the top, plug weld them when you put the new mount in. It makes a very neat installation. :)

John

poncho62 07-15-2013 08:51 AM

Plasma or torch would be the simplest, get the rubber out first....If you dont have that, a grinder would get most of it....in pieces

MARTINSR 07-15-2013 09:02 AM

Quote:

Originally Posted by John long (Post 1694544)
There are several ways. Some of spot welds might be able to be drilled out from the top. Some of them can be ground out with a cut-off disk on a die grinder. It is time consuming but you can get them off without destroying the cab. If you do drill them out from the top, plug weld them when you put the new mount in. It makes a very neat installation. :)

John


As John said "time consuming" this is of up most importance, to accept that it takes some time. And that is the key, clean up the area good exposing every weld so you can remove it. You remove the weld just like "unbolting" it. Don't loose sight of that, simply remove each weld, one at a time. Some you use a die grinder with a cut off disc, others you drill out, some from the top, some from the bottom, sometimes you have no choice, it's where you have access.

Here is a "Basics of Basics" on the subject of removing spot welded on parts. http://www.hotrodders.com/forum/basi...ls-222549.html

Just take your time, you wouldn't remove a bolted on fender with an air chisel or a torch right? Why remove a spot welded on part with one? Simply "un-bolt" it, it's that simple.

Brian

oldBodyman 07-15-2013 09:19 AM

you can use an air chisel or torch at the 90% shoulder to remove the rust and leave the flange, this will give you more access to grind the spot welds. anyway you do it, it takes time and really messy. ear plugs to keep the rust out of your ears.

ogre 07-15-2013 10:02 AM

i'd use the 4'' grinder for all of it.
thin cutoff disk to cut all the bolts and cut off most of the metal.
then switch to grinder disks or flapper wheels to get back to base metal.
i use grinding disks because they're dirt cheap and last forever

deadbodyman 07-16-2013 06:17 AM

I'm not real big at sitting under something and throwing a shower of sparks all over everything so I would use a sawzall starting with the bolt then jacking up the cab a littleand cut out all of the mount leaving just the lips then drill out the spot welds...be sure to pull back the carpet if there is any BEFORE you weld the new ones in.and be sure that whole cab is on stands before you get started

123pugsy 07-16-2013 08:12 AM

Cut the bolt heads off with a grinder, take the cab off and lay it on its back to work on removal and installation of new brackets/floor braces.

MARTINSR 07-16-2013 08:24 AM

And let me say, "removing the cab" sounds like a HUGE ordeal, bordering on impossible to a lot of guys new to this stuff. But pulling that cab off is no big deal, it is no different than removing a fender,it just takes a little longer. Just nuts and bolts is all it is. :D

Brian

777funk 07-16-2013 09:32 AM

That's actually the reason I chose to work on a truck (all the parts come off).

As far as removing the cab, I have no crane or other power lifting equipment nor do I have any help currently. So maybe that would make it close to impossible? Not that I believe much is impossible with a plan.

MARTINSR 07-16-2013 11:27 AM

Watch a good rigger and you will see how it's done! My boss could take a semi cab off by himself without a hint of a problem, he is amazing at this stuff.

But on your cab, put a piece of wood across the rocker, lift that side of the cab with a floor jack. Once you get it up a little put a jack stand at the front and rear to hold it up an inch or so. Go to the other side do the same thing, then back to the first side and raise it a bit further with the jack stands, then go back to the other side. Once you have it a couple of inches off the frame you could run a 2x6 board over the frame across to each side. Remove the wheels on the chassis and put it on casters, roll it out from underneath the cab, there you go. :thumbup:

The other day I moved my cab from on a couple of boards laying on dirt over 10 feet to on the concrete pad, then put it up on the cart I made, and then raised the cart up, and wheeled it out to the garage. Did it all by myself!

Brian

777funk 07-16-2013 11:44 AM

Interesting Brian, I figured with the bed I'd hoist it up a bit with a comealong and drive out from under it (saw that somewhere). I don't know if I have anything high enough to hoist the cab up with. Sounds like your methodo should work pretty good.

MARTINSR 07-16-2013 11:53 AM

Quote:

Originally Posted by 777funk (Post 1695006)
Interesting Brian, I figured with the bed I'd hoist it up a bit with a comealong and drive out from under it (saw that somewhere). I don't know if I have anything high enough to hoist the cab up with. Sounds like your methodo should work pretty good.

Between a friend of mine who is in elevator repair and construction and my boss who was a rigger in the army, it is amazing what you can do. My boss came in one day with three Semi truck sleepers on the tow truck. I am not kidding you, it wasn't a hour or so later he is driving out with the empty truck. I walk out back and all three of those sleepers are perfectly placed at the back of the lot on 4x4s, not a scratch, blew me away.

Brian

tech69 07-16-2013 01:47 PM

1 Attachment(s)
Quote:

Originally Posted by MARTINSR (Post 1694999)
Watch a good rigger and you will see how it's done! My boss could take a semi cab off by himself without a hint of a problem, he is amazing at this stuff.

But on your cab, put a piece of wood across the rocker, lift that side of the cab with a floor jack. Once you get it up a little put a jack stand at the front and rear to hold it up an inch or so. Go to the other side do the same thing, then back to the first side and raise it a bit further with the jack stands, then go back to the other side. Once you have it a couple of inches off the frame you could run a 2x6 board over the frame across to each side. Remove the wheels on the chassis and put it on casters, roll it out from underneath the cab, there you go. :thumbup:

The other day I moved my cab from on a couple of boards laying on dirt over 10 feet to on the concrete pad, then put it up on the cart I made, and then raised the cart up, and wheeled it out to the garage. Did it all by myself!

Brian

I'm picturing a big cab and your legs wiggling about under it, "I got this!"

techinspector1 07-16-2013 01:52 PM

Quote:

Originally Posted by poncho62 (Post 1694577)
Plasma or torch would be the simplest, get the rubber out first....If you dont have that, a grinder would get most of it....in pieces

Bingo, roll out the gas axe.


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