A727 Rebuild kits redux - Rebuild kits everywhere (62-70 vs 71+)

AIV, I think you really need about 0.088" clearance in the front drum. 0.045" may be too tight and may bind/slam under light throttle and/or wot shifts. Even with 12 springs in the drum, I'd be tempted to loosen it up. You are doing a great documentation job for sure.
Thanks!
Tom