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NV 4500 strength?

Discussion in 'The Garage' started by cybrfire, Jun 2, 2004.

  1. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    I don't know much about this transmission so I'm doing some research. I've heard a few comments that it isn't as strong as some of the other gear boxes? Anybody have any experience with this trans?
     
  2. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Easily as strong as the SM465.

    Rene
     
  3. kennyw

    kennyw N9PHW Premium Member

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    5th gear is the only weak link on this transmission. I have a friend having constant trouble with his behind a '97 Cummins 2wd 3/4 ton. Lost 5th gear and installed the upgraded nut the first round. Lost 5th gear again when upgraded nut failed and 5th gear came off, this time he welded the gear to the main shaft. Now he is having problems with the shifter getting stuck in 5th gear. /forums/images/graemlins/doah.gif
     
  4. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    They have a lot less problems backing a gas engine. Between the input torque and the harmonic vibrations the diesel gives the NV4500 some troubles.

    Rene
     
  5. fortcollinsram

    fortcollinsram 1/2 ton status

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    It is a VERY strong tranny...The only problem they tend to have is the 5th ger nut falls off and you lose 5th gear. My roommate has a 1998.5 24V cumming with an NV4500 and it lost 5th gear at 105,000 miles and we just put the updated nut in. Well The "updated" nut fell off again after another 5,000 miles. So he replaced the tranny with a rebuilt unit that has the updated nut, updated mainshaft and updated gear. IMHO, you really must replace all 3 to completely solve the 5th gear problem...

    Chris
     
  6. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    Well, I guess I've made up my mind then. Now I just have to get rid of my transmissions and transfercase collections so I can afford the NV4500 and NP241.
     
  7. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    OH, yeah I forgot to mention, I talked to the dealership today and they told me that they have yet to have one come in for repairs so that is a good sign. Called a couple local junkyards but they didn't have anything. Bummer.
     
  8. rodzzilla

    rodzzilla 1/2 ton status

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    [ QUOTE ]
    Well, I guess I've made up my mind then. Now I just have to get rid of my transmissions and transfercase collections so I can afford the NV4500 and NP241.

    [/ QUOTE ]

    What about getting a 2wd tranny and hooking it up to the 205?
     
  9. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    Only issue there is length. I change my mind more often these days. It's starting to get difficult to get anything done.

    /forums/images/graemlins/doah.gif /forums/images/graemlins/thinking.gif /forums/images/graemlins/shame.gif
     
  10. mcinfantry

    mcinfantry 1/2 ton status

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    im running a 2wd nv4500 to a divorced np205. need me to measure it???
     
  11. rodzzilla

    rodzzilla 1/2 ton status

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    [ QUOTE ]
    Only issue there is length. I change my mind more often these days. It's starting to get difficult to get anything done.

    /forums/images/graemlins/doah.gif /forums/images/graemlins/thinking.gif /forums/images/graemlins/shame.gif

    [/ QUOTE ]

    You could always link the rear and move the W/B back a little.
     
  12. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    [ QUOTE ]
    im running a 2wd nv4500 to a divorced np205. need me to measure it???

    [/ QUOTE ]

    Yeah, that would be great. Let me know how far back to the end of the transmission from say the rear of the engine crossmember if ya would!
     
  13. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    [ QUOTE ]
    [ QUOTE ]
    Only issue there is length. I change my mind more often these days. It's starting to get difficult to get anything done.

    /forums/images/graemlins/doah.gif /forums/images/graemlins/thinking.gif /forums/images/graemlins/shame.gif

    [/ QUOTE ]

    You could always link the rear and move the W/B back a little.

    [/ QUOTE ]

    Ya know that is really tempting considering I'm thinking about changes in the suspension anyway. Them coilovers just kill it though.
     
  14. kennyw

    kennyw N9PHW Premium Member

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    [ QUOTE ]
    [ QUOTE ]
    Only issue there is length. I change my mind more often these days. It's starting to get difficult to get anything done.

    /forums/images/graemlins/doah.gif /forums/images/graemlins/thinking.gif /forums/images/graemlins/shame.gif

    [/ QUOTE ]

    You could always link the rear and move the W/B back a little.

    [/ QUOTE ]

    Talk about offering a drink of water to a drowning man /forums/images/graemlins/rotfl.gif /forums/images/graemlins/eek.gif
     
  15. Steve_87K5

    Steve_87K5 1/2 ton status

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    I've been runing the 4500 for about 9 yrs with my 350TBI K5 and pull a heavy trailer a lot. GCVW usually about 12 to 14k.

    5th nut came off once, retorqued it on with loctite 270 and it has stayed on. I don't run with the balancer because I use an adaptor to hook up the 205.

    I am planning to drop in a 6.5 and wonder what I'm in for (vibration wise) running without the balancer. Vibration
    has not been a problem with the gas engine. I have recently aquired a long snout round pattern 205. Maybe I could use the stock 4500 tail housing, dump the adaptor, and put the balancer back in? Anybody know if this will bolt up?
     
  16. rodzzilla

    rodzzilla 1/2 ton status

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    [ QUOTE ]

    Talk about offering a drink of water to a drowning man /forums/images/graemlins/rotfl.gif /forums/images/graemlins/eek.gif

    [/ QUOTE ]

    Just one of the many services we offer. /forums/images/graemlins/grin.gif You could always go coil or 1/4 elliptical until you get the coin for the coilovers, Kert.
     
  17. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    STOP IT!
    /forums/images/graemlins/shame.gif
     
  18. rodzzilla

    rodzzilla 1/2 ton status

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    /forums/images/graemlins/grin.gif

    /forums/images/graemlins/hack.gif /forums/images/graemlins/grind.gif /forums/images/graemlins/weld.gif /forums/images/graemlins/hack.gif /forums/images/graemlins/grind.gif /forums/images/graemlins/weld.gif

    I need a "Stirring the Pot" Smiley /forums/images/graemlins/whistling.gif /forums/images/graemlins/woot.gif
     
  19. mcinfantry

    mcinfantry 1/2 ton status

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    [ QUOTE ]
    [ QUOTE ]
    im running a 2wd nv4500 to a divorced np205. need me to measure it???

    [/ QUOTE ]

    Yeah, that would be great. Let me know how far back to the end of the transmission from say the rear of the engine crossmember if ya would!

    [/ QUOTE ]

    im not in a chevy.... how about the front of the tranny to the np205 rear yoke? im running a dodge bellhousing, so the only thing we would share is the tranny, to np205
     
  20. cybrfire

    cybrfire 1 ton status Vendor GMOTM Winner

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    yeah that would be cool.
     

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