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GMC tractor unit

Posted: Fri Sep 23, 2011 12:57 pm
by hwade
I thought some of you might like the pic of a GMC 352 I have been making into a tractor unit, although it has a open cab, i plan to remove this and refit a closed cab that I have, I think they are a better looking cab.I cant download the pic on here but there is a tread and pics of it on the HMVF forum.

Thanks Howard

Re: GMC tractor unit

Posted: Sat Oct 08, 2011 9:31 am
by Fernando Mendes

Re: GMC tractor unit

Posted: Mon Oct 10, 2011 3:30 pm
by hwade
Thanks for posting those pics.

Howard

Re: GMC tractor unit

Posted: Thu Oct 20, 2011 3:07 pm
by Didier A.
Image

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Re: GMC tractor unit

Posted: Mon Oct 24, 2011 3:23 pm
by hwade
Hello Didier

Many thanks for those pics I dont suppose there was any close ups of the brake couplings, and any written info on them, I am interested how the brakes were operated from truck to trailer.

Many Thanks

Howard

Re: GMC tractor unit

Posted: Sun Dec 11, 2011 1:22 pm
by OD cat collector
I remember seeing these 6X6 GMC trucks in the Vegetable fields of California up until the late 1970's to early 1980's when they were replaced with "mudder" farm tractors that have tall narrow tires front and rear with creeper gears to pull the semi trailers through the fields for picking the crops.

The trucks usually were fitted with super singles on the rear and I don't recall ever seeing one with a cab either.
Now I wonder what happened to all of these trucks.

Re: GMC tractor unit

Posted: Tue Dec 13, 2011 6:52 pm
by dr deuce
Some of the trailers back then had vacume brakes that worked in conjunction with the booster. You can actually run the trailer with just one line that is alternately vacume or atmosphere as the brakes are applied. The trailer has a check valve and vacume tank that gets vacume from the truck

Re: GMC tractor unit

Posted: Sat Dec 31, 2011 10:34 am
by hwade
Hello Dr Deuce

I dont suppose you have a diagram showing how the one pipe sysyem works on the trailer.The trailer that i have is a 1950s vac over hydrolic. There is still a tank on the trailer but all the piping has gone. I do still have the vac cylinder that works the hydrolic cylinder. Thanks Howard

Re: GMC tractor unit

Posted: Sat Dec 31, 2011 12:19 pm
by dr deuce
send me an email and I will send drawing

email removed as per FAQ. Click button at right

Re: GMC tractor unit

Posted: Sat Dec 31, 2011 12:56 pm
by hwade
Hello Dr Deuce

Email has been sent

Regards Howard

Re: GMC tractor unit

Posted: Sat Dec 31, 2011 7:15 pm
by dr deuce
email has been sent back to you with picture and explaination

Re: GMC tractor unit

Posted: Wed Apr 04, 2012 3:44 pm
by hwade
Well here is a pic of my GMC Tractor unit I have been building.Howard

Re: GMC tractor unit

Posted: Wed Apr 04, 2012 7:26 pm
by dr deuce
Nice!

Re: GMC tractor unit

Posted: Thu Apr 05, 2012 2:19 pm
by hwade
Hi Glad you like the truck, its a bit different, I will post another pic when trailer is finished and marked up,I will hook it up to the truck.

Thanks Howard

Re: GMC tractor unit

Posted: Fri Apr 06, 2012 6:51 am
by hwade
Heres a couple more shots of the truck, just found them. Howard