Ford NAA vs. Ford 600 series

Corey148 · Dec 13, 2011

How much difference is there actually between the Ford NAA and the Ford 600 series. They appear to be fairly similar in feature. Is the one any better than the other.??

oldtanker · Dec 13, 2011

Look em both up on external_link.

Rick

Dean · Dec 13, 2011

The engine, front axle and sheetmetal are nearly the same.

The 6xx rear axle assembly is improved as are the brakes.

The 66x versions were five speeds with live PTO.

Dean

Ultradog MN · Dec 13, 2011

Though they share the same tin and ohv 134ci engine the 600 is a superior tractor. NAA/Jubilee is sort of a hybred between the 8N and the 600 and many parts are peculiar to the NAAs only. The 600 and later tractors have a piston pump where the naa has a vane pump and parts are scarce for those. 600 used a remote valve under the seat that was interchangeable with all the smaller fords from 1955 through 1982 at least.
Remote valve for an naa was available but very hard to find today. Naa used the same rear axle as the 8N with the splined axle and outer hub. Prone to wear and outer axle seal failure causing oily brakes. 1955 600 and it's sisters through 1964 was improved.
55 and later had more transmission choices - 4 sp, 5 sp and 5 sp/w lpto. And 600/800 could be ordered with power steering where the Jube could not.

old · Dec 13, 2011

Big improvement when they went to the 600/601 series and made the rear end a good bit heavier and also improved the hyds with the piston pump over the vane pump. Ya some of the early 600s had the vane pump also and do not remember just when they switch to the piston pump but it was a big improvement when they did. Was not uncommon to have the rear axle brake on the Jubilee/NAA

Ford NAA vs. Ford 600 series

Corey148

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oldtanker

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Dean

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Ultradog MN

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old

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