AA high-speed differential

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Mike Hartmann
Posts: 2
Joined: June 11th, 2012, 2:36 pm
Body Type: Closed Cab
Model Year: 1930

AA high-speed differential

Post by Mike Hartmann » June 12th, 2012, 10:20 am

This is a notice to all who have an AA truck.
For the past years that I have been reproducing the TT 5:17.1 high speed gear sets, and have been selling the bronze gear to those who needed a replacement for their AA, everyone who I have been in contact with asked me if I have the hardened steel worms for the AA.
Well I now have them available, I am in full production of the TT, and AA, worm drive gear sets.
For all who are interested in a set just forward me back.
I have been selling these as fast as I can make them right now, and will stay in production of these for the next few months.
As long as there is a demand, There wasn’t enough time to get the word out in the AA newsletter, so I am putting the word out this way.
So if you are in need of one or, know of someone who was looking for a set, now is the time to order up because I will not be able to stay tooled up very long on these.
Regard,
Mike L Hartmann
President
MMS Futurecraft dynamics Inc.
Phone: (479) 489-5815
Fax: (479) 489-3815
Email: machshop@arkwest.com
Web: http://www.mmsfuturecraftdynamics.com/

One and only reproducer of the TT ton truck
famous High speed 5:17.1 worm drive gearing
Made in Ola, Ark. USA
Lets keep um going...

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Neil Wilson
Posts: 2610
Joined: February 5th, 2003, 9:42 pm
Body Type: 82-A/89-A
Model Year: 1930
Location: Boulder, CO
Contact:

Re: AA high-speed differential

Post by Neil Wilson » June 12th, 2012, 10:50 am

Please post the cost. Cost of worm, cost of worm gear (some call it a ring gear), and cost of the set.
Regards, Neil Wilson
______________________________________
neil@aafords.com - use this email for contact
www.aafords.com - AA information and photographs

Mike Hartmann
Posts: 2
Joined: June 11th, 2012, 2:36 pm
Body Type: Closed Cab
Model Year: 1930

Re: AA high-speed differential

Post by Mike Hartmann » June 12th, 2012, 12:45 pm

I am posting the photo add brochure of the TT worm and ring set, as I have not had enough time to take photos of the AA steel worm with the ring.
The cost of the bronze gear alone is 690.00 + shipping, complete set is 1380.00 + shipping.
See attached brochure.
Regards,
Mike L Hartmann
President
MMS Futurecraft dynamics Inc.
Phone: (479) 489-5815
Fax: (479) 489-3815
Email: machshop@arkwest.com
Web: http://www.mmsfuturecraftdynamics.com/

One and only reproducer of the TT ton truck
famous High speed 5:17.1 worm drive gearing
Made in Ola, Ark. USA
Lets keep um going...
Attachments
Model AA High speed 5.17.1 ring and worm gear set.jpg
Model AA High speed 5.17.1 ring and worm gear set.jpg (66.36 KiB) Viewed 2415 times

spdway1

Re: AA high-speed differential

Post by spdway1 » June 12th, 2012, 4:31 pm

What is the difference in Speed?

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Neil Wilson
Posts: 2610
Joined: February 5th, 2003, 9:42 pm
Body Type: 82-A/89-A
Model Year: 1930
Location: Boulder, CO
Contact:

Re: AA high-speed differential

Post by Neil Wilson » June 12th, 2012, 7:00 pm

The TT and AA worm drive axle both used 7.25:1 or 5.17:1 gears. The 7.25:1 gears will yield about 25mph (probably a little less). The 5.17:1 gears will cruse at 40mph. My AA will do 45mph if I push the engine.
Regards, Neil Wilson
______________________________________
neil@aafords.com - use this email for contact
www.aafords.com - AA information and photographs

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TruckMan
Posts: 132
Joined: March 10th, 2009, 10:36 am
Body Type: Garwood Dump
Model Year: 1928
Location: Wisconsin

Re: AA high-speed differential

Post by TruckMan » June 21st, 2012, 10:43 am

For what its worth, I have the "B" stamped 5:17 Diff.

I can cruise along at 40-42 empty. In my case, my dump box weighs 1190Lbs empty plus the hoist. A flat bed would be lighter. It is nice to go 35 in town without issue.

Of course, I always say that when I'm in my truck I am already where I want to be, so what's the rush?
TruckMan

User avatar
Neil Wilson
Posts: 2610
Joined: February 5th, 2003, 9:42 pm
Body Type: 82-A/89-A
Model Year: 1930
Location: Boulder, CO
Contact:

Re: AA Worm Drive Gears

Post by Neil Wilson » February 24th, 2018, 12:29 pm

FYI - I sent an email to Mike Hartmann to find out if he is still making the AA worm drive high-speed gears:
Neil,
I will make more when I can, but right now this is on hold till I have more open time in my shop.
Sorry for the delay.

Mike L Hartmann
President
MMS Futurecraft dynamics Inc.
Phone: (479) 489-5815
Fax: (479) 489-3815
Email: machshop@arkwest.com
Web: http://www.mmsfuturecraftdynamics.com/
Note that the website does not currently open.
Regards, Neil Wilson
______________________________________
neil@aafords.com - use this email for contact
www.aafords.com - AA information and photographs

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