This is the Diff Shaft Set For the HPI Racing WR8 and Bullet SeriesFEATURES: Steel constructionINCLUDES: Two differential shafts One flat washer One shimCOMMENTS: This diff shaft set can be installed on 1/8 WR8 3.0 Ford Fiesta Rally Abu Dhabi RTR (HPID6949) 1/10 Bullet MT 3.0 Nitro 2.4GHz RTR (HPID7006) 1/10 Bullet ST 3.0 Nitro 2.4GHz RTR (HPID7004) 7/20/12 pjw ir/jxs