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We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.

NV450 5speed blew at 184k miles.

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  • Staff

 As the title reads, yes my 5 speed NV4500 ate itself at 184k. 

 Some quick background, I bought the truck used with 138k on the clock. 

 Now after some conversations with @Mopar1973Man I should have dumped the oil in everything on truck right away after purchase and replaced with new but i did not (now regretting it). I dont believe the fluid was ever changed. 

 Now, I have been searching for a rebuilder near me to get this done. I was thinking of doing it myself but decided it may be best to leave it to someone that knows these things better thatn i do. Ive never rebuilt one before. Problem is, i cant find anyone around me that does it anymore.

 So now my options are rebuild it myself or buy one online, have it shipped to me and install it. 

 There is more than just the trans that needs replaced now also.  Looks like the rear main seal on the engine is leaking, clutch throw out bearing was getting noisy before the trans blew as well and during removal of the transmission the mount fell apart.

 I have already received my replacement clutch, I went with a southbend clutch, single disk HD organic towing clutch good for 450hp and 900 lb/ft torque. This was a kit that comes with new flywheel w/pilot bearing installed, new bolts, disk and pressure plate and throw out bearing.

 I'll need a new transmission mount, new rear main.

 And now for what you've all been waiting for.......pics......

 

 

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  • Staff

 I did mine in my gravel driveway. I laid a large piece of plywood under the truck to have a hard sufa e for the floor jack to roll on. I removed the trans with that. It worked well. I tore it all down myself. When reinstalling I had my boys come over to help. I'll warn you, that trans is HEAVY. They run about 200lbs. 

 When reinstalling it was a bit of a fight with the new shafts, new clutch. The new machined splines and such just don't glide in, they tend to be a bit sticky. It was worth the effort. Had I not flipped the 1st gear shift collar the wrong way this would have been perfect. So far she shifts like butter. The clutch is broken in now and smooth. Even being heavy duty the clutch takes no more effort than the oem.

Were you able to get the truck up high enough to sit or were y’all on your backs?. 
I’m sure they’re heavy. That one we did in that square body yrs ago was real heavy

  • Author
  • Staff

 We were laying on our backs fir the most part. It did kind of suck but sometimes you just do what ya gotta do to get the job done.

  • Owner

I've been pulling 5 and 6 speeds in my shop with the truck on level ground and only using a floor jack. I've got tricks on how to tie a transmission to a floor jack using one ratchet strap. Then learn other tricks for 3rd Gens and up on getting one stabbed easier than normal. Which happened to be the last clutch job I'll ever do. Was on a G56 transmission 2008 Ram 3500 and did a dual disc clutch on the floor. Give me a call sometime I'll have to explain how to wrap the ratchet strap and where to hook on the floor jack.

The last couple times I used two ratchet straps over the top of the frame. No jack, works pretty good.

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Welcome To Mopar1973Man.Com LLC

We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.