According to the instruction sheet I have from Progressive for the 416 air shock you should fill it with 2oz. of ATF. Don't know about the other Progressive models.Thanks for the info- ive used ATF before- just someone had mentened gear oil-I would think that would be too heavy of oil Anyway thanks again
CRAIGA
Yep!Thanks for the info -do you think i should use the same amount og fork oil as ATF
Thanks CRAIGA