MIP’s new Bi-Metal Super Differential Kit uses an unconventional design that removes the standard diff pin and replaces it with a pair of 7075-T6 aluminum halves that reduce rotating mass by 30%. This kit also includes Tungsten Carbide Diff balls and MIP’s rebuildable machined aluminum T-Nut that provide you a longer lasting, smoother differential.
Since this diff is so much lighter, it’s perfect for stock racers, offering quicker acceleration.
16020 MIP Bi-Metal Super Differential Kit for the TLR 22 Series
[source: www.miponline.com]