12v NV4500 swap time!

Discussion in '1st Generation Cummins' started by sailingjacobe, Jan 7, 2018.

  1. sailingjacobe

    sailingjacobe Registered User

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    Well it is almost time to swap my 1992 D350 12v from a A518 Slush box to Nv4500!

    So far the parts ive got are:
    • 2WD Nv4500 HD from a 2003 24V
    • 2nd gen bellhousing
      • Came with earlier rear housing with speedometer hole!
      • Clutch Pedal Set (in the truck now)
    • 2nd gen block adapter
    • 2nd gen starter ( Might need to order a spacer)
    • 2nd gen clutch fork
      • brand new from Craigslist
    • 2nd gen hydro slave master set
    • 2nd gen 13" clutch and fly wheel from The Hungry Diesel
      • South Bend Dyna Max Clutch Kit - With Flywheel
      • 425hp, 900ft
      • 13125-OK-HD
    26609767_306541063199895_1838411672_o.jpg 26653030_306883216499013_133168238_o.jpg 26613437_306883386498996_1876797428_o.jpg 26609782_306511663202835_1094973061_o.jpg 26652929_306447596542575_635358974_o (1).jpg
     
    Last edited: Jan 7, 2018
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  2. sailingjacobe

    sailingjacobe Registered User

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    Other Items I have purchased to go along with this are:
     
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  3. sailingjacobe

    sailingjacobe Registered User

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    South Bend clutch and fly wheel arrived today! Cant wait to get on the conversion!
    26850205_310083652845636_7717801410263503909_o.jpg
     
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  4. sailingjacobe

    sailingjacobe Registered User

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    Completed the Swap!
    Had a few issues during the swap, Had to cut a good piece of the front of the trans tunnel.

    All is left is to lengthen, add yoke, and new U Joints for the drive shaft.
    After that I need to install hydro master and slave and wire up the starter.

    Engine Plate, fly wheel, starter, clutch!
    28417701_329317654255569_670355878_o.jpg
    Adding in new removable panel
    28450106_329920327528635_1011171341_n.jpg
    Welding up the trans bracket
    28534485_332282560625745_376262985_n.jpg
    mostly mounted the Trans mount! Just need to drill the passenger side
    28641277_332362917284376_34986406_o.jpg
    And to top it off, added some new carpet to cover the tunnel and new shifter boot. (will order LMC Carpet set eventually.
    19114367_332237420630259_640086394_n.jpg
     
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  5. sailingjacobe

    sailingjacobe Registered User

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    Well Started the truck for the first time 2 weeks ago. Took it for its maiden voyage, found that 3rd gear doesn't stay in and 4th doesn't work at all, After pulling the trans back out, I opened the top casing to see what was going on, Found that the 4th gear syncro is missing all the teeth. So handed it over to have it rebuilt. Hopefully will be back soon!
    28959378_336785883508746_5246074656804306944_n.jpg
     
  6. kickdheney

    kickdheney Full Access Member

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    Man its looking good you should keep that carpet. I'm literally about to do the exact same thing except I believe the old transmission was a 47re. Anything u recommend for me? The donor nv4500 is out of a 96 2500, thats all I have at the moment. Your old transmission mount wouldn't work? I figured you might need new brackets but I didn't know you need a whole new mount. 1st Gen flywheel and starter won't work? I'm going to need to lengthen the drive shaft? Looks like I need to read up a little more. Is their a sticky of some sort?
     
    Last edited: Oct 5, 2018
  7. u2slow

    u2slow Plan B

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    The mount on the NV4500 hangs lower than any of the 2wd 727/a518/Getrag transmissions. A 1stgen 4wd crossmember might be closer to working.

    1stgen flywheel should work... with a stock 13" 1stgen clutch. This flywheel has an outer lip on it. The stock 2ndgen 12" clutch and (aftermarket clutches) use flywheels without the lip. Most jobber clutch & flywheel kits for the 1stgen are 12" 2ndgen stuff.

    1stgen and 2ndgen starters have a different bolt pattern and clocking.
     
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  8. kickdheney

    kickdheney Full Access Member

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    All right i just bought an adapter plate with the 2nd gen starter and the clutch pedal assembly with the master cylinder bracket. . I have a welder so worse case i can fab a tranny mount. So if i got a clutch for the getrag it would work with the nv4500? Also I found a prefilled master slave setup. will the slave cylinder for the getrag work for the nv4500? Or should it be the other way around 2nd gen hydraulic setup so it has the correct slave for the tranny?
     
    Last edited: Oct 5, 2018
  9. sailingjacobe

    sailingjacobe Registered User

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    Sorry for a late reply, Havent check the forum in a few days. The start of the thread I listed all the parts I got with most of the part numbers.

    Yes you will have to lengthin the driveshaft. But you may not know the length till you have it in the truck. Mine was about 4" I think it was.

    The Nv45 trans mount is much lower and in the incorrect spot.i suggest fabbing up something similar to what I built But make the distance between the 2 long bars a little wider. I ended up cutting the mount and making it differnt. Ill find pics later. ( I sold the truck a couple months ago).

    I highly suggest the second gen starter and nv4500 to 12V housing. Made life 100 times easier. Than I used a 2nd gen clutch and master, Had to lengthin the rod to reach the pedal but that was easy.

    Ill find some other photos later when I have some free time and post them up in here.
     

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