Originally Posted by Mike D
burbs - IRS has lightened diff rings too. They are designed for D-ring diffs and have the center of gravity located at the axis of rotation to reduce vibration. $6 for a 4 pack is way cheaper then the rocket rings.
link:
http://www.teamirsrc.com/topgun.html
Mike the irs ones are not sanded flat like the rocket rings.. there just stamped with a different center cutout... You still have to sand them tho.. But thanks for the info, I think im going to pick up a bag, and sand them... They look alot like the rocket ring cuts..