Everything posted by Doubletrouble
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NV450 5speed blew at 184k miles.
Got some more work done. This has been a long process but there were outside forces slowing me down. I finished the build on the trans, installed the 5th gear and special locking nut with plenty of red loctite as well. Installed the new cast iron tail housing then painted the case. Then installed the new flywheel, disk and pressure plate. Top is back on the trans, a light coating of grease on the input shaft and housing to ease the install through the throwout bearing, disk and pilot bearing. She is ready to install. I have help coming Saturday morning to assist the install. Fingers crossed she'll be back on the road tomorrow afternoon.
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NV450 5speed blew at 184k miles.
When I'm completely finished I will give a cost breakdown. I had to buy a few tools to do it so I figured that in as well.
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NV450 5speed blew at 184k miles.
Well she is starting to look like something. I've got the mainshaft installed, 5th gear syncro installed. Got held up since I don't have any hi-temp red lactate. I'll pick some up tomorrow. I'll need that to install the 5th gear nut. Then put the side pto covers back on and add some oil. Lol kind of shift through the gears on the bench before I put it back under the truck. Trying to double check everything since this is my first manual rebuild. Fingers crossed!
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Hello from Tennessee
What will be the end use if the truck? I assume we're talking about the 2nd gen mentioned in your first post? Are you looking to build a puller, drag truck, a heavy duty tow rig or a crazy powerful driver?
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Hello from Tennessee
Plenty of knowledge here on maintaining and modification. Most tend to lean towards minor power upgrades, fuel milage and longevity but there are some power hungry owners on here as well. We all use our trucks for different reasons and have different goals for our build. We also have a vendor section, articles on several different topics and many sub forums as well. I encourage you to browse the site. There is alot here. Enjoy!
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Hello from Tennessee
Welcome @Carverh15! You've come to the right place!
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NV450 5speed blew at 184k miles.
Absolutely, so far it doesn't seem to be real difficult.
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NV450 5speed blew at 184k miles.
Still haven't messed with the hub yet but I did clean up the case and install the countershaft and reverse idler gear. I began assembling the new main shaft from the output end. Once the stuck hub is off I'll be able to finish up the main shaft. I can get the bearing race out of the input shaft bearing retainer. Almost be cheaper to buy a new one than buy the tool to remove it. So that may happen. Looks so Shiney and new!
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NV450 5speed blew at 184k miles.
So how about an update. I have the trans tore down, case is all but empty. Main shaft is 2/3 tore down. I ran into an issue removing the 3-4 syncro hub, it's a press fit on a splined shaft. I do not have a press, tried pulling it with a 3 jaw puller per the nv4500 service manual. That didn't work, the jaws are to thick to get behind just the hub. Time to find a suitable puller or borrow someone's press. (A friend has one a few miles away.) Once this hub is removed I will be able to begin the process of stacking everything onto the new main shaft. The one that came from the trans appears to be oem, only half splined 5th gear. It did have an aftermarket 5th gear nut on it with a pinch bolt. When I loosened the pinch bolt the nut itself was barely finger tight. This nut is supposed to be torqued to 280lbft. So sooner or later that would have failed also. Here's a few more pics of the destruction. And some new parts..... Thus is the hub I need to remove to finish tear down on the main shaft. She's on there pretty tight it seems. Once removed I have some cleaning to do in the case then install new bearing races, install the counter shaft, reverse gear idler and then begin reassembly of the main shaft. That way it keeps loose parts on the bench to a minimum.
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OMG cracked head or bad injectors?
Yep, I did. I enjoyed chatting with @Mopar1973Man about all different topics. Always an informative and interesting conversation.
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Happy Thanksgiving
Happy Thanksgiving to all.
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NV450 5speed blew at 184k miles.
It will be replaced. The southbend kit I ordered comes with new flywheel.
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NV450 5speed blew at 184k miles.
Trans was definitely pulled at some point. Found a LUK clutch in there today. I pulled all the old clutch components off, removed the adapter plate and the rear seal plate. Seal is now changed, not installed on the engine yet though. The clutch that was in there shows some signs of extreme heat. I have seen worse but this is bad enough. Also, if you look closely at the friction disk and pressure plate it did not have full contact. Looks as if it may have had oil on the friction disk.
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NV450 5speed blew at 184k miles.
I was talking about the Lucas additive with the Mobile 50. Not to try to shore up the thin stuff. I was curious as to whether or not it would help the mobile 50 adhere the the gears better.
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W-T Ground wire mod - Informational warning
I used copper and soldered the ends on. I didn't want to trust that much current through an aluminum crimped terminal. Glad to hear the alternator didn't crap out on ya.
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NV450 5speed blew at 184k miles.
Would lucus oil help in a manual transmission? 🤔 we've all seen these little demo things at the parts stores. I never ever once turned the handles though I believe they make a gear oil additive as well. Just asking.......for a friend. Lol
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NV450 5speed blew at 184k miles.
@Mopar1973Man, how many miles on that failure? I believe it was an oil related issue. Someone has been in this trans to some extent. The 5th gear nut is not factory, it's an aftermarket fix for the nut backing off. At least they didn't weld it! Lol I have pulled the 5th gear nut off yet to see if the main shaft was updated with a full spline shaft or not. Hopefully today I'll get back to it. Been juggling this project with both my parents being in hospitals. Dad for a bad car accident and mom for other health reasons. Been a very busy couple weeks.
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NV450 5speed blew at 184k miles.
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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Curse of the 5th gear nut!
Yes it's true. I will be starting a thread on that shortly. I'll post the pics in that thread so I don't hi-jack this one.
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Not starting straight away every time
I prepared for it, have some money saved to get by. Should be just fine.
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Not starting straight away every time
I feel your pain. I just found out Friday I am laid off as of Monday morning. Time to get caught up around the house.
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Website is going to get busy again.
Looking good so far!
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Just out of curiosity
Doubletrouble is here!!! I've been busy lately closing up the camper for the season, had a couple vehicles to work on for other people but time has been limited because of the strike at toledo jeep. I've been having to run the "road" board again which means I'm out on the road more than at home. Been a bit of a roller coaster here lately, and to top it off the past 4 days I've been sick. Had all the good stuff, runny nose, cough, headache and body aches. No fun. But yes, I've been lurking a little and trying to keep up on some things. I'll be around more here soon.
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1991 Dodge Ram 250 - For Sale
To far away for me. Looks to be in good shape though.
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1991 Dodge Ram 250 - For Sale
Nice looking truck. I didn't see a price though.