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LUKE68 · 09-27-2008, 06:01 PM

I've got a 1972 GMC class a 28' motorhome, I paid $600 for it originally just for the engine,a high performance 350. While looking at it to figure out how to get the engine out, I started noticing that it was in pretty fair shape and everything worked on it. I decided to keep the engine in it, then I came up with a crazy idea. I am now in the process of adding a folding second floor to it. I have already figured that it will add about 400lb to the rv. It will also be about 3 feet higher. Is this modification legal?

LUKE68 · 09-27-2008, 06:01 PM

I've got a 1972 GMC class a 28' motorhome, I paid $600 for it originally just for the engine,a high performance 350. While looking at it to figure out how to get the engine out, I started noticing that it was in pretty fair shape and everything worked on it. I decided to keep the engine in it, then I came up with a crazy idea. I am now in the process of adding a folding second floor to it. I have already figured that it will add about 400lb to the rv. It will also be about 3 feet higher. Is this modification legal?

TW · 09-27-2008, 07:03 PM

Hello Luke68, I guess you are talking about a 72 GMC Bus Coach????
Your state motor office would / should know the answers, or?!
It's a good and wild idea, sorry, that I can't help you with this question.
Whatever you do..... good luck and enjoy travels with the Coach down the road...
If it's the Motorhome (we loved that Motorhome, but could not afford it at the time), it's a Classic and you will find the most complete GMC Motorhome maintenance shop close to the Orlando airport....
RVgreetings
TW

TXiceman · 09-28-2008, 06:33 AM

Luke68, the GMC you have has the Oldsmobile Tornado drive line and I believe it is limited on the GVWR.

The folks that have the GMC motorhomes treasure them and will probably be a bit upset to see it cut up for such a conversion.

For value of the motorhome, you would be best to keep it as original as possible.

Also, welcome to iRV2.

GMC motorhomes

More GMC

Ken

LUKE68 · 10-04-2008, 04:00 PM

I looked up the GMC bus coach, and mine is nothing like them. I would love to have one, they look really cool I would never cut up anything like that. mine is considerably uglier. It is a big rectangle that looks like a shoe box with a slight slant to the front window. I think it is a GMC truck chassis that another company built a motorhome on. I have already built the floor and roof(still lack walls,trim,etc.)and I took it for a drive. the extra weight doesn't seem to pull the power down any. I can feel a little more body roll in the curves but nothing scary. It feels pretty solid and I still have enough power to spin the rear wheels on gravel. I'll keep posting my progress and hope to provide some pictures. not sure how to upload them.

Wallaby Dan · 10-05-2008, 10:57 AM

Luke68, Is this a diesel bus or a rv with a P-30 Truck chassis?? Still wondering what it is you have...GMC and Chevy both made that P-30 Chassis but most people see them as a Chevy chassis. Mine is a GMC Model as well. Its still a P-30.

TXiceman · 10-05-2008, 12:23 PM

Luke, how about a picture so we can see what you have.

Ken

LUKE68 · 10-07-2008, 06:46 PM

its a gasoline engine. I guess its a p-30 chassis. It had gmc on the hood, and the outside is made of aluminum and wood, no fiberglass. I don't have any pictures of it with me and I am currently seperated from it because I work away from home. as soon as I get back I'll put up some pictures.

Wallaby Dan · 10-07-2008, 07:33 PM

Hummmm...A Sportcoach maybe????HHUUMMMmmmm!!

LUKE68 · 10-09-2008, 03:41 PM

I've got some pictures of it but how do I post them?

Route 66 · 10-09-2008, 04:08 PM

Photo instructions are in the Website help forum, HERE.

LUKE68 · 10-09-2008, 04:42 PM

LUKE68 · 10-09-2008, 04:53 PM

Well I figured it out and its pending approval. I apologize for the quality of the picture. I found a home movie of our first camping trip in it and took a picture of it with my camera phone. Ugly isn't it? I have re painted it and it looks a little better now. Any ideas of what it is?