hard engine-braking in second gear- will this wreck a 904/727?

If your staying in second your stressing the front band, not the sprague and I agree with the above about the front band. Your asking a lot from it considering it's size. I used one for an early 90's A500 in my 904. Think it's was around 1.6" wide. Got it in Kevlar too so it'll take the abuse. Their dirt cheap is the good part. Also tighten up the end play to as close as .020" as you can get it so the stator rings aren't working back and forth so much. That rounds the edge of them off and they lose sealing ability