6 bolt vs. 4 bolt cv joints...is one better than the other?

Rufblackbird · 03-21-2005, 12:09 AM

Hey all,
I'm currently in the midst of swapping over aluminum trailing arms off a '76 onto my '72. The '76 uses a 6 bolt cv joint while the '72 uses a 4 bolt one. Is one better/stronger over the other?

Also, because my impact gun is pretty weak and I didn't notice the difference until I tore everything apart, instead of swapping the stub axles from the hubs could I swap in the 6 bolt output flanges from another 915 trans and just use the 6 bolt cv shafts from the '76? They seem a bit beefier as well (right one in pic). TIA!!

island911 · 03-21-2005, 09:09 AM

Quote:

Originally posted by Rufblackbird
... could I swap in the 6 bolt output flanges from another 915 trans . . .

I would expect that they could be swapped. . . but I don't know for sure.

bump

Rufblackbird · 03-21-2005, 06:28 PM

thanks Glenn...anyone else?

Early_S_Man · 03-21-2005, 08:35 PM

Jeff,

You can't swap the '76 output flanges into your '72 915 ... the splines in the differentials are different!

Rufblackbird · 03-21-2005, 09:36 PM

Thanks Warren....I was looking through some records for the car today; trans in the '72 is from a '75, and the output flanges are from a '81 915. Would that work?

I think I'm gonna end up buying a better impact gun to swap the stub axles instead.