Now that I'v decided to change over to synthetic fluids can anybody tell me a good weight of lube and the amounts it takes for the following parts

front diff
rear diff
transfer case
5 speed naual tranny
power steering pump

i think thats all of em, but if I'm missin one jump in and let me know.

 

Don't forget motor oil.

 

to expensive for as often as it gets changed Tyler

 

If your front axle is the Dana 60, it's listed fluid capacity is 6.3 - 7.3 pts. A 75W-90 should work well here.

I assume you have a Dana 80 rear axle, it's capacity is anywhere from 6.8 to 10.1 pts.
A 75W-90, or XXW-140 if towing alot would work here. If it's limited slip, you may need additional friction modifier if the clutch packs chatter. I wouldn't get it right away, unless the clutch packs chatter after you change the fluid out. I've got Royal Purple 85W-140 synthetic in mine, and it didn't require the FM.

The OEM fluid in the NVG4500 is Castrol Syntorq LT, which is a 75W-85 GL-4 synthetic fluid. Stock capacity is 4 quarts. Other than the OEM, I've found a 50/50 mix of Redline's MTL/MT-90 GL-4 synthetic manual transmission fluid works well at a fraction of the cost.

The NV241 standard transfer case takes 5 pts. If you have the HD version, it takes 6.5 pts. ATF is the fluid in here. Although Redline's MTL would work as well.

I don't know the capacity of the PS system. I used 1 quart of Valvoline Synpower in mine, by suctioning a little a time out of the pump until I had the entire quart in the system.

Good Luck!