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transmission &transfercases

Discussion in 'Chevy Trucks' started by mycave, Feb 10, 2000.

  1. mycave

    mycave Junior Member
    Messages: 17

    I am looking for a TH 400 trany & a NP 205 t-case does any one know of a place arround springfield il. or a web sight, any info will help rebuilt our used.
     
  2. Doug406

    Doug406 Member
    Messages: 65

    How much are you willing to spend?/ I have a 205 and Fresh rebuilt th350, and all the driveshafts ( both brand new) for a longbox with dana 44 and 14 bolt setup.
     
  3. Abe

    Abe Member
    Messages: 49

    talk to the guys at aamco transmission, i just bought a th400 tranney with lifetime warranty, without a core for 800.00, the np 205, i believe it was either 4 wheeler magazine or petersons that had an article on how to tell the difference last month, i would start scavaging the old parts yards in kentucky, might be a little drive, but there are a lot of treasures in those yards!!!<p>-abe<br>
     
  4. Abe

    Abe Member
    Messages: 49

    i found the magazine that addresses the np 205 recognition, it is the March 2000 issue of 4x4power pgs 44-49<p>-abe<br>
     
  5. mycave

    mycave Junior Member
    Messages: 17

    Thank for finding the artical Abe. Looks like I need to plan a road trip
     
  6. Abe

    Abe Member
    Messages: 49

    here might be a little more help for you if you plan to scavenge the parts yards.<p>check out chucks chevy pages, also If the rig had full time 4x4 it is a np203 if it is a chevy 70's model with man trans odds are it is a 205 auto trans odds are it is a 203. Anyway.......you might find additional help as far as identifying a donor vehicle specs by visiting chucks website<p>-abe<br>
     
  7. Abe

    Abe Member
    Messages: 49

    here might be a little more help for you if you plan to scavenge the parts yards.<p>check out chucks chevy pages, also If the rig had full time 4x4 it is a np203 if it is a chevy 70's model with man trans odds are it is a 205 auto trans odds are it is a 203. Anyway.......you might find additional help as far as identifying a donor vehicle specs by visiting chucks website<p>-abe<br>
     
  8. jim

    jim Junior Member
    Messages: 2

    an easy way to i.d. the 205 is by the shifter rod sticking thru the floor. the 205has a round rod coming out of the floor topped by whtever handle the previous owner chose to install. it is the only t-case with a round handle<p>----------<br>big Jim<br>
     
  9. jim

    jim Junior Member
    Messages: 2

    i forgot .look for a case with a bracket bolted on the passenger side that bolts to the frame. my first case didnt have that ,after breaking 2 adapters(?)and 1 transmission in half i realized the bracket was a necessity for survival under less than perfect conditions<p>----------<br>big Jim<br>
     
  10. ChucksChevyPages

    ChucksChevyPages Guest
    Messages: 0

    The NP 205 has a drain plug on the back. The NP 203, has no drain plug. There is a photo of each case, on my web pages, under the &quot;Parts Identification&quot; heading.<p>~Chuck<br><p>----------<br>Chuck's Chevy Truck Pages - Snowplowing Central<br>http://members.aol.com/csmith669/plowcentral.html
     
  11. RON PRIES

    RON PRIES Junior Member
    Messages: 12

    You can pick up the 205 manual version and convert it to a turbo 400.<br>You need to go to your local GM dealer and have him look up 1981 1 ton 205, and order front input cluster, bearing and snap ring, adapter plate, then take transfercase apart and have machine shop cut the case to accept the input bearing and reassemble. Go a head and buy all gaskets and seals we have done several of these on are GMs got tired of shifting.<br>the bolt holes on the side of the 205 DOES NOT BOLT TO THE FRAME, But to a plate under the motor mount think about it if you bolted it to the frame you would make it rigid.
     
  12. plowking35

    plowking35 2000 Club Member
    from SE CT
    Messages: 2,923

    I have the adapter for between the 205 and a 400. The 205 used a bolt on yoke, not a slip yoke like on the 208. The 205 did have a plate from the t case to the frame but GM stopped using it in the late 70's early 80's<br>I had a 73 with a 205 that had that plate.<br>You should be fine to run the truck with out that bracket.<br>My 86 k-3500 with a 400 and 205 didnt have that plate,I plowed 5 years with the truck and never had a problem.<br>Dino<p>----------<br> Professional Ice and Snow Management <br>Products:Services:Equipment www.sima.org
     
  13. mycave

    mycave Junior Member
    Messages: 17

    Hey guys thanks for all the info I think I will stay with my 700r4 and have it built And adapt the 205 to it
     
  14. RON PRIES

    RON PRIES Junior Member
    Messages: 12

    Mycave:<br>I don't know where you got that idea but I wouln't use that trans if you plan on working this truck in any way!<br>I don't know if they will adapt.<br>I never even investigated this because I would never consider using the 700R-4.
     
  15. Bill c

    Bill c PlowSite.com Veteran
    from ny
    Messages: 85

    Snowman the 700 r4 is a great transmission if you have it built with all the updates.
     
  16. MTCK

    MTCK Senior Member
    Messages: 346

    My 700r4 workes great, after having a performance build done on it for towing. Something to consider though, is that these transmissions are famous for running hot. Get the biggest cooler you can for it, a temp gauge, and watch it. It's well worth the money you'll save.
     
  17. Bill c

    Bill c PlowSite.com Veteran
    from ny
    Messages: 85

    Having the tv cable adjusted correctly is also critical on these trannys