The easy way out would be to use the entire knuckle setup from a '71-'86 C30/'88-'91 R30. The balljoints will require swapping out, Moog K6122 upper and K6129T lower, you may also need to swap out the tie rod ends, which would be ES409RT/ES409LT (2 each) and 2 ES2004 adjuster sleeves.


Bill Burmeister