Losi Differential Seal Set: 8B, 8T, LST, XXL, LST3XL-E, 8X, 8XE LOSA3505 is compatible with LOS04000, LOS04001, LOS04002, LOS04003, LOS04004, LOS04015, LOSA0801, LOSA0802, LOSA0804, LOSA0805, LOSA0806, LOSA3600, LOSA3601, LOSA3602, LOSA3603, LOSB0012LE, LOSB0081, LOSB0083, LOSB0084, LOSB0085, LOSK0800, LOSK0804EU, TLR04000, TLR04001, TLR04002, TLR04003, TLR04004, TLR04005, TLR04006, TLR04007, TLR04008, TLR04010, TLR0804, TLR0805