Engine/Transmission (1994 - 1998) '94 NV4500 Lost 5th Gear

[Big Red 94Ram]

All I did was buy a rebuilt trans with the fully splined shaft and 5th gear fix all for $1200 with a 12,000/1 year warranty. So far so good. Only thing i don't like about it is that the fill plug socket side was stripped.

 

[surfbeetle]

If you read the fifthgearrepair.com, it is only for a four wheel drive trans, something to due with how they keep the gear in place can only be used on a 4x4 and it won't work on a two wheel drive. Also, there was a comment on using royal purple causing a fifth gear failure, I call bs on this one. I still have my factory original unmolested trans and all I have used for the last 10 years is royal purple. The trans has only been out once at 180,000 to change the clutch because the pressure plate failed, still had lots of lining left. I have 220,000 miles and a 11,000 fifth wheel. What causes the failure is the vibrations caused by lugging the engine in fifth gear under a load, basically it's how you drive it that causes a premature failure. If mine fails now, I would say I got my 18 1/2 years worth out of it.

 

[ewcmr2]

Tar heel,

https://www.turbodieselregister.com/forums/showthread.php?205340-12v-six-speed-swap-speedo

 

[Boomer II]

I lost 5th gear four times, three of them on vacation trips, finally put in a NV5600 & couldn't be happier.