Quote:
Originally Posted by flooredrunner
Hello all, this may be a weird question but I’m looking to replaced the gear oil in the transfer case of my rig with red line fluid.
Should I be using 75w90 gl5 for hypoid gears or the 75w90ns gl5 without the friction modifier? Any information is appreciated
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You can also use their MT-90 same as you are putting in the 5spd. No need to have GL-5 in the transfer case. Then you can deal with the transfer and tranny all at the same time.
