Engine/Transmission (1994 - 1998) 5spd opened up what should i upgrade

[moremph]

Well i have the 5spd laying out on the floor gutted (input shaft and the first main gear on the counter shaft are shot) Gotta fix them. Also it was really low on oil so one of the seals ids gotta be out in the back (front looked dry) My ?'s are what all should i do while i am in hear? Thanks alot Travis. (ps what sizxe is the input shaft it is a 96 thanks)

 

[Forrest Nearing]

do the 5th gear fix if you haven't already.

 

[moremph]

just the nut or replace the mainshaft with new splines? Are those thigs reall expensive? PS. what size 12point socet do i need to get that back housing off the transmission to get to 5th gear? Thanks Travis

 

[krs]

(2nd time this morning tooting this guy's horn for nothing - not related or affiliated)



This site has good reading about your trans and Dan, the owner, knows it backwards and forwards. Selling parts, kits, and tools for the work or he'll do it for you.

http://www.quad4x4.com/

 

[kentdiesel]

Moremph,

The 12 point bolts you refered to are 10mm. I would recommend using high quality tools like snap on because the bolts are very tight and rounding the points off would cause removal to suddenly become a PITA.



Kent

 

[Joseph Donnelly]

The folks at standard transmission can help and have all the parts you need. 800-std-tran

 

[dieselburner]

Originally posted by Joseph Donnelly

The folks at standard transmission can help and have all the parts you need. 800-std-tran

I will second that. I used them when I snapped my main shaft and they set me up with timken bearings and new syncros and a new fully splined shaft with the latest 5th gear fix. transmission is perfect.

 

[krs]

"The folks at standard transmission can help and have all the parts you need".



And I'll third that. I only posted the link above because there's a good bit of descriptive info contained there, and I have first hand dealings with them.



Also, Standard trans. is, I believe, the ONLY source for the OEM recommended oil for the NV4500 in user amounts. I was able to buy just one gallon of the stuff from them when every other source would/could only talk about bulk amounts.

 

[Jff24Gordn]

There is a double snap ring update for the 5th synchro assembly. it replaces the 1 snap ring with 2 that is a tight fit so it dont have any extra play. There is an updated countershaft. On your truck, the drive gear and the 3rd on the counter shaft are pressed on. The updated one has the entire shaft and gears milled from 1 piece. The gears on the old one are suposed to be able to be pressed off, but if you have been beating on the transmission with lots of HP or shock loads, poppin the clutch, very fast shifts, it will not press off because the gears twist on the shaft.