If you had 5 frictions in there I would say 0.075 is fine. It looks like you only have 3 in there & 0.075 is too much clearance. See if you can get another friction & another steel in there & use a thinner snap ring to correct the clearance. I will normally put 4 frictions in the forward clutch drum with a clearance of 0.045 - 0.060.