Log truck and trailer brakes
Log truck and trailer brakes
I'm considering building a log truck, using a '31 AA cab/chassis/running gear. Before jumping off on this, I have some questions. What brake linkage system was used for semi-trailers in the 1930-31 era? And, what wheelbase should I use for the cab/chassis?
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Re: Log truck and trailer brakes
I think your best bet would be vacuum operated mechanical brakes.
Bob
Bob
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Re: Log truck and trailer brakes
I wonder if that company is still in business? May be fun to try order one!! Show them that sales sheet!!
KVO
Dec. '28 AA
Dec. '28 AA
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Re: Log truck and trailer brakes
Just a heads up - depending on your state antique or not you may need a CDL to drive it...
- Chris Haynes
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Re: Log truck and trailer brakes
double post
Last edited by Chris Haynes on August 1st, 2018, 11:34 am, edited 1 time in total.
- Chris Haynes
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Re: Log truck and trailer brakes
Fruehauf went out of business in 1989. https://www.singingwheels.com/what-happ ... mpany.htmlKimVanOrder wrote: ↑July 31st, 2018, 3:41 pmI wonder if that company is still in business? May be fun to try order one!! Show them that sales sheet!!
Re: Log truck and trailer brakes
Thanks for the advice, gentlemen. I'm assuming that in the era of the Model A's and mechanical brakes, semi trailers simply did not have brake axles. Is this a fair assumption?
Also, when choosing a chassis to build a log truck project (or any truck with a fifth wheel to pull a semi-trailer), would you choose a 131.5 inch wheelbase or a 157 inch?
Also, when choosing a chassis to build a log truck project (or any truck with a fifth wheel to pull a semi-trailer), would you choose a 131.5 inch wheelbase or a 157 inch?
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Re: Log truck and trailer brakes
I have a vacuum operated brake system for mechanical brakes I might consider selling
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Re: Log truck and trailer brakes
Do you plan to haul logs with it? if so longer the wheelbase the more stable it is under braking (wont jackknife as easily) but also increases turning radius and physical space it takes up. Most vintage pics ive seen of AA semis is the standard 131.wild4679 wrote: ↑July 31st, 2018, 10:21 pmThanks for the advice, gentlemen. I'm assuming that in the era of the Model A's and mechanical brakes, semi trailers simply did not have brake axles. Is this a fair assumption?
Also, when choosing a chassis to build a log truck project (or any truck with a fifth wheel to pull a semi-trailer), would you choose a 131.5 inch wheelbase or a 157 inch?
Also this site would be a great rescource for all that legality stuff and trailer brake questions id imagine as well
https://aths.org/