midnite2336 Posted August 13, 2018 Share Posted August 13, 2018 Link to comment Share on other sites More sharing options...
nzcarnerd Posted August 13, 2018 Share Posted August 13, 2018 I have no idea what it is but some dimensions might help. Is that four inch timber on the top of the horses? The style of the cover for the out put drive must be a clue. Link to comment Share on other sites More sharing options...
viv w Posted August 13, 2018 Share Posted August 13, 2018 Pretty sure that will be an accessory two-speed for a Ford AA truck. Link to comment Share on other sites More sharing options...
oldford Posted August 14, 2018 Share Posted August 14, 2018 The 'hi' was straight through and the 'lo' was underdrive and used for the Model AA trucks. If you had the 7:1 rear and put it in 'lo', you could move a house... Frank Link to comment Share on other sites More sharing options...
Bloo Posted August 14, 2018 Share Posted August 14, 2018 Look at THIS. Link to comment Share on other sites More sharing options...
midnite2336 Posted August 18, 2018 Author Share Posted August 18, 2018 Thanks for all of you for identifying this unit. I can not use it as I have a '28 AA which is worm drive. I hope someone who wants it buys it. Link to comment Share on other sites More sharing options...
oldford Posted August 18, 2018 Share Posted August 18, 2018 If you have the 5:1 rear in your AA, like I have in mine, and you needed lower gears, you could put a Dual High box between the transmission and the rear universal. You may have an intermediate shaft there now. The Dual High would replace the intermediate shaft. PM me if you need one... Frank Link to comment Share on other sites More sharing options...
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