I heard the ball joint issue on the A/S cars was related to using longer post ball joints w/ spacers (to aide front roll center on a lowered car). I've also heard that the spherical bearings that Shine sells for VW's must be welded into the LCA. To me, this violates the 'unmodified' rule that governs IT suspensions. However, it would be legal in a limited-prep production car as they are allowed 'alternate' or 'reinforced' control arms. Personally, I use Delrin bushings w/ a metal sleeve inside for the pivot bolt.

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MARRS #25 ITB Rabbit GTI