I did a search, including: https://forum.ih8mud.com/showthread.php?t=59403&page=2&highlight=aisin (where I think my question was already answered) and https://forum.ih8mud.com/showthread.php?t=63304&highlight=aisin . These two seemed helpful, but I want to make absolutely sure this will work: I have a '78 (June 1978) front axle that I put Longfield's in. If I order an "OEM Hub Assembly 1/79-1/90 (http://www.sor.com/clubsor/products2.tam?xax=13150&category.ctx=080-86&page#.ctx=080 part 080-86B) can I bolt this right on to my rig? I want to get brand new units, even if it means the bunches of $$ (or I may ge the Marlin Crawler rebuilt units) One of the posts mentioned grinding things, is there something I would have to grind, or do the Longfileds make the birf the correct length for a bolt-on Aisin??? Thanks.