just wondering if this is ok to run in the old rag 5 speed or is it too thin?

 

I had to read up a little, not too familiar with the getrag myself. It looks as though most are using a 5/30 motor oil or a 5/30 synchromesch tranny fluid. I don't think it will be too thin and going synthetic will help.

 

thanks for the info!!! what about running it in the transfer case?

 

I'm not sure about running it in the tcase. I know a lot of duramax owners that run 5/30 motor oil in theres but with the dodge, everything I've seen is just the universal atf.

 

Yep

 

is this a np205? there are a few options depending on how hot or how cold the weather is on the t case. if it's cold they take motor oil if it's warm it's atf.

 

ok i live in oregon so it only gets in the 20's every so often. how cold is cold?

 

Transfer Case,NP205......GL-5
Above -9 F......90
SAE 80W-90 Synthetic Gear Lube (AGLQT)
SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
75W-90 Synthetic Long Life Gear Lube (FGRQT)
Transfer Case,NP205......SJ
Above 32 F......50
Synthetic Powershift Transmission Fluid SAE 50 (CTL05)

if it were me I would just run some severe gear in it. Most 205's had gear oil in them in the older vehicles.