When did the balljoint/knuckle change in early Z's?

[ezzzzzzz]

Somewhere in the past, Datsun changed the balljoints/steering knuckles (the earlier units no longer available?). This requires replacing the steering knuckles or taper reaming the early knuckles to accept the later balljoint. That said, can someone tell me when that transition took place? I have a rotten 73 240Z I'm gutting for parts. I hope the knuckles I need for my 71 (11/70) are on these piece of junk.

[2126]

Excellent question! As a performance alternative, you may consider purchasing a set of the shorter quick-steer steering knuckles. They have the later sized ball joint attach holes. Plus you will require less steering input for a given turn, as opposed to stock...great when your in the tight twisties. Someone will chime in and answer your question...hopefully!

[zcarnut]

Somewhere in the past, Datsun changed the balljoints/steering knuckles (the earlier units no longer available?). This requires replacing the steering knuckles or taper reaming the early knuckles to accept the later balljoint. That said, can someone tell me when that transition took place?

 

7/70 (July of 1970) is what my reference books say.

[ezzzzzzz]

Well, I might be in luck (which seldom happens) as my production date is 11/70. If that's the case then I'll have an extra set of knuckles for a series I owner when it comes time to change out tierods and balljoints. I have considered the shorter arms and may go that route when I install my WRX PS rack...all in due time, of course. Thanks to both of you.