I don"t know with what size tires/wheels that 7.7 MPH rating was for but it must have been with the 40" steel wheels. I have a "39 with cast wheels and 36" tires (factory fast fourth gear)and it is MUCH faster than 8 MPH at wide open throttle. I have never clocked it but I would guess 12-15 MPH at least. It can also depend on what size 36" tires are on it. IIRC mine has 10-36 (12.4-36) which would be a lot taller than than an 8-36 or a 9-36.
I know that 2 gears changed position with the fast fourth, but I can"t remember which two at the moment.
The right hand brake was an optional attachment from IH, but there may have been aftermarket ones available too.
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Today's Featured Article - Tractor Traction - by Chris Pratt. Our first bout with traction problems came when cultivatin with our Massey-Harris Pony. Up till then, this tractor had been running a corn grinder and pulling a trailer. It had new unfilled rear tires and no wheel weights. The garden was already sprouting when we hooked up the mid-mount shovel cultivators to the Pony. The seed bed was soft enough that the rear end would spin and slowly work its way to the downhill side of the gardens slight incline. From this, we learned our lesson sinc
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