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Gravely Model with a ser# J7122


 
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jturn36178
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PostPosted: Wed Aug 22, 2018 7:07 am    Post subject: Gravely Model with a ser# J7122 Reply to specific post Reply with quote

All,
This is only tag I find. It is on the differental/trans. What year and model is correct for this?
Thanks Jim
 
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TomIn
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PostPosted: Thu Aug 23, 2018 2:23 am    Post subject: Re: Gravely Model with a ser# J7122 Reply to specific post Reply with quote

Gravely serial numbers are a bit of a mystery. You can get some insight by doing a Google search. One example is:

http://www.gravelyyard.com/gravely_placed_serial_numbersl.htm

Everything I can find shows that serial numbers beginning with the letter "J" began in 1967 with serial number J7600. Prior to that time, serial numbers were located on a tag that was attached above the gas tank. The location was moved to the left side of the transmission case when the "C" series of two wheel tractors was introduced. The "C" series used a 7.6 h.p. Gravely engine and was available with a regular, S (slow), I (Intermediate speed) or multi speed transmission. The serial numbers indicated the year of manufacture, but not the specific "model".


Soon afterwards the Commercial series was introduced. It used the same transmissions but had Kohler engines.

Many parts were interchangeable in the 1950's, 1960's, and 1970's. The serial number may indicate when the entire tractor was manufactured or only when the serial number tag was manufactured.
 
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t1
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PostPosted: Sun Aug 26, 2018 7:28 am    Post subject: Re: Gravely Model with a ser# J7122 Reply to specific post Reply with quote

Trouble with Gravelys and seraial number is, so many parts are interchangeable, and they were made for so many years, that you never know if you have everything the same as when it left the factory or not. unless you bought it new and owned it the entire time. You could make an LS into an LI by simply changing the gears inside. You could upgrade the old low volumne oilk pumps with the newer upgraded higher volume oil pumps. If it didn't have a filter (many very early ones didn't), you could add it and the necessary oil lines. The old cartridge filter could be replaced with the upgraded spin on type. If you didn't have the swiftamatic axle, you could get the parts and add it. If you didn't have a governor, you could buy and add it. Electric start was also able to be added. The fuel tanks and every other part of the machine is replaceable, and they get swapped around with used parts from salvage machines all the time. You just never know for sure if anything on one is original these days. They were easy to maintain and repair, parts were interchangeable.

Most internal parts didn't change drastically over the years, other than original weaker parts would be upgraded to new improved better built parts as needed. Search Gravely tractor club of america, they have every manual and a ton of informtation how to figure out what you have on there website.
 
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jturn36178
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PostPosted: Mon Sep 10, 2018 10:09 am    Post subject: Re: Gravely Model with a ser# J7122 Reply to specific post Reply with quote

Thank to all who commented.
I appreciate the insight.
I will keep the old girl running if at all possible.
God Bless.
Jim
 
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