Fifth Gear Lock Nut Retainer - Dodge Cummins Diesel Forum
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post #1 of 41 (permalink) Old 06-22-2011, 10:00 AM Thread Starter
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Fifth Gear Lock Nut Retainer

Has anyone had any experience with this 5th gear nut fix? I have replaced the nut 3 times and dont want to spend $700 on the main shaft...This thing is $145: NV4500 Transmission 5th Gear Repair


1998 QCLB 12v 2500 4x4 5spd
Scotty II intake, 304 stainless 4" TBE, #10 plate FF, Isspro boost & EGT guages, 43psi
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post #2 of 41 (permalink) Old 06-22-2011, 11:13 AM
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I don't have any experience with the 5th gear nut, but I did notice that the very first sentence on the website is a run on.

94 2500 rclb 5spd 2wd, 5x.016, 14.5 4k GSK, 60 lb springs, 13125-OFEK
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post #3 of 41 (permalink) Old 06-22-2011, 11:15 AM
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ON MY 96 I ENDED UP PUTTING A LOCKING NUT ON IT HAD 3 SET SCREWS AND IT HELD GREAT
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post #4 of 41 (permalink) Old 06-22-2011, 12:00 PM Thread Starter
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Quote:
Originally Posted by thecheese429 View Post
I don't have any experience with the 5th gear nut, but I did notice that the very first sentence on the website is a run on.
I was looking for actual experience, I talked to the owner of the company for 20 minutes and he seemed like a stand up guy. Just want some personal experience.

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Originally Posted by BEERPLAY View Post
ON MY 96 I ENDED UP PUTTING A LOCKING NUT ON IT HAD 3 SET SCREWS AND IT HELD GREAT
I'm not talking about the updated 5th gear nut, did you click on the link? I have already had 3 of the "updated" nuts back off. This seems like a fairly simple, cost-effective solution.

1998 QCLB 12v 2500 4x4 5spd
Scotty II intake, 304 stainless 4" TBE, #10 plate FF, Isspro boost & EGT guages, 43psi
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post #5 of 41 (permalink) Old 06-23-2011, 11:24 PM Thread Starter
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bump.......

1998 QCLB 12v 2500 4x4 5spd
Scotty II intake, 304 stainless 4" TBE, #10 plate FF, Isspro boost & EGT guages, 43psi
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post #6 of 41 (permalink) Old 06-23-2011, 11:52 PM
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What's the definition of insanity... something about doing the same thing over and over expecting a different result? I have yet to see any place recommend replacement of the 5th gear on a worn shaft. You've now allowed four sets of gears to work on that same shaft and you're considering going for number 5. I think it's a bad idea, but its your cash, and this is the internet.

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post #7 of 41 (permalink) Old 06-24-2011, 12:50 AM
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When i bought my truck the guy i got it from said he rebuilt the tranny. well 500 miles later 5th gear nut backed off. i talked to a guy and he said he just tack welded the nut on perfectly diagonally in two spots. so i did it works great just when you do it make sure the welds are the same size so that the shaft does not get thrown out of balance it works great now.

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post #8 of 41 (permalink) Old 06-24-2011, 08:14 PM
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I've welded alot of them lol just hope you dont have to take it off!

97 12v nv4500 4x4 sb clutch #10 plate HTTurb lot mo
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post #9 of 41 (permalink) Old 06-24-2011, 10:16 PM
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I have the retainer in my trans now but only 1000 miles so far if it fails I'll be sure to post it up but I don't think I'll be having any problems with it.

97 nv4500 4x4. 63/68/.83, 5x14, 025dv, airdog 200gph, Hellman sump, steedspeed T4, Hamilton 188/220, Hamilton HD pushrods, SDX beehive springs & retainers, valair 3800 DD.
^now building a new engine.
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post #10 of 41 (permalink) Old 06-25-2011, 12:31 AM
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Weld it, They even did this on the TV show Trucks when they built the ford on a Dodge chassis with a 5.9 and a 5 speed.

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post #11 of 41 (permalink) Old 06-25-2011, 12:45 AM
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That is actually the fix that most of the trans. shops do to fix the problem, they weld the gear on both sides evenly, it doesnt come loose again, I have personally seen this done many times.

98.5 Auto 1-ton no mods
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post #12 of 41 (permalink) Old 06-27-2011, 11:34 AM Thread Starter
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Quote:
Originally Posted by smokin247 View Post
I have the retainer in my trans now but only 1000 miles so far if it fails I'll be sure to post it up but I don't think I'll be having any problems with it.
I talked to the owner of active gear (company that makes the retainer) and he said he hasn't had a single failure of the retainer in the 2.5 years they have been making it.

I'm gonna order mine today and I will post up when I get it installed.

1998 QCLB 12v 2500 4x4 5spd
Scotty II intake, 304 stainless 4" TBE, #10 plate FF, Isspro boost & EGT guages, 43psi
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