B5 / B5M Pro Built Diff, Hardened Steel XRAY and helps prevent the oil

and helps prevent the oil from heating up and "blowing thru" the stroke in longer runs

LP Battery Thumb(2)

the diff has a little more give

Part Number:  JCO2903

Kurt's Pro Tip:  The 3-gear provides more punch on acceleration

B5 / B5M Pro Built Diff, Hardened Steel XRAY and helps prevent the oilPart Number: 1228 Got a B5M kit but need a ball diff? We offer Schelle Pro Built series diffs for those that want the best. Whether you need to replace a gear diff with a ball diff, or your diff outdrives are worn and chipped, get a Schelle Pro Built. The Schelle Pro Built diff uses the best parts on the planet from Schelle and Team Associated. Built like the pros run, this diff uses Schelle 3 32" Tungsten Carbide diff balls along with a caged ceramic