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Griso gear and diff oil
- Thread starter Grvforce
- Start date
GL5 is fine. The Griso can use the same weight oil in both. A good synthetic 75W90 will be fine.
Just so you know, the one w/lesser capacity is the rear drive.
Grvforce
Tuned and Synch'ed
Thank you so much buddy
Grvforce
Tuned and Synch'ed
You are right, it make sense
Attachments
NorthernProducer
Just got it firing!
Not to throw a damper on the interchangeability of the GL4 vs GL5 gear lube recommendations, I suggest you research whether or not your tranny and differential has any "yellow metal" (brass, bronze or copper) components within...like some used for some synchronizers. GL4 is compatible with those "yellow metal" parts, but GL5 or even the combination GL4/GL5 are generally considered NOT compatible.
Maybe Todd can jump in here with his thoughts?
Maybe Todd can jump in here with his thoughts?
kiwi dave
GT Reference
Redline shockproof heavy is what I use.
These gearboxes are constant mesh. No synchronizers or yellow metal. BTW, Royal Purple GL5 is compatible with the yellow metal components. I use it in the rear drive of my Model T Ford.