Engine/Transmission (1998.5 - 2002) losing 5th on the nv4500 will it still drive

[JamesSimpson]

If you lose the 5ht gear nut are you stranded or will the transmission still operate fine in 1-4 gear and rev?

 

[steved]

It'll still drive in 1-4 and R... you just don't have 5th...



I wouldn't do it very long (just to get home), but my dad drove about 1500 miles with it off (no choice) and nothing was damaged... in fact the gear could have been reused.



steved

 

[Cummins724]

How hard is the 5th gear nut to access? Does it require you to drop the trans or is it a quick fix? I don't know for sure, but I've been feeling some wierd shifts in fifth... . just doing some early research.

 

[steved]

I will just state this because I have never had one apart myself (only saw my dad's apart at the dealer, how I know what the guts look like).



The 5th gear is external to the main trans body... it is in the tailshaft assembly... it doesn't require the trans to be removed.



It does require a special tool to tighten the nut that holds the gear on the shaft... but I think guys get around this somehow...



I believe the TSB on it only states about 3 hours to do the entire thing... make sure you have the TSB before you go to a dealer as the one who repaired my dad's 4500 didn't install the updated nut the first time through (didn't know it existed)...



You probably wouldn't need the new gear the TSB calls for (the original one looked perfect, but they replaced it anyway)... probably just need the new nut.



Any thing beyond that and I can't help.



steved

 

[Highfinance97]

I drove mine around for a couple weeks after i lost 5th

then did a pull, drove around for another week and blew out third :-laf



So i wouldnt do it for very long





Michael

 

[KKunz]

this is the guy you need to see dan at quad 4x4 www.quad4x4.com he has the tools and every thing you need. when I lost 5th I drove up to see him he was a great help.

 

[JamesSimpson]

Cool just doing research right now Looking at getting a 24v with either a 5 or 6 spd. I dont tow alot so leaning more to the 5spd especially since the 6spd seems to be harder to find hard parts for. Sound to me that the guys at standardtransmission have this all figured out on the nv4500

 

[webergreg]

I just put my truck back together last weekend, after doing everything the hard way :{ :{ .

Steved is correct about the location of 5th gear and the nut, I found that is where it is after everything was removed from truck. Mine had the updated nut in it, and everything should have been fine except that the lock screw was not tight when it was updated (prior to my owning it). It is an easy fix if you are good with a few simple tools. Much less expensive than dealer/transmission shop labor expense. If you have any ?? I may be able to help while it is fresh in my head