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GM NV3500 5 Speed

Discussion in 'The Hokey Ass Message Board' started by 48FordFanatic, Jan 12, 2012.

  1. 48FordFanatic
    Joined: Feb 26, 2011
    Posts: 1,335

    48FordFanatic
    Member
    from Maine

    Has anyone used the NV3500 behind a SBC in a hot rod ? Are they strong enough for a mild 350 ?
     
  2. clifforddean
    Joined: Mar 3, 2009
    Posts: 101

    clifforddean
    Member

    I've never seen anybody running 3500 in hot rod, but plenty in 4X4. They're usually found in Chevy and I believe dodge 1 ton trucks. Plenty strong enough might want to check into gear ratios though.
     
  3. clifforddean
    Joined: Mar 3, 2009
    Posts: 101

    clifforddean
    Member

    Maybe not in 1 tons. Half tons and 3/4. Still check out ratios.
     
  4. metlmunchr
    Joined: Jan 16, 2010
    Posts: 862

    metlmunchr
    Member

    We've got 2 late 90's Dodge half ton pickups with V-8 (360 maybe??) and the NV3500 trans. Both have over 100K "contractor" miles on them with zero tranny problems. 100 thou contractor miles is equal to about 300 thou normal person miles, so I'd say they're pretty damn reliable.
     

  5. silver top
    Joined: Jan 8, 2011
    Posts: 15

    silver top
    Member

    The problem with that transmission in a hot rod is it's size, they are very bulky (diameter). Usually not a lot of room in that small frame.
     
  6. HEATHEN
    Joined: Nov 22, 2005
    Posts: 8,593

    HEATHEN
    Member
    from SIDNEY, NY

    Chevy used NV3500s behind 4.3 V6s in S-10s. I own two 4.3/NV3500 trucks, one with 214,000 miles on it and one with 312,000. Both transmissions still shifting smooth.
     
    X-cpe likes this.
  7. Ebbsspeed
    Joined: Nov 11, 2005
    Posts: 6,257

    Ebbsspeed
    ALLIANCE MEMBER

    They're really not much bigger that a traditional Muncie or BW T-10 4-speed, plus they don't have all that linkage hanging off the side. And most of them are set up for a hydraulic clutch, so even less linkage to deal with. Overall, a 3500 might actually take less room.
     
    banjeaux bob likes this.
  8. Xtrom
    Joined: Mar 23, 2010
    Posts: 1,029

    Xtrom
    ALLIANCE MEMBER
    from Forman, ND

    I'm going to put one behind my stock 350 in a 55 Chevy half ton. I think they used the 3500 in all the half tons whether it be a small block or V6 starting in the late 80's. 3/4 and 1 tons use the indestructable nv4500 that all the off roaders look for. I think it should work fine. Pretty steep first gear if I remember correctly. No aftermarket support as far as replacement parts or better shifters that I know of.
     
  9. HEATHEN
    Joined: Nov 22, 2005
    Posts: 8,593

    HEATHEN
    Member
    from SIDNEY, NY


    Hurst did make a shifter for them; I don't know if they still do.
     
  10. mustangsix
    Joined: Mar 7, 2005
    Posts: 1,409

    mustangsix
    Member

    I have one that I'm going to use in a future project. Size is good; no bigger than a T5 or TKO. It's about the same length as one of my T350's. The bell is integral and they use a hydraulic throwout bearing.

    The S10 4.3 V6 version has a better gear set (3.49 first). The shifter is further back, though, right on the tailshaft. Also, they all seem to have an electronic speed output.

    I haven't found a torque rating, but the consensus seems to be that they are stronger than a T5.

    There's also an early Getrag transmission that is not as strong and full of obsolete parts that is also called an NV, so be sure of what you're looking at.
     
  11. 48FordFanatic
    Joined: Feb 26, 2011
    Posts: 1,335

    48FordFanatic
    Member
    from Maine

    Yes they were used in the GM 1500 and 2500 series pickups as well as Dodge and JEEP. I don't have a small hot rod ...I have a 48 Ford coupe with a SBC and 700R4. I'm toying with the idea of converting to a manual transmission and thought the NV3500 might be a good option. I doubt if its much bigger, if at all, than the 700R4 and it might actually be the same overall length which would make life easier. Looks like the close ratio one has a 3.49 1st gear . The 700R4 has a 3.06 1st gear. Anyway, thanks for the input. John
     
    Last edited: Jan 13, 2012
  12. Is the NV3500 a 5-spd OD trans?
     
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  13. HEATHEN
    Joined: Nov 22, 2005
    Posts: 8,593

    HEATHEN
    Member
    from SIDNEY, NY

    Yes. It replaced the T-5 in V6 powered S-10s, and was also used in the full size trucks. The bell housing is part of the casting, rather than being detatchable.
     
  14. Thanks Heathen. I find myself trying to figure out options for my '58. I've got a TH350 in it right now but I have always liked banging gears. If I do go to a manual trans I would like to go with something with a 5 spd OD so I can cruise a little better on the highway. I'm just trying to learn about what is out there and what might work, and whether this trans could be an option.

    What year S-10s did this come in? What about the bolt pattern on the bell housing? Same as SBC?

    Sorry, OP. Not trying to take over your thread.
     
  15. CWTC10
    Joined: Jul 8, 2009
    Posts: 239

    CWTC10
    Member
    from Arab Al

    [​IMG]
    This car has one in it. Been beatin hell out of it for 4-5 years with no problems. It does great. Its behind a 355 with a small cam.
     
  16. 42hotrod
    Joined: Nov 3, 2005
    Posts: 811

    42hotrod
    Member
    from S.E. Idaho

    For a traditional look they are pretty damn cool because they are top loading, so no side shifter linkage and the shifter will sit in the middle of the trans up top like an early ford instead of off to the side of the trans with external linkage. All in all a pretty decent tranny.


    Scot
     
  17. toreadorxlt
    Joined: Feb 27, 2008
    Posts: 733

    toreadorxlt
    Member
    from Nashua, NH

    I am, it's big... but totally workable. And you can get them for $200 everywhere. Shifter placement is a bit forward, but again, workable for a coupe.

    [​IMG]

    Bolts up to a SBC, needs a 168 tooth flywheel and a clutch kit from a "1998 C1500 2WD 4.3L" if it has a hydraulic throwout.... Earlier versions had a Slave Cylinder, and you can run the clutch and flywheel from a "1988 C1500 2WD 4.3L"
     
  18. Good info. Thanks Toreadorxlt.
     
  19. junk yard kid
    Joined: Nov 11, 2007
    Posts: 2,717

    junk yard kid
    Member

    I got one i put in a 53 ford, i just pulled it out yesterday and its in my truck. I couldnt find a cheep and easy way for the throwout bearing to work.
     
  20. toreadorxlt
    Joined: Feb 27, 2008
    Posts: 733

    toreadorxlt
    Member
    from Nashua, NH

    late model GTO throwout bearing has a traditional style fitting instead of the push lock, and its the same size.
     
  21. 48FordFanatic
    Joined: Feb 26, 2011
    Posts: 1,335

    48FordFanatic
    Member
    from Maine

    No problem. I believe as long as the S10 is a 4.3 you're ok. By the way , I priced one today from a company that specializes in dismantling chevy pickups and they get $600 for the NV3500. They had both external hydraulic cylinder activated and hydraulic type throw out bearings.
     
    Last edited: Jan 13, 2012
  22. 48FordFanatic
    Joined: Feb 26, 2011
    Posts: 1,335

    48FordFanatic
    Member
    from Maine

    Wow ! $200 I'd better start looking in NH rather than Maine. Can you give me any leads on where to look over your way ?
     
  23. the-rodster
    Joined: Jul 2, 2003
    Posts: 6,945

    the-rodster
    Member

    I have personally driven 230K miles with the one in my 92 GMC.

    Still shifts smooth as silk.

    Rich
     
  24. junk yard kid
    Joined: Nov 11, 2007
    Posts: 2,717

    junk yard kid
    Member

    Thanks I have searched high and low for something like that. good info
     
  25. toreadorxlt
    Joined: Feb 27, 2008
    Posts: 733

    toreadorxlt
    Member
    from Nashua, NH

    also, somewhere around 1994 they did the change from hydraulic slave to hydraulic throwout.
     
  26. So you want one from a 1995 or newer GTO for a NV3500 with the hydraulic throwout? I just picked one up out of a 99 S-10 for $275.00 87000 miles is all, hit by a coke truck in a parking lot. This is some good info.
     
  27. Please show pictures and explain some more because I need to know.
    I'm using a '97 4.3 S-10 Getrag that looks extremely similar to the transmission pic above.
     
  28. superjunkman
    Joined: Jul 21, 2006
    Posts: 965

    superjunkman
    Member
    from Austin, TX

    I've allways wondered what tranny I've got in my roadster. I was told it was some sort of S-10. It's toooooough!
     
  29. Shane Spencer
    Joined: Oct 3, 2009
    Posts: 2,160

    Shane Spencer
    Member

    toreadorxlt is right. these are readily available for CHEAP. the guy next door to my garage is a big time mini truck builder. a few guys in his club just sold theres in the $250 price range. check the minitruck and s10 forums, he said they all tend to ditch the 5 speeds for an auto. i plan on throwing one in my 59 pickup. this youtube video is a bagged 54 chevy with a 400 horse sbc and nv3500. i believe he is a fellow hamber http://www.youtube.com/watch?v=PEoDaQzPjI0
     
  30. diyduece
    Joined: Mar 7, 2012
    Posts: 1

    diyduece
    Member
    from Ohio

    I am putting one in my '32. What did you use for a throwout bearing & mc? If you used a stock one, how did you handle the factory hyd. line? Thanks
     

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