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  #1  
Old 22-05-17, 23:43
Jacques Reed Jacques Reed is offline
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Default F15A floor

[QUOTE
The cab floor may also give help. do the openings for transfer case shift lever look factory or "gas-axe" made?[/QUOTE]

Hi Luke,

As Grant said there are a lot of pointers to a gun tractor chassis and the floorboard would be a good indicator if it was an original F15A with the single speed xfer case.
As shown on the attached photo the F-15A floor has just a single notch beside the fuel tank selector valve for the transfer case selector lever and no hole in the floor to the left of the valve where the two speed lever would be. If you have a slot, and a hole, for the two levers it definitely was a "gas axe" job.

I had an F-15A with a two speed xfer case and 20" wheels but that was not an uncommon civilian mod. The holes on the crossmember where the transfer case attaches to it were also elongated to fit the larger 2 spd xfer case mounting pattern which is another giveaway that it was originally an F-15A chassis. Another indicator would be the diff markings. An F-15A has the ratio "6-39" (pinion-crown gear teeth) stamped on the diff housing opposite the pinions of the diffs and vehicles with original 20" wheels have "6-43" stamped at that position, 6-5:1 versus 7.16:1 ratios.

There a few a few gun tractor specialists on the forum who no doubt can shed more light on it. I'm hoping it is a gun tractor.

Cheers,
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  #2  
Old 23-05-17, 06:45
Mike Cecil Mike Cecil is offline
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Default Chassis Number the key.

What's the chassis number? (top of right hand chassis member, adjacent to the engine mount cross member)

That should simplify matters. The Aust gun tractors are easy enough to locate in AWM126 (now online).

Start trawling, Luke!!

Mike
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  #3  
Old 23-05-17, 09:10
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aj.lec aj.lec is offline
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Default

Is there a ammo box mounted in the passenger side of nose cone ?
Any evidence of a mount on passenger side wheel arch inside ?
Engine chassis number sometimes found on bellhousing of gearbox at the top as well (If it is original gearbox )
Australian Gun tractor don't have the helper springs but easily added on later
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Old 23-05-17, 13:38
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Keith Webb Keith Webb is offline
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Default Fgt

The double rear cross member and fairleads marks this as a winch equipped (=FGT) chassis.

As Mike suggested find the chassis number!
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42 FGT No8 (Aust) remains
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42 F15
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  #5  
Old 25-05-17, 12:44
Luke R Luke R is offline
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Default Fgt

Thanks for all the info guys.
I've come up with conclusion that it started life a FGT then sometime after/during the crane conversion the cab and diffs have been replaced.
There is no sign of a number on the top of the chassis and the side is plated over so ill have to do some cutting/grinding when I get time to see if I have any numbers on the vertical side.

Cheers again
Luke
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  #6  
Old 25-05-17, 16:59
Mike Cecil Mike Cecil is offline
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Luke,

The Aust Ford CMPs assembled and stamped with their chassis number/engine number locally, have the stamping as previously indicated, so you won't find it stamped on the vertical of the chassis rail. The FGTs certainly fall into this group.

The number is often quite lightly stamped, so some judicious use of wet & dry might show it up. It will be something like the format '3GXXXXF' or similar.

Once you locate the chassis number, I'm pretty sure Keith or I can narrow down an ARN pretty quickly.

Mike
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Old 25-05-17, 22:43
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Keith Webb Keith Webb is offline
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Default Chassis number location

The usual place is adjacent to the RH engine mount but I have also seen the number stamped on the RH vertical face adjacent to the bolts holding the starter solenoid.
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42 FGT No8 (Aust) remains
42 FGT No9 (Aust)
42 F15
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