thomastractorsvc Posted August 7, 2015 Share Posted August 7, 2015 Any one know the diffrence between the mack FA500 and the FA505?Reason asking the better of the two A model trucks hubs were missing and a set from a B were stuck on it 10.00x20 I want to keep the smaller tire if possible the parts truck has 12.00 x 22 hoping the hubs would be the same Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/41269-axle-experts-question/ Share on other sites More sharing options...
thomastractorsvc Posted August 9, 2015 Author Share Posted August 9, 2015 No experts????? Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/41269-axle-experts-question/#findComment-299488 Share on other sites More sharing options...
mrsmackpaul Posted August 9, 2015 Share Posted August 9, 2015 frayed knot Quote Link to comment https://www.bigmacktrucks.com/topic/41269-axle-experts-question/#findComment-299496 Share on other sites More sharing options...
j hancock Posted August 11, 2015 Share Posted August 11, 2015 I have a little (very little) on the 505 and nothing on the 500. Might have to open it up and start comparing bearing sizes to see what you can do. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/41269-axle-experts-question/#findComment-299748 Share on other sites More sharing options...
41chevy Posted August 11, 2015 Share Posted August 11, 2015 All I have on the FA500 is it is an 8000lb axle. Here is a little info on the FA505 hope it helps. Paulhttp://www.tyldenheritage.com.au/uploads/9/3/0/6/9306704/fa505.pdf Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment https://www.bigmacktrucks.com/topic/41269-axle-experts-question/#findComment-299769 Share on other sites More sharing options...
Superdog Posted August 11, 2015 Share Posted August 11, 2015 I've got a front axle from a A50 with 20" hubs,I would guess they are the same as the A54. Quote Link to comment https://www.bigmacktrucks.com/topic/41269-axle-experts-question/#findComment-299775 Share on other sites More sharing options...
thomastractorsvc Posted August 12, 2015 Author Share Posted August 12, 2015 I have not torn into it yet I am hoping that with some new races and bearings I can fit the B hubs on or I guess I will becoming to see you Mike for the smaller hubs. The 22 make the truck really tall and Jackie likes the shorter stance. So far I think I have everything to get it running and I plan on a Chevy drive train ( 292 and a 4 or 5 speed) if the motors are shot. Thought about maybe using the engine from the F but I think it would be way to heavy on that little frame. Quote Robert"I reject your reality and substitute my own." Link to comment https://www.bigmacktrucks.com/topic/41269-axle-experts-question/#findComment-299814 Share on other sites More sharing options...
Superdog Posted August 12, 2015 Share Posted August 12, 2015 Worst part about using those B model hubs is you won't be able to use the chrome Mack hub caps. I think those hubs are from a 507 axle.,I have a 505 out of a B model if the A50 axle wont work. Don't gut out the F model. Quote Link to comment https://www.bigmacktrucks.com/topic/41269-axle-experts-question/#findComment-299901 Share on other sites More sharing options...
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