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Subject: 8N-804 VS NCA-804-A

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Doug Siperly    Posted 11-20-2018 at 20:12:52 [URL] [DELETE]        [Reply] [Email]  
  • 8N-804 VS NCA-804-A
  • Any body know the difference between the two of these? They both have the same application, 8N thru 900 in my parts book(mid 50s) The ones I have are .875 Dia. by 2.562 long is there a length difference? Thanks, Doug

    Tim Daley(MI)    Posted 11-21-2018 at 07:19:39 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 8N-804 VS NCA-804-A
  • HiYa Doug-
    I'm just spitballin' here, but will dig out my Hundred Series MPC's and verify to be sure, then get back. I would say the 8N-804 pin was used on the 8N-802 Clevis Bracket. The NCA-804 pin would have come with the later modified clevis bracket and drawbar setup. They were two different animals, with the Hundred Series clevis and swinging drawbar being a better design. Here's why I say that. Every 8N and NAA came with the 8N-802 Clevis Bracket only on a new tractor. The Dearborn Swinging Drawbar used with it was a dealer optional accessory. There were at least three versions of the 8N bracket, having used a riveted unit, a welded assembly, and a stamped steel unit, with some variation of these in sequence. The 8N/NAA setup used the OEM 11-Hole Drawbar and Stay Bars with SAFETY WARNING BADGE/Check Chain assembly, all included in a parts shipping kit with each new tractor, and the optional Dearborn Swinging Drawbar see picture below. Now, with this setup, you cannot keep the swinging drawbar pinned in the clevis and then be able to use the 3-PT lift. When the 800 Models were introduced, Ford had revamped the clevis and drawbar design. It used a new clevis bracket & pin, a bracket that bolted to rear diffy case at the PTO, and a new drawbar. The original rear bracket was a riveted design, later changed to a welded assembly. This setup was a much improved design, and allowed the drawbar to be pinned in place when one desired to hitch an implement and use the 3-pt lift. For most implements, there is no need to remove the swinging drawbar. This is the setup that is sold today as an aftermarket kit. Still, many desire an OEM Dearborn Swinging Drawbar for their Ns and they pop up often. There is also CAD drawing in the NTC How-Tos for those with machining capabilities and a plasma cutter or CNC Mill. I will locate my MPC and delve deeper but I would surmise this to be the part differences.

    FORD 8N & DEARBORN SWINGING DRAWBAR SETUP:

    Tim Daley(MI)

    Tim Daley(MI)    Posted 11-21-2018 at 16:28:05 [URL] [DELETE]        [Reply] [No Email]  
  • CONFIRMATION
  • My hunch was correct. The part prefix code, 'NCA' was the clue that the part was for a different module. Here is a page from the February, 1958 MPC with the description and diagram of the revamped swinging drawbar. Part kit components are: NCA-805-B, Drawbar; NCA-809-A, Hanger; NCA-802-B, Clevis; NCA-804-A, Pin. Note that parts are listed for '53- '58 tractors because this assembly will fit those models and supersedes prior modules. Also, this MPC states tricycle tractors and High Clearance models used some slightly different parts.

    FORD TRACTOR 1953-1958 MPC, SWINGING DRAWBAR:

    Tim Daley(MI)

    Tim Daley(MI)    Posted 11-21-2018 at 18:10:23 [URL] [DELETE]        [Reply] [No Email]  
  • OEM HANGER
  • Here is a picture of the OEM FORD NCA-809-A Drawbar Hanger. Note the originals were of a riveted construction. Later units were welded assemblies. Todays' aftermarket kits are all welded construction.


    Tim Daley(MI)

    Tim Daley(MI)    Posted 11-21-2018 at 18:17:57 [URL] [DELETE]        [Reply] [No Email]  
  • AFTERMARKET KIT
  • Here is the LINK to JUST8Ns with their 55-58 kit. They also have a 48-55 kit as well.

    TPD

    Doug Siperly    Posted 11-21-2018 at 18:01:19 [URL] [DELETE]        [Reply] [Email]  
  • Re: CONFIRMATION
  • Nice! all good info on this. more mysteries solved! I have more to come though! Doug

    Randy(PA)    Posted 11-20-2018 at 22:33:15 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 8N-804 VS NCA-804-A
  • The drawing for 8N-804 says it is 1.12 dia and overall length is 3.56.

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