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Old 10-17-2019, 09:01 PM   #5
holdover
Senior Member
 
Join Date: May 2011
Location: SW Virginia near the Blue ridge Parkway
Posts: 674
Default Re: Model AA High Speed Rear Axel

There is a world of difference between the rear axle for a '29 pickup and a '30-31 AA rear axle. The '29 and spring arrangement is functionally the same as a standard Model A, the AA rear has side mounted springs that look like they can support the space shuttle, and overall a bigger build to carry the rated loads.
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