Wavetrac Differential, VW Type 020 MK1 MK2 MK3 4cyl.
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Fits: VW Golf/Jetta/GTI/Scirocco MK1 & Mk2 VW Golf/Jetta/GTI MK3 8v only ARP Bolt kit sold seperately HERE Wavetrac diffs are state-of-the-art helical gear differentials designed, developed, and manufactured in the USA by Autotech Driveline. The MK1, MK2 and MK3 Wavetrac Differential is the only torque biasing diff