Parts are the killer with gearbox rebuilds, so expensive. Regarding the different oils, I just think that Redline is so overpriced! Syntrax is around half the price, and remember, no gear oil is going to stop teeth getting sheered off by abuse. You have to let the synchro do its job, most synchro's are damaged by people shifting to quickly, effectively beating the synchro

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F.B. Racing
01 WRX (STI badged)
2010 XR5 Focus
06 Impreza Hatch 2.0i