F1 steering box question

What changed what years on these , I have a 49 box and need parts , when did they change ? I have a 56 box and noticed the shaft is splined where the wheel mounts, while the 49 is tapered and keyed. Are the gears the same on the later ones?

 

I'm using a '51 F1 box and steering shaft. It's got a splined end. I needed a tapered and keyed type as I'm going to run a 40 steering wheel. I cut off a piece of shaft to graft from a 46-7 P/U .Are you sure the one you have is a '49? I thought all the F1 boxes (49-52)were the same.

Don

 

you are totally right I just went out and looked at it it IS splined , crap , now I have to change it too to fit my 40 wheel.

 

so 49 - 52 is the F1 , did they call the 53 and later F100 ?

 

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so 49 - 52 is the F1 , did they call the 53 and later F100 ?

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Yes

 

48 is an f-1 too

 

[ QUOTE ]
so 49 - 52 is the F1 , did they call the 53 and later F100 ?

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No, '48 to '52 is the F1. I believe '48 -'56 used the same Gemmer 3 steering box. Not sure how late they were used...