GMC two speed

Posted by George G on August 19, 2002 at 18:58:46 from (216.177.31.113):

What years did GMC trucks have a vacuum Controled two speed rears?
I was just given one for use on my Doodle bug.
It has "GMC" cast into the rear pumkin.
The axle housing has rectanglular tappered tubes.
It looks to have had cable operated parking brakes.
The brake drumes are about 16 or 17" in diameter.
Where can I find the specs for this?
What gear ratios and what years were these axles in production?
What was the load capacity for the axle with 10.00 X 20" tires and wheel?
Are there any good books for restoring the trucks this axle would have came on, with parts break down.
Regards,
GG

Follow Ups:

• Re: GMC two speed John Ne. 16:26:05 08/20/02 (1)
  • Re: Re: GMC two speed George Gibby 14:24:09 08/21/02 (0)
• Re: GMC two speed Andy 14:22:41 08/20/02 (1)
  • Re: Re: GMC two speed George gibby 16:08:07 08/20/02 (0)
• Re: GMC two speed BC Mike C 20:58:39 08/19/02 (3)
  • Re: Re: GMC two speed George Gibby 16:14:19 08/20/02 (2)
    • Re: Re: Re: GMC two speed BC Mike C 16:41:32 08/20/02 (1)
      • Re: Re: Re: Re: GMC two speed George G 14:38:19 08/21/02 (0)

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