@drarifakhtar - Be very carful with the Rx-9 on the BHK AMPS. They fit great on the BHKPRE; however, the BHK250/300 it is very tight. I used the SS-9 on the BHK250; below is my post w/ pics on the BHKPRE & BHK250. I then transferred the one set from BHK250 to one BHK300 and bought the other set of SS-9 dampeners. The wheel diameter is a tad smaller and fits well. You don’t want to touch the door or opposing wall with the dampener wheel.
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