Register now to get rid of these ads!

30-31 AA axle upgrades--Ideas?

Discussion in 'The Hokey Ass Message Board' started by 28hiboy, Sep 20, 2010.

  1. 28hiboy
    Joined: Feb 2, 2007
    Posts: 397

    28hiboy
    Member
    from milton fl

    A friend has just gotten a 31 AA truck and wants to upgrade the running gear, yet keep the stock flavor such as the 20in Budd rims. This is going to be a working AA truck and has to support the larger weight. Was wondering if say 48-54 or 55 F4 or F5 parts can be swapped out. Did a thread search (20 pages) and found nothing of use. Any ideas on what to use and what works would be of great help in this project. Also looking for steering ideas, as would like to keep the cab kind of stock with a floor shift trannie. If anyone knows, its the HAMB! Thanks
     
  2. 28hiboy
    Joined: Feb 2, 2007
    Posts: 397

    28hiboy
    Member
    from milton fl

    BBT Really looking for ideas or leads. Thanks in advance!
     
  3. modeleh
    Joined: Oct 29, 2009
    Posts: 380

    modeleh
    Member

    I have 2 AAs, there's not much you can do in the way of more modern parts if you want to keep the Budd wheels, the wheels are unique to the 30-33 model years, maybe 34, but I think it may have been different again. There are guys out there who have backyard engineered hydraulic wheel cylinders to the stock backing plates, but I don't think it's worth the hassle, my stock mechanical brakes do a good job of stopping my truck, so I'd never consider any type of conversion. You might consider keeping both axles if you're dead set on the Budd wheel look (which I really like about these trucks too), and spend some effort getting the torque tube converted to open drive shaft so you can run a more modern engine and transmission. If you have the high speed rear it will be 5.14 gears, and with 6.50x20s you will be doing highway speeds if you can get an engine to pull 2500 rpms or more. One thing I can say, is that if you want to go much faster than 50 mph, it is really hard to get smooth running wheels and tires. These things shake pretty bad when you get them going, or at least mine does.
     
    Last edited: Sep 21, 2010

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2020 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.