Well my mini’s gearbox failed on more than one occassions, first time I got a recon one from ideal engines that worked perfectly for next three years and endured dozen of track days but it too eventually failed, these synchros usually falter. Second time i again ordered one from ideal engines but despite a month of wait didnt recieve any, they have some ridiculously lazy finanacing partner, anyhow i got the complete refund and placed a new order directly through phone, this time i got it within a week. despite the delay i have to say they do an immaculate job on reconditioning.